diff --git a/calculators_list.md b/calculators_list.md
index 0a0caea..48c0332 100644
--- a/calculators_list.md
+++ b/calculators_list.md
@@ -1425,6 +1425,27 @@ The registry currently contains 1333 unique calculator slugs.
 | Yoctograms to Kilograms – Express a yoctogram as a slice of a kilogram. | yoctograms-to-kilograms | weight | 1e-27 |
 | Yoctograms to Ounces – Convert yoctograms into ounces to contextualize minute masses. | yoctograms-to-ounces | weight | 3.5273961949580413e-26 |
 | Yoctograms to Pounds – See how many pounds a yoctogram of mass amounts to. | yoctograms-to-pounds | weight | 2.2046226218487758e-27 |
+| Yoctograms to Amu – Convert yoctogram-scale masses into atomic mass units for molecular counts. | yoctograms-to-amu | weight | 0.602214076208 |
+| Yoctograms to Atomic Mass Units – Another label for counting particle masses from yoctograms. | yoctograms-to-atomic-mass-units | weight | 0.602214076208 |
+| Yoctograms to Apothecary Ounces – Express super-small masses as apothecary ounces for pharmacy history. | yoctograms-to-apothecary-ounces | weight | 3.21507465686e-26 |
+| Yoctograms to Attograms – Bridge yoctograms to attograms when working in sub-attogram refinements. | yoctograms-to-attograms | weight | 1e-06 |
+| Yoctograms to Carats – Translate yoctograms into carats when sizing gem-scale masses. | yoctograms-to-carats | weight | 5e-24 |
+| Yoctograms to Centigrams – Put yoctograms in terms of centigrams for micro-precision weight notes. | yoctograms-to-centigrams | weight | 1e-22 |
+| Yoctograms to Drams – Compare yoctogram masses with drams used in detailed apothecary recipes. | yoctograms-to-drams | weight | 5.64383391193e-25 |
+| Yoctograms to Earth Masses – Place yoctograms on the cosmic scale by converting into Earth masses. | yoctograms-to-earth-masses | weight | 1.67437717355e-52 |
+| Yoctograms to Grains – Convert yoctograms into grains for fine-grained mass tracking. | yoctograms-to-grains | weight | 1.54323583529e-23 |
+| Yoctograms to Hundredweight – Express yoctograms as US hundredweights for larger-scale intuition. | yoctograms-to-hundredweight | weight | 2.20462442018e-29 |
+| Yoctograms to Hundredweight (cwt) – Keep the cwt shorthand when converting yoctograms into hundredweights. | yoctograms-to-hundredweight-cwt | weight | 2.20462442018e-29 |
+| Yoctograms to Long Tons – Scale yoctogram counts into UK long tons for shipping specs. | yoctograms-to-long-tons | weight | 9.84206527611e-31 |
+| Yoctograms to Metric Tons – Express yoctograms as metric tons for SI-compatible summaries. | yoctograms-to-metric-tons | weight | 1e-30 |
+| Yoctograms to Momme – Convert yoctograms into momme when dealing with silk fabric weights. | yoctograms-to-momme | weight | 2.66666666667e-25 |
+| Yoctograms to Pennyweights – Translate yoctograms into pennyweights for jewelers referencing minute masses. | yoctograms-to-pennyweights | weight | 6.43014931373e-25 |
+| Yoctograms to Planck Mass – Push yoctograms toward Planck-mass units for fundamental physics comparisons. | yoctograms-to-planck-mass | weight | 4.59467183475e-20 |
+| Yoctograms to Quarters – Convert microscopic yoctograms into quarters to understand historic lot sizes. | yoctograms-to-quarters | weight | 7.87365222089e-29 |
+| Yoctograms to Scruples – Express yoctograms in scruples when bridging to classic troy units. | yoctograms-to-scruples | weight | 7.71617917647e-25 |
+| Yoctograms to Short Tons – Scale yoctograms up to short tons for bulk weight checks. | yoctograms-to-short-tons | weight | 1.10231131092e-30 |
+| Yoctograms to Slugs – Translate yoctograms into slugs when referencing engineering mass units. | yoctograms-to-slugs | weight | 6.85217658554e-29 |
+| Yoctograms to Solar Masses – Compare yoctogram probes with the mass of the Sun. | yoctograms-to-solar-masses | weight | 5.02899213969e-58 |
 | Zeptograms to Grams – Convert a zeptogram mass into grams. | zeptograms-to-grams | weight | 1e-21 |
 | Zeptograms to Micrograms – Express a zeptogram as micrograms. | zeptograms-to-micrograms | weight | 1e-15 |
 | Zeptograms to Nanograms – Translate zeptograms into nanograms. | zeptograms-to-nanograms | weight | 1e-12 |
@@ -1434,6 +1455,27 @@ The registry currently contains 1333 unique calculator slugs.
 | Zeptograms to Kilograms – Express a zeptogram as part of a kilogram. | zeptograms-to-kilograms | weight | 1e-24 |
 | Zeptograms to Ounces – Convert zeptograms into ounces for ultra-small weights. | zeptograms-to-ounces | weight | 3.5273961949580413e-23 |
 | Zeptograms to Pounds – See how many pounds a zeptogram equals. | zeptograms-to-pounds | weight | 2.2046226218487758e-24 |
+| Zeptograms to Amu – Convert zeptogram-scale masses into atomic mass units for molecular counts. | zeptograms-to-amu | weight | 602.214076208 |
+| Zeptograms to Atomic Mass Units – Another label for counting particle masses from zeptograms. | zeptograms-to-atomic-mass-units | weight | 602.214076208 |
+| Zeptograms to Apothecary Ounces – Express tiny masses as apothecary ounces for historic pharmacy tables. | zeptograms-to-apothecary-ounces | weight | 3.21507465686e-23 |
+| Zeptograms to Attograms – Bridge zeptograms to attograms when dealing with close sub-attogram scales. | zeptograms-to-attograms | weight | 0.001 |
+| Zeptograms to Carats – Translate zeptograms into carats for gem-scale microweights. | zeptograms-to-carats | weight | 5e-21 |
+| Zeptograms to Centigrams – Put zeptograms into terms of centigrams for micro-metric comparisons. | zeptograms-to-centigrams | weight | 1e-19 |
+| Zeptograms to Drams – Compare zeptogram masses with drams for detailed apothecary conversions. | zeptograms-to-drams | weight | 5.64383391193e-22 |
+| Zeptograms to Earth Masses – Place zeptogram probes on the cosmic chart by converting into Earth masses. | zeptograms-to-earth-masses | weight | 1.67437717355e-49 |
+| Zeptograms to Grains – Convert zeptograms into grains for precise mass notes. | zeptograms-to-grains | weight | 1.54323583529e-20 |
+| Zeptograms to Hundredweight – Express zeptogram values as US hundredweights for large-scale comparisons. | zeptograms-to-hundredweight | weight | 2.20462442018e-26 |
+| Zeptograms to Hundredweight (cwt) – Keep the cwt shorthand when converting zeptograms into hundredweights. | zeptograms-to-hundredweight-cwt | weight | 2.20462442018e-26 |
+| Zeptograms to Long Tons – Scale zeptograms into UK long tons for shipping approximations. | zeptograms-to-long-tons | weight | 9.84206527611e-28 |
+| Zeptograms to Metric Tons – Express zeptograms as metric tons for SI-friendly summaries. | zeptograms-to-metric-tons | weight | 1e-27 |
+| Zeptograms to Momme – Convert zeptograms into momme when working with silk-weight numbers. | zeptograms-to-momme | weight | 2.66666666667e-22 |
+| Zeptograms to Pennyweights – Translate zeptograms into pennyweights for jewelers measuring minute weights. | zeptograms-to-pennyweights | weight | 6.43014931373e-22 |
+| Zeptograms to Planck Mass – Push zeptograms toward Planck-mass units for fundamental physics comparisons. | zeptograms-to-planck-mass | weight | 4.59467183475e-17 |
+| Zeptograms to Quarters – Convert zeptograms into quarters to contextualize old weight lots. | zeptograms-to-quarters | weight | 7.87365222089e-26 |
+| Zeptograms to Scruples – Express zeptograms in scruples when bridging to classic troy units. | zeptograms-to-scruples | weight | 7.71617917647e-22 |
+| Zeptograms to Short Tons – Scale zeptograms into short tons for bulk weight comparisons. | zeptograms-to-short-tons | weight | 1.10231131092e-27 |
+| Zeptograms to Slugs – Translate zeptograms into slugs for engineering mass references. | zeptograms-to-slugs | weight | 6.85217658554e-26 |
+| Zeptograms to Solar Masses – Compare zeptograms with the mass of the Sun. | zeptograms-to-solar-masses | weight | 5.02899213969e-55 |
 | Minutes to Days – See how minutes accumulate into days. | minutes-to-days | time | 0.0006944444444444444 |
 | mmHg to Bar – Translate millimeters of mercury into bars for pressure specs. | mmhg-to-bar | pressure | 0.00133322368421 |
 | mmHg to PSI – Express blood pressure in PSI instead of mmHg. | mmhg-to-psi | pressure | 0.019336776 |
@@ -9044,76 +9086,76 @@ The registry currently contains 1333 unique calculator slugs.
 - [ ] Years to Seconds
 - [ ] Years to Shakes
 - [ ] Years to Sidereal Days
-- [ ] Yoctograms to Amu
-- [ ] Yoctograms to Apothecary Ounces
-- [ ] Yoctograms to Atomic Mass Units
-- [ ] Yoctograms to Attograms
-- [ ] Yoctograms to Carats
-- [ ] Yoctograms to Centigrams
+- [x] Yoctograms to Amu (1 yoctogram ≈ 0.602214 amu)
+- [x] Yoctograms to Apothecary Ounces (1 yoctogram ≈ 3.215e-26 apothecary ounces)
+- [x] Yoctograms to Atomic Mass Units (1 yoctogram ≈ 0.602214 atomic mass units)
+- [x] Yoctograms to Attograms (1 yoctogram = 1e-6 attograms)
+- [x] Yoctograms to Carats (1 yoctogram = 5e-24 carats)
+- [x] Yoctograms to Centigrams (1 yoctogram = 1e-22 centigrams)
 - [ ] Yoctograms to Cloves
 - [ ] Yoctograms to Daltons
-- [ ] Yoctograms to Drams
-- [ ] Yoctograms to Earth Masses
+- [x] Yoctograms to Drams (1 yoctogram ≈ 5.6438e-25 drams)
+- [x] Yoctograms to Earth Masses (1 yoctogram ≈ 1.6744e-52 Earth masses)
 - [x] Yoctograms to Femtograms (1 yoctogram = 1e-9 femtograms)
 - [ ] Yoctograms to Gamma (mass)
-- [ ] Yoctograms to Grains
+- [x] Yoctograms to Grains (1 yoctogram ≈ 1.5432e-23 grains)
 - [x] Yoctograms to Grams (1 yoctogram = 1e-24 grams)
-- [ ] Yoctograms to Hundredweight
-- [ ] Yoctograms to Hundredweight (cwt)
+- [x] Yoctograms to Hundredweight (1 yoctogram ≈ 2.2046e-29 hundredweights)
+- [x] Yoctograms to Hundredweight (cwt) (1 yoctogram ≈ 2.2046e-29 cwt)
 - [x] Yoctograms to Kilograms (1 yoctogram = 1e-27 kilograms)
-- [ ] Yoctograms to Long Tons
-- [ ] Yoctograms to Metric Tons
+- [x] Yoctograms to Long Tons (1 yoctogram ≈ 9.8421e-31 long tons)
+- [x] Yoctograms to Metric Tons (1 yoctogram = 1e-30 metric tons)
 - [x] Yoctograms to Micrograms (1 yoctogram = 1e-18 micrograms)
 - [x] Yoctograms to Milligrams (1 yoctogram = 1e-21 milligrams)
-- [ ] Yoctograms to Momme
+- [x] Yoctograms to Momme (1 yoctogram ≈ 2.6667e-25 momme)
 - [x] Yoctograms to Nanograms (1 yoctogram = 1e-15 nanograms)
 - [x] Yoctograms to Ounces (1 yoctogram ≈ 3.5274e-26 ounces)
-- [ ] Yoctograms to Pennyweights
+- [x] Yoctograms to Pennyweights (1 yoctogram ≈ 6.4301e-25 pennyweights)
 - [x] Yoctograms to Picograms (1 yoctogram = 1e-12 picograms)
-- [ ] Yoctograms to Planck Mass
+- [x] Yoctograms to Planck Mass (1 yoctogram ≈ 4.5947e-20 Planck masses)
 - [x] Yoctograms to Pounds (1 yoctogram ≈ 2.2046e-27 pounds)
-- [ ] Yoctograms to Quarters
-- [ ] Yoctograms to Scruples
-- [ ] Yoctograms to Short Tons
-- [ ] Yoctograms to Slugs
-- [ ] Yoctograms to Solar Masses
+- [x] Yoctograms to Quarters (1 yoctogram ≈ 7.8737e-29 quarters)
+- [x] Yoctograms to Scruples (1 yoctogram ≈ 7.7162e-25 scruples)
+- [x] Yoctograms to Short Tons (1 yoctogram ≈ 1.1023e-30 short tons)
+- [x] Yoctograms to Slugs (1 yoctogram ≈ 6.8522e-29 slugs)
+- [x] Yoctograms to Solar Masses (1 yoctogram ≈ 5.029e-58 solar masses)
 - [ ] Yoctograms to Stones
 - [ ] Yoctograms to Tolas
 - [ ] Yoctograms to Tons
 - [ ] Yoctograms to Troy Ounces
-- [ ] Zeptograms to Amu
-- [ ] Zeptograms to Apothecary Ounces
-- [ ] Zeptograms to Atomic Mass Units
-- [ ] Zeptograms to Attograms
-- [ ] Zeptograms to Carats
-- [ ] Zeptograms to Centigrams
+- [x] Zeptograms to Amu (1 zeptogram ≈ 602.214 amu)
+- [x] Zeptograms to Apothecary Ounces (1 zeptogram ≈ 3.215e-23 apothecary ounces)
+- [x] Zeptograms to Atomic Mass Units (1 zeptogram ≈ 602.214 atomic mass units)
+- [x] Zeptograms to Attograms (1 zeptogram = 0.001 attograms)
+- [x] Zeptograms to Carats (1 zeptogram = 5e-21 carats)
+- [x] Zeptograms to Centigrams (1 zeptogram = 1e-19 centigrams)
 - [ ] Zeptograms to Cloves
 - [ ] Zeptograms to Daltons
-- [ ] Zeptograms to Drams
-- [ ] Zeptograms to Earth Masses
+- [x] Zeptograms to Drams (1 zeptogram ≈ 5.6438e-22 drams)
+- [x] Zeptograms to Earth Masses (1 zeptogram ≈ 1.6744e-49 Earth masses)
 - [x] Zeptograms to Femtograms (1 zeptogram = 1e-6 femtograms)
 - [ ] Zeptograms to Gamma (mass)
-- [ ] Zeptograms to Grains
+- [x] Zeptograms to Grains (1 zeptogram ≈ 1.5432e-20 grains)
 - [x] Zeptograms to Grams (1 zeptogram = 1e-21 grams)
-- [ ] Zeptograms to Hundredweight
-- [ ] Zeptograms to Hundredweight (cwt)
+- [x] Zeptograms to Hundredweight (1 zeptogram ≈ 2.2046e-26 hundredweights)
+- [x] Zeptograms to Hundredweight (cwt) (1 zeptogram ≈ 2.2046e-26 cwt)
 - [x] Zeptograms to Kilograms (1 zeptogram = 1e-24 kilograms)
-- [ ] Zeptograms to Long Tons
-- [ ] Zeptograms to Metric Tons
+- [x] Zeptograms to Long Tons (1 zeptogram ≈ 9.8421e-28 long tons)
+- [x] Zeptograms to Metric Tons (1 zeptogram = 1e-27 metric tons)
 - [x] Zeptograms to Micrograms (1 zeptogram = 1e-15 micrograms)
 - [x] Zeptograms to Milligrams (1 zeptogram = 1e-18 milligrams)
 - [ ] Zeptograms to Momme
 - [x] Zeptograms to Nanograms (1 zeptogram = 1e-12 nanograms)
 - [x] Zeptograms to Ounces (1 zeptogram ≈ 3.5274e-23 ounces)
-- [ ] Zeptograms to Pennyweights
+- [x] Zeptograms to Pennyweights (1 zeptogram ≈ 6.4301e-22 pennyweights)
 - [x] Zeptograms to Picograms (1 zeptogram = 1e-9 picograms)
-- [ ] Zeptograms to Planck Mass
+- [x] Zeptograms to Planck Mass (1 zeptogram ≈ 4.5947e-17 Planck masses)
 - [x] Zeptograms to Pounds (1 zeptogram ≈ 2.2046e-24 pounds)
-- [ ] Zeptograms to Quarters
-- [ ] Zeptograms to Scruples
-- [ ] Zeptograms to Short Tons
-- [ ] Zeptograms to Slugs
-- [ ] Zeptograms to Solar Masses
+- [x] Zeptograms to Quarters (1 zeptogram ≈ 7.8737e-26 quarters)
+- [x] Zeptograms to Scruples (1 zeptogram ≈ 7.7162e-22 scruples)
+- [x] Zeptograms to Short Tons (1 zeptogram ≈ 1.1023e-27 short tons)
+- [x] Zeptograms to Slugs (1 zeptogram ≈ 6.8522e-26 slugs)
+- [x] Zeptograms to Solar Masses (1 zeptogram ≈ 5.029e-55 solar masses)
 - [ ] Zeptograms to Stones
 - [ ] Zeptograms to Tolas
 - [ ] Zeptograms to Tons
diff --git a/hdyc-svelte/src/lib/data/calculators.ts b/hdyc-svelte/src/lib/data/calculators.ts
index 2b8664f..c2fc9a4 100644
--- a/hdyc-svelte/src/lib/data/calculators.ts
+++ b/hdyc-svelte/src/lib/data/calculators.ts
@@ -1439,6 +1439,27 @@ export const calculators: CalculatorDef[] = [
   {"slug": "yoctograms-to-kilograms", "name": "Yoctograms to Kilograms", "category": "weight", "type": "standard", "teaser": "Express a yoctogram as a slice of a kilogram.", "labels": {"in1": "Yoctograms", "in2": "Kilograms"}, "factor": 1e-27},
   {"slug": "yoctograms-to-ounces", "name": "Yoctograms to Ounces", "category": "weight", "type": "standard", "teaser": "Convert yoctograms into ounces to contextualize minute masses.", "labels": {"in1": "Yoctograms", "in2": "Ounces"}, "factor": 3.527396194958041e-26},
   {"slug": "yoctograms-to-pounds", "name": "Yoctograms to Pounds", "category": "weight", "type": "standard", "teaser": "See how many pounds a yoctogram of mass amounts to.", "labels": {"in1": "Yoctograms", "in2": "Pounds"}, "factor": 2.2046226218487758e-27},
+  {"slug": "yoctograms-to-amu", "name": "Yoctograms to Amu", "category": "weight", "type": "standard", "teaser": "Convert yoctogram-scale masses into atomic mass units for molecular counts.", "labels": {"in1": "Yoctograms", "in2": "Amu"}, "factor": 0.602214076208},
+  {"slug": "yoctograms-to-atomic-mass-units", "name": "Yoctograms to Atomic Mass Units", "category": "weight", "type": "standard", "teaser": "Another label for counting particle masses from yoctograms.", "labels": {"in1": "Yoctograms", "in2": "Atomic Mass Units"}, "factor": 0.602214076208},
+  {"slug": "yoctograms-to-apothecary-ounces", "name": "Yoctograms to Apothecary Ounces", "category": "weight", "type": "standard", "teaser": "Express super-small masses as apothecary ounces for pharmacy history.", "labels": {"in1": "Yoctograms", "in2": "Apothecary Ounces"}, "factor": 3.21507465686e-26},
+  {"slug": "yoctograms-to-attograms", "name": "Yoctograms to Attograms", "category": "weight", "type": "standard", "teaser": "Bridge yoctograms to attograms when working in sub-attogram refinements.", "labels": {"in1": "Yoctograms", "in2": "Attograms"}, "factor": 1e-06},
+  {"slug": "yoctograms-to-carats", "name": "Yoctograms to Carats", "category": "weight", "type": "standard", "teaser": "Translate yoctograms into carats when sizing gem-scale masses.", "labels": {"in1": "Yoctograms", "in2": "Carats"}, "factor": 5e-24},
+  {"slug": "yoctograms-to-centigrams", "name": "Yoctograms to Centigrams", "category": "weight", "type": "standard", "teaser": "Put yoctograms in terms of centigrams for micro-precision weight notes.", "labels": {"in1": "Yoctograms", "in2": "Centigrams"}, "factor": 1e-22},
+  {"slug": "yoctograms-to-drams", "name": "Yoctograms to Drams", "category": "weight", "type": "standard", "teaser": "Compare yoctogram masses with drams used in detailed apothecary recipes.", "labels": {"in1": "Yoctograms", "in2": "Drams"}, "factor": 5.64383391193e-25},
+  {"slug": "yoctograms-to-earth-masses", "name": "Yoctograms to Earth Masses", "category": "weight", "type": "standard", "teaser": "Place yoctograms on the cosmic scale by converting into Earth masses.", "labels": {"in1": "Yoctograms", "in2": "Earth Masses"}, "factor": 1.67437717355e-52},
+  {"slug": "yoctograms-to-grains", "name": "Yoctograms to Grains", "category": "weight", "type": "standard", "teaser": "Convert yoctograms into grains for fine-grained mass tracking.", "labels": {"in1": "Yoctograms", "in2": "Grains"}, "factor": 1.54323583529e-23},
+  {"slug": "yoctograms-to-hundredweight", "name": "Yoctograms to Hundredweight", "category": "weight", "type": "standard", "teaser": "Express yoctograms as US hundredweights for larger-scale intuition.", "labels": {"in1": "Yoctograms", "in2": "Hundredweight"}, "factor": 2.20462442018e-29},
+  {"slug": "yoctograms-to-hundredweight-cwt", "name": "Yoctograms to Hundredweight (cwt)", "category": "weight", "type": "standard", "teaser": "Keep the cwt shorthand when converting yoctograms into hundredweights.", "labels": {"in1": "Yoctograms", "in2": "Hundredweight (cwt)"}, "factor": 2.20462442018e-29},
+  {"slug": "yoctograms-to-long-tons", "name": "Yoctograms to Long Tons", "category": "weight", "type": "standard", "teaser": "Scale yoctogram counts into UK long tons for shipping specs.", "labels": {"in1": "Yoctograms", "in2": "Long Tons"}, "factor": 9.84206527611e-31},
+  {"slug": "yoctograms-to-metric-tons", "name": "Yoctograms to Metric Tons", "category": "weight", "type": "standard", "teaser": "Express yoctograms as metric tons for SI-compatible summaries.", "labels": {"in1": "Yoctograms", "in2": "Metric Tons"}, "factor": 1e-30},
+  {"slug": "yoctograms-to-momme", "name": "Yoctograms to Momme", "category": "weight", "type": "standard", "teaser": "Convert yoctograms into momme when dealing with silk fabric weights.", "labels": {"in1": "Yoctograms", "in2": "Momme"}, "factor": 2.66666666667e-25},
+  {"slug": "yoctograms-to-pennyweights", "name": "Yoctograms to Pennyweights", "category": "weight", "type": "standard", "teaser": "Translate yoctograms into pennyweights for jewelers referencing minute masses.", "labels": {"in1": "Yoctograms", "in2": "Pennyweights"}, "factor": 6.43014931373e-25},
+  {"slug": "yoctograms-to-planck-mass", "name": "Yoctograms to Planck Mass", "category": "weight", "type": "standard", "teaser": "Push yoctograms toward Planck-mass units for fundamental physics comparisons.", "labels": {"in1": "Yoctograms", "in2": "Planck Mass"}, "factor": 4.59467183475e-20},
+  {"slug": "yoctograms-to-quarters", "name": "Yoctograms to Quarters", "category": "weight", "type": "standard", "teaser": "Convert microscopic yoctograms into quarters to understand historic lot sizes.", "labels": {"in1": "Yoctograms", "in2": "Quarters"}, "factor": 7.87365222089e-29},
+  {"slug": "yoctograms-to-scruples", "name": "Yoctograms to Scruples", "category": "weight", "type": "standard", "teaser": "Express yoctograms in scruples when bridging to classic troy units.", "labels": {"in1": "Yoctograms", "in2": "Scruples"}, "factor": 7.71617917647e-25},
+  {"slug": "yoctograms-to-short-tons", "name": "Yoctograms to Short Tons", "category": "weight", "type": "standard", "teaser": "Scale yoctograms up to short tons for bulk weight checks.", "labels": {"in1": "Yoctograms", "in2": "Short Tons"}, "factor": 1.10231131092e-30},
+  {"slug": "yoctograms-to-slugs", "name": "Yoctograms to Slugs", "category": "weight", "type": "standard", "teaser": "Translate yoctograms into slugs when referencing engineering mass units.", "labels": {"in1": "Yoctograms", "in2": "Slugs"}, "factor": 6.85217658554e-29},
+  {"slug": "yoctograms-to-solar-masses", "name": "Yoctograms to Solar Masses", "category": "weight", "type": "standard", "teaser": "Compare yoctogram probes with the mass of the Sun.", "labels": {"in1": "Yoctograms", "in2": "Solar Masses"}, "factor": 5.02899213969e-58},
   {"slug": "zeptograms-to-grams", "name": "Zeptograms to Grams", "category": "weight", "type": "standard", "teaser": "Convert a zeptogram mass into grams.", "labels": {"in1": "Zeptograms", "in2": "Grams"}, "factor": 1e-21},
   {"slug": "zeptograms-to-micrograms", "name": "Zeptograms to Micrograms", "category": "weight", "type": "standard", "teaser": "Express a zeptogram as micrograms.", "labels": {"in1": "Zeptograms", "in2": "Micrograms"}, "factor": 1e-15},
   {"slug": "zeptograms-to-nanograms", "name": "Zeptograms to Nanograms", "category": "weight", "type": "standard", "teaser": "Translate zeptograms into nanograms.", "labels": {"in1": "Zeptograms", "in2": "Nanograms"}, "factor": 1e-12},
@@ -1448,6 +1469,27 @@ export const calculators: CalculatorDef[] = [
   {"slug": "zeptograms-to-kilograms", "name": "Zeptograms to Kilograms", "category": "weight", "type": "standard", "teaser": "Express a zeptogram as part of a kilogram.", "labels": {"in1": "Zeptograms", "in2": "Kilograms"}, "factor": 1e-24},
   {"slug": "zeptograms-to-ounces", "name": "Zeptograms to Ounces", "category": "weight", "type": "standard", "teaser": "Convert zeptograms into ounces for ultra-small weights.", "labels": {"in1": "Zeptograms", "in2": "Ounces"}, "factor": 3.5273961949580413e-23},
   {"slug": "zeptograms-to-pounds", "name": "Zeptograms to Pounds", "category": "weight", "type": "standard", "teaser": "See how many pounds a zeptogram equals.", "labels": {"in1": "Zeptograms", "in2": "Pounds"}, "factor": 2.204622621848776e-24},
+  {"slug": "zeptograms-to-amu", "name": "Zeptograms to Amu", "category": "weight", "type": "standard", "teaser": "Convert zeptogram-scale masses into atomic mass units for molecular counts.", "labels": {"in1": "Zeptograms", "in2": "Amu"}, "factor": 602.214076208},
+  {"slug": "zeptograms-to-atomic-mass-units", "name": "Zeptograms to Atomic Mass Units", "category": "weight", "type": "standard", "teaser": "Another label for counting particle masses from zeptograms.", "labels": {"in1": "Zeptograms", "in2": "Atomic Mass Units"}, "factor": 602.214076208},
+  {"slug": "zeptograms-to-apothecary-ounces", "name": "Zeptograms to Apothecary Ounces", "category": "weight", "type": "standard", "teaser": "Express tiny masses as apothecary ounces for historic pharmacy tables.", "labels": {"in1": "Zeptograms", "in2": "Apothecary Ounces"}, "factor": 3.21507465686e-23},
+  {"slug": "zeptograms-to-attograms", "name": "Zeptograms to Attograms", "category": "weight", "type": "standard", "teaser": "Bridge zeptograms to attograms when dealing with close sub-attogram scales.", "labels": {"in1": "Zeptograms", "in2": "Attograms"}, "factor": 0.001},
+  {"slug": "zeptograms-to-carats", "name": "Zeptograms to Carats", "category": "weight", "type": "standard", "teaser": "Translate zeptograms into carats for gem-scale microweights.", "labels": {"in1": "Zeptograms", "in2": "Carats"}, "factor": 5e-21},
+  {"slug": "zeptograms-to-centigrams", "name": "Zeptograms to Centigrams", "category": "weight", "type": "standard", "teaser": "Put zeptograms into terms of centigrams for micro-metric comparisons.", "labels": {"in1": "Zeptograms", "in2": "Centigrams"}, "factor": 1e-19},
+  {"slug": "zeptograms-to-drams", "name": "Zeptograms to Drams", "category": "weight", "type": "standard", "teaser": "Compare zeptogram masses with drams for detailed apothecary conversions.", "labels": {"in1": "Zeptograms", "in2": "Drams"}, "factor": 5.64383391193e-22},
+  {"slug": "zeptograms-to-earth-masses", "name": "Zeptograms to Earth Masses", "category": "weight", "type": "standard", "teaser": "Place zeptogram probes on the cosmic chart by converting into Earth masses.", "labels": {"in1": "Zeptograms", "in2": "Earth Masses"}, "factor": 1.67437717355e-49},
+  {"slug": "zeptograms-to-grains", "name": "Zeptograms to Grains", "category": "weight", "type": "standard", "teaser": "Convert zeptograms into grains for precise mass notes.", "labels": {"in1": "Zeptograms", "in2": "Grains"}, "factor": 1.54323583529e-20},
+  {"slug": "zeptograms-to-hundredweight", "name": "Zeptograms to Hundredweight", "category": "weight", "type": "standard", "teaser": "Express zeptogram values as US hundredweights for large-scale comparisons.", "labels": {"in1": "Zeptograms", "in2": "Hundredweight"}, "factor": 2.20462442018e-26},
+  {"slug": "zeptograms-to-hundredweight-cwt", "name": "Zeptograms to Hundredweight (cwt)", "category": "weight", "type": "standard", "teaser": "Keep the cwt shorthand when converting zeptograms into hundredweights.", "labels": {"in1": "Zeptograms", "in2": "Hundredweight (cwt)"}, "factor": 2.20462442018e-26},
+  {"slug": "zeptograms-to-long-tons", "name": "Zeptograms to Long Tons", "category": "weight", "type": "standard", "teaser": "Scale zeptograms into UK long tons for shipping approximations.", "labels": {"in1": "Zeptograms", "in2": "Long Tons"}, "factor": 9.84206527611e-28},
+  {"slug": "zeptograms-to-metric-tons", "name": "Zeptograms to Metric Tons", "category": "weight", "type": "standard", "teaser": "Express zeptograms as metric tons for SI-friendly summaries.", "labels": {"in1": "Zeptograms", "in2": "Metric Tons"}, "factor": 1e-27},
+  {"slug": "zeptograms-to-momme", "name": "Zeptograms to Momme", "category": "weight", "type": "standard", "teaser": "Convert zeptograms into momme when working with silk-weight numbers.", "labels": {"in1": "Zeptograms", "in2": "Momme"}, "factor": 2.66666666667e-22},
+  {"slug": "zeptograms-to-pennyweights", "name": "Zeptograms to Pennyweights", "category": "weight", "type": "standard", "teaser": "Translate zeptograms into pennyweights for jewelers measuring minute weights.", "labels": {"in1": "Zeptograms", "in2": "Pennyweights"}, "factor": 6.43014931373e-22},
+  {"slug": "zeptograms-to-planck-mass", "name": "Zeptograms to Planck Mass", "category": "weight", "type": "standard", "teaser": "Push zeptograms toward Planck-mass units for fundamental physics comparisons.", "labels": {"in1": "Zeptograms", "in2": "Planck Mass"}, "factor": 4.59467183475e-17},
+  {"slug": "zeptograms-to-quarters", "name": "Zeptograms to Quarters", "category": "weight", "type": "standard", "teaser": "Convert zeptograms into quarters to contextualize old weight lots.", "labels": {"in1": "Zeptograms", "in2": "Quarters"}, "factor": 7.87365222089e-26},
+  {"slug": "zeptograms-to-scruples", "name": "Zeptograms to Scruples", "category": "weight", "type": "standard", "teaser": "Express zeptograms in scruples when bridging to classic troy units.", "labels": {"in1": "Zeptograms", "in2": "Scruples"}, "factor": 7.71617917647e-22},
+  {"slug": "zeptograms-to-short-tons", "name": "Zeptograms to Short Tons", "category": "weight", "type": "standard", "teaser": "Scale zeptograms into short tons for bulk weight comparisons.", "labels": {"in1": "Zeptograms", "in2": "Short Tons"}, "factor": 1.10231131092e-27},
+  {"slug": "zeptograms-to-slugs", "name": "Zeptograms to Slugs", "category": "weight", "type": "standard", "teaser": "Translate zeptograms into slugs for engineering mass references.", "labels": {"in1": "Zeptograms", "in2": "Slugs"}, "factor": 6.85217658554e-26},
+  {"slug": "zeptograms-to-solar-masses", "name": "Zeptograms to Solar Masses", "category": "weight", "type": "standard", "teaser": "Compare zeptograms with the mass of the Sun.", "labels": {"in1": "Zeptograms", "in2": "Solar Masses"}, "factor": 5.02899213969e-55},
   {"slug": "minutes-to-days", "name": "Minutes to Days", "category": "time", "type": "standard", "teaser": "See how minutes accumulate into days.", "labels": {"in1": "Minutes", "in2": "Days"}, "factor": 0.0006944444444444444},
   {"slug": "mmhg-to-bar", "name": "mmHg to Bar", "category": "pressure", "type": "standard", "teaser": "Translate millimeters of mercury into bars for pressure specs.", "labels": {"in1": "mmHg", "in2": "Bar"}, "factor": 0.00133322368421},
   {"slug": "mmhg-to-psi", "name": "mmHg to PSI", "category": "pressure", "type": "standard", "teaser": "Express blood pressure in PSI instead of mmHg.", "labels": {"in1": "mmHg", "in2": "PSI"}, "factor": 0.019336776, "hidden": true},