Convert Carats to Slugs
1 carat is 0.0000137 slug. One carat is exactly 0.0000137043531714 slugs.
One carat is 1.3704 × 10^-5 slugs. To convert carats to slugs, multiply by 1.3704 × 10^-5; to go the other way, divide by 1.3704 × 10^-5 or multiply by 72969.515. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. Exactly 200 milligrams, fixed by international agreement in 1907 after centuries of local carats.
Factor checked against the defining standard · How we check
- Carats × 1.3704 × 10^-5
1 * 0.00001370 slug
1 carat in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 0.00705479239 oz | × 0.00705479238992 |
| pounds | 0.0004409245244 lb | × 0.00044092452437 |
| stone | 0.00003149460888 st | × 0.0000314946088836 |
| US tons | 0.0000002204622622 ton | × 0.000000220462262185 |
| micrograms | 200,000 mcg | × 200,000 |
| milligrams | 200 mg | × 200 |
| centigrams | 20 cg | × 20 |
| grams | 0.2 g | × 0.2 |
| kilograms | 0.0002 kg | × 0.0002 |
| slugs | 0.00001370435317 slug | × 0.0000137043531714 |
| tonnes | 0.0000002 t | × 0.0000002 |
| carats (as entered) | 1 ct | — |
| troy ounces | 0.006430149314 ozt | × 0.00643014931373 |
| grains | 3.086471671 gr | × 3.08647167059 |
| long tons | 0.0000001968413055 LT | × 0.000000196841305522 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert carats to slugs? The converter and the working
- 1.Take the measurement in carats.
- 2.Multiply by 1.3704 × 10^-5 — that is how many slugs fit in one carat.
- 3.To go back the other way, divide by 1.3704 × 10^-5, or multiply by 72969.515.
Worked example: 25 carats to slugs
- Formula
- ct × 1.3704 × 10^-5 = slug
- Arithmetic
- 25 × 1.3704 × 10^-5 = 0.0003426 slug
- Answer
- 25 ct = 0.0003426 slug
The factor is rounded for display; the figure above is computed from the full value.
Carats to slugs conversion table
| Carats | Slugs |
|---|---|
| 1 ct | 0.0000137 slug |
| 2 ct | 0.00002741 slug |
| 3 ct | 0.00004111 slug |
| 4 ct | 0.00005482 slug |
| 5 ct | 0.00006852 slug |
| 6 ct | 0.00008223 slug |
| 7 ct | 0.00009593 slug |
| 8 ct | 0.0001096 slug |
| 9 ct | 0.0001233 slug |
| 10 ct | 0.000137 slug |
| 12 ct | 0.0001645 slug |
| 15 ct | 0.0002056 slug |
| 20 ct | 0.0002741 slug |
| 25 ct | 0.0003426 slug |
| 50 ct | 0.0006852 slug |
| 100 ct | 0.00137 slug |
| 200 ct | 0.002741 slug |
| 300 ct | 0.004111 slug |
| 500 ct | 0.01 slug |
| 1000 ct | 0.01 slug |
| 2000 ct | 0.03 slug |
| 5000 ct | 0.07 slug |
| 10000 ct | 0.14 slug |
What is a carat?
Exactly 200 milligrams, fixed by international agreement in 1907 after centuries of local carats. It weighs a gemstone; the karat that grades gold is a different word for a different thing — purity in twenty-fourths.
What is a slug?
The mass that one pound-force accelerates at one foot per second squared — 32.174 pounds. It exists so that F = ma works in US customary units without a conversion constant, and it is why American engineering statics is not simply pounds.
How many slugs are in a carat?
One carat is 1.3704 × 10^-5 slugs. Going the other way, one slug is 72969.515 carats. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every weight unit here
The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a carat.
Cite this page
- APA
- Rule Calculator. (2026). Convert Carats to slugs. Rule Calculator. https://rulecalculators.com/convert/carat-to-slug
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- Chicago
- Rule Calculator. "Convert Carats to slugs." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/carat-to-slug.
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Questions people actually ask
- How many slugs are in a carat?
- 1.3704 × 10^-5. The mass that one pound-force accelerates at one foot per second squared — 32.174 pounds. It exists so that F = ma works in US customary units without a conversion constant, and it is why American engineering statics is not simply pounds.
- How do I convert slugs back to carats?
- Divide by 1.3704 × 10^-5, or multiply by 72969.515 — they are the same operation.
Other weight conversions
Slugs to carats — the same conversion the other way.