Convert Carats to Pounds
1 carat is 0.0004409 lb. One carat is exactly 0.00044092452437 pounds.
One carat is 4.4092 × 10^-4 pounds. To convert carats to pounds, multiply by 4.4092 × 10^-4; to go the other way, divide by 4.4092 × 10^-4 or multiply by 2267.9619. 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 × 4.4092 × 10^-4
1 * 0.00044090 lb
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 pounds? The converter and the working
- 1.Take the measurement in carats.
- 2.Multiply by 4.4092 × 10^-4 — that is how many pounds fit in one carat.
- 3.To go back the other way, divide by 4.4092 × 10^-4, or multiply by 2267.9619.
Worked example: 25 carats to pounds
- Formula
- ct × 4.4092 × 10^-4 = lb
- Arithmetic
- 25 × 4.4092 × 10^-4 = 0.01 lb
- Answer
- 25 ct = 0.01 lb
The factor is rounded for display; the figure above is computed from the full value.
Carats to pounds conversion table
| Carats | Pounds |
|---|---|
| 1 ct | 0.0004409 lb |
| 2 ct | 0.0008818 lb |
| 3 ct | 0.001323 lb |
| 4 ct | 0.001764 lb |
| 5 ct | 0.002205 lb |
| 6 ct | 0.002646 lb |
| 7 ct | 0.003086 lb |
| 8 ct | 0.003527 lb |
| 9 ct | 0.003968 lb |
| 10 ct | 0.004409 lb |
| 12 ct | 0.01 lb |
| 15 ct | 0.01 lb |
| 20 ct | 0.01 lb |
| 25 ct | 0.01 lb |
| 50 ct | 0.02 lb |
| 100 ct | 0.04 lb |
| 200 ct | 0.09 lb |
| 300 ct | 0.13 lb |
| 500 ct | 0.22 lb |
| 1000 ct | 0.44 lb |
| 2000 ct | 0.88 lb |
| 5000 ct | 2.2 lb |
| 10000 ct | 4.41 lb |
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 pound?
Exactly 0.45359237 kilograms by international agreement, and sixteen ounces.
How many pounds are in a carat?
One carat is 4.4092 × 10^-4 pounds. Going the other way, one pound is 2267.9619 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 pounds. Rule Calculator. https://rulecalculators.com/convert/carat-to-pound
- MLA
- "Convert Carats to pounds." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/carat-to-pound.
- Chicago
- Rule Calculator. "Convert Carats to pounds." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/carat-to-pound.
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Questions people actually ask
- How many pounds are in a carat?
- 4.4092 × 10^-4. Exactly 0.45359237 kilograms by international agreement, and sixteen ounces.
- How do I convert pounds back to carats?
- Divide by 4.4092 × 10^-4, or multiply by 2267.9619 — they are the same operation.
Other weight conversions
Pounds to carats — the same conversion the other way.