Pounds to Carats
An instant pounds-to-carats converter, with the formula and a reference table below.
| Pounds | Carats |
|---|---|
| 1 lb | 2267.96185 ct |
| 2 lb | 4535.9237 ct |
| 3 lb | 6803.88555 ct |
| 5 lb | 11339.80925 ct |
| 10 lb | 22679.6185 ct |
| 25 lb | 56699.04625 ct |
| 50 lb | 113398.0925 ct |
| 100 lb | 226796.185 ct |
How to use
- Enter a value in the Pounds field.
- The Carats figure appears immediately — no button to press.
- Typing in the Carats field converts back to Pounds the same way.
- Use the reference table for the values that come up most often.
Pounds to Carats formula
To convert pounds to carats, multiply by 2267.96185.
ct = lb × 2267.96185
Why this factor: the pound and the carat are both defined against the kilogram, so dividing one definition by the other gives 2267.96185 directly. Both definitions are set out in full below.
To go the other way, divide by 2267.96185 — or use the Carats to Pounds converter, which is the same calculation reversed.
Worked example
Take 2 lb and multiply by the factor 2267.96185: the result is 4535.9237 ct.
2 lb × 2267.96185 = 4535.9237 ct
The converter above does this for any value you type, in either direction.
What is a pound?
The pound is the primary unit of weight in the United States.
Definition: Exactly 0.45359237 kilogram since the 1959 International Yard and Pound Agreement — an exact definition, not a rounded one.
Where it is used: Body weight, grocery and produce pricing, shipping rates, and gym weights in the US.
Worth knowing: This is the avoirdupois pound. The troy pound used for precious metals is different (about 373 g).
What is a carat?
A metric carat is the standard mass unit for gemstones.
Definition: Exactly 200 milligrams — that is, 0.2 gram — standardized internationally in 1907.
Where it is used: Diamond and gemstone weight throughout the jewellery trade.
Worth knowing: Do not confuse the carat (gemstone mass) with the karat (gold purity out of 24). A 1-carat diamond and 24-karat gold measure entirely different things.
Pounds vs Carats
The pound is an imperial unit while the carat is a specialized unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many carats are in a pound?
One pound equals 2267.96185 carats.
What is the formula to convert pounds to carats?
Multiply the number of pounds by 2267.96185. To reverse it, divide by 2267.96185 instead.
How do I convert carats back to pounds?
Divide by 2267.96185, which is the same as multiplying by 0.000440924524.
How many carats are in 10 pounds?
10 lb works out to 22679.6185 ct.
Is there anything to watch out for with pounds?
This is the avoirdupois pound. The troy pound used for precious metals is different (about 373 g).
How is the pound defined?
Exactly 0.45359237 kilogram since the 1959 International Yard and Pound Agreement — an exact definition, not a rounded one.