Stones to Pounds
Type a value in either box to convert between stones and pounds. The factor is 14.
| Stones | Pounds |
|---|---|
| 1 st | 14 lb |
| 2 st | 28 lb |
| 3 st | 42 lb |
| 5 st | 70 lb |
| 10 st | 140 lb |
| 25 st | 350 lb |
| 50 st | 700 lb |
| 100 st | 1400 lb |
How to use
- Enter a value in the Stones field.
- The Pounds figure appears immediately — no button to press.
- Typing in the Pounds field converts back to Stones the same way.
- Use the reference table for the values that come up most often.
Stones to Pounds formula
Converting stones to pounds is a single multiplication by 14.
lb = st × 14
Put another way, one stone is exactly 14 pounds.
Why this factor: the stone and the pound are both defined against the kilogram, so dividing one definition by the other gives 14 directly. Both definitions are set out in full below.
To go the other way, divide by 14 — or use the Pounds to Stones converter, which is the same calculation reversed.
Worked example
Start with 25 st. Multiply by 14 to get 350 lb.
25 st × 14 = 350 lb
The converter above does this for any value you type, in either direction.
What is a stone?
A stone is fourteen pounds, still the customary unit for body weight in Britain and Ireland.
Definition: Fourteen avoirdupois pounds, so exactly 6.35029318 kilograms.
Where it is used: Personal body weight in the UK and Ireland, where weight is usually given as stones and pounds.
Worth knowing: Effectively unused in the United States, where body weight is quoted in pounds alone.
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).
Stones vs Pounds
The stone and the pound belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many pounds are in a stone?
One stone equals 14 pounds.
What is the formula to convert stones to pounds?
Multiply the number of stones by 14. To reverse it, divide by 14 instead.
How do I convert pounds back to stones?
Divide by 14, which is the same as multiplying by 0.0714285714.
How many pounds are in 10 stones?
10 st works out to 140 lb.
Is there anything to watch out for with stones?
Effectively unused in the United States, where body weight is quoted in pounds alone.
How is the stone defined?
Fourteen avoirdupois pounds, so exactly 6.35029318 kilograms.