A UK stone is defined as exactly 14 pounds — a fixed weight conversion commonly needed when comparing UK body-weight figures to US pounds.
How it works
Multiplying stone by 14 gives pounds; dividing pounds by 14 gives stone back. Type into either field and the other updates instantly.
What this does not include
This does not include kilograms — for that metric conversion, use this site’s kg-to-lbs calculator instead.
How to use this calculator
- Enter a value in either stone or pounds — the other field fills in automatically.
Frequently asked questions
Where is the stone commonly used?
The UK and Ireland commonly express body weight in stone, while the US uses pounds — this conversion bridges the two for the same measurement.
Why is a stone exactly 14 pounds?
It’s a long-standing definitional relationship within the British imperial weight system, unchanged for centuries.
Can this handle fractional stone, like 11.5 stone?
Yes — entering 11.5 stone converts to exactly 161 pounds, and any fractional value works the same way in both directions.
