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Convert stone to lbs

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U.S. Stone

Definition
The U.S. stone is a traditional mass measure set at exactly 12.5 pounds (lb). While the British stone equals 14 lb, the American variant historically settled on 12.5 lb for certain regional and agricultural uses.

Origins
Stones have been used since antiquity as balance counterweights. In the United States, a 12.5 lb “stone” emerged in localized trading systems before the widespread adoption of standardized Imperial and metric units.

Modern Use
Today the U.S. stone is uncommon—found mainly in historical records or niche industries—but this converter lets you instantly translate between U.S. stones and pounds.

Stone (US) → Pound Conversion Table

Stones (US)Pounds (lb)
0.01 stone (US)0.125 lb
0.1 stone (US)1.25 lb
1 stone (US)12.5 lb
2 stones (US)25 lb
3 stones (US)37.5 lb
5 stones (US)62.5 lb
10 stones (US)125 lb
20 stones (US)250 lb
50 stones (US)625 lb
100 stones (US)1250 lb
1000 stones (US)12500 lb

How to Convert

  • 1 stone (US) = 12.5 lb

  • 1 lb = 0.08 stone (US)

Example
To convert 15 stone (US) to pounds:

15 stone (US) × 12.5 lb/stone = 187.5 lb

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