UnitConvertStone to Pounds
1 st = 14 lb
Stone to pounds is a conversion between two imperial units, often needed when a British or Irish body weight is shared with Americans, who use pounds alone. It is also useful for US fitness apps that only accept pounds. One stone is exactly 14 pounds.
When you need to convert stone to pounds
- Explaining a body weight in stone to someone in the United States
- Entering a weight on a US-made fitness tracker that only accepts pounds
- Converting historical or sporting records given in stone
- Comparing UK and US weight-loss program targets
How to convert stone to pounds
lb = st × 14
Example: 5 st = 70 lb
Common body weights in stone
| Stone (st) | Pounds (lb) |
|---|---|
| 7 st | 98 lb |
| 8 st | 112 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 11 st | 154 lb |
| 12 st | 168 lb |
| 13 st | 182 lb |
| 14 st | 196 lb |
| 15 st | 210 lb |
| 16 st | 224 lb |
Tips for converting stone to pounds
- Multiply stone by 14, then add any extra pounds. For mental math, multiply by 10, then add four times the stone.
- A weight written as 12 st 3 lb is not 12.3 st. Convert the 12 stone, then add the 3 pounds.
- A half stone is 7 lb, a useful reference when a weight is given as a decimal of stone.
Stone to Pounds conversion table
| Stone (st) | Pounds (lb) |
|---|---|
| 1 st | 14 lb |
| 2 st | 28 lb |
| 3 st | 42 lb |
| 4 st | 56 lb |
| 5 st | 70 lb |
| 6 st | 84 lb |
| 7 st | 98 lb |
| 8 st | 112 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 15 st | 210 lb |
| 20 st | 280 lb |
| 25 st | 350 lb |
| 30 st | 420 lb |
| 40 st | 560 lb |
| 50 st | 700 lb |
| 75 st | 1,050 lb |
| 100 st | 1,400 lb |
| 250 st | 3,500 lb |
| 500 st | 7,000 lb |
| 1,000 st | 14,000 lb |
About the units
Stone: The stone is a British unit of mass equal to 14 pounds, or about 6.35 kilograms, still used for body weight in the UK and Ireland.
Pounds: The pound (avoirdupois) is a US customary and imperial unit of mass defined as exactly 0.45359237 kilograms.
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Frequently asked questions
How many pounds are in 1 stone?
1 stone equals 14 pounds.
How many stone are in 1 pound?
1 pound equals 0.07142857 stone.
How do I convert stone to pounds?
Use the formula lb = st × 14.
What is 10 stone in pounds?
10 stone equals 140 pounds.
Related conversions
Sources
Conversion factors use the exact definitions published by NIST and the BIPM, and are checked by automated tests against those definitions.
- NIST Special Publication 811: Guide for the Use of the International System of Units
- BIPM: The International System of Units (SI Brochure)
- NIST Handbook 44, Appendix C: General Tables of Units of Measurement
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