To convert stone to pounds, multiply by 14. So 10 st = 140 lb and 12 st = 168 lb. One stone is defined as exactly 14 pounds in the avoirdupois system - an exact conversion with no rounding.
- Exact: 1 st = 14 lb - defined, not approximate.
- 10 st = 140 lb. 11 st = 154 lb. 12 st = 168 lb.
- Stone is used in the UK and Ireland; lbs are used in the US.
- To convert stone and pounds (e.g., 11 st 4 lb): multiply stone by 14, then add the extra pounds.
How to Use This Converter
Type any stone value in the st field and the pounds result appears instantly. You can also type in the lb field to convert back to stone. For stone and pounds (e.g., 11 st 4 lb), convert to decimal stone first: 11 + 4/14 = 11.286 st, then multiply by 14 to get 158 lb.
How Do You Convert Stone to Pounds?
Multiply stone by 14. One stone is defined as exactly 14 avoirdupois pounds - a definition that has been fixed for centuries.
$$\text{lb} = \text{st} \times 14$$
Worked examples: 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.
How Do You Convert Pounds to Stone?
Divide pounds by 14. See the dedicated pounds to stone converter for a lbs-first reference table.
$$\text{st} = \text{lb} \div 14$$
Worked examples: 126 lb = 9 st. 154 lb = 11 st. 182 lb = 13 st.
Stone to Pounds Reference Table
| Stone (st) | Pounds (lb) | Kilograms (kg) |
|---|---|---|
| 7 st | 98 lb | 44.45 kg |
| 8 st | 112 lb | 50.80 kg |
| 9 st | 126 lb | 57.15 kg |
| 10 st | 140 lb | 63.50 kg |
| 11 st | 154 lb | 69.85 kg |
| 12 st | 168 lb | 76.20 kg |
| 13 st | 182 lb | 82.55 kg |
| 14 st | 196 lb | 88.90 kg |
| 15 st | 210 lb | 95.25 kg |
| 16 st | 224 lb | 101.60 kg |
When Do You Need to Convert Stone to lbs?
- UK to US communication - UK residents reporting weight in stone to US contacts who use pounds.
- Weight limits - some UK equipment states limits in stone; US products use lbs - converting helps comparison.
- Fitness and sport - weight class limits in boxing and wrestling are sometimes given in both systems.
Frequently Asked Questions
How many pounds is 1 stone?
Exactly 14 pounds. The stone has been defined as 14 avoirdupois pounds since its standardization in medieval England. 1 st = 14 lb = 6.35029 kg.
How do you convert stone to pounds?
Multiply stone by 14. For 13.5 st: 13.5 × 14 = 189 lb. The result is exact - no rounding needed.
How many pounds is 12 stone?
12 st = 168 lb. Multiply 12 × 14 = 168. This is the equivalent of 76.2 kg - a common average male body weight in the UK.