Why the UK still uses stones
In everyday life, people in the UK often describe body weight using stones and pounds. In healthcare, fitness apps and many international contexts, the same value is usually recorded in kilograms. This converter helps switch between the two systems quickly without rounding surprises.
This page is designed for simple conversion only. It does not judge whether a weight is good, bad, healthy or unhealthy.
Quick reference chart
| Stones & pounds | Total pounds | Kilograms |
|---|---|---|
| 8 st 0 lb | 112 lb | 50.80 kg |
| 9 st 0 lb | 126 lb | 57.15 kg |
| 10 st 0 lb | 140 lb | 63.50 kg |
| 11 st 0 lb | 154 lb | 69.85 kg |
| 12 st 0 lb | 168 lb | 76.20 kg |
| 13 st 0 lb | 182 lb | 82.55 kg |
| 14 st 0 lb | 196 lb | 88.90 kg |
Formulas used
- 1 stone = 14 pounds
- 1 pound = 0.45359237 kilograms
- Total pounds = stones × 14 + pounds
- Kilograms = total pounds × 0.45359237
How many kilograms are in one stone?
One stone equals exactly 6.35029318 kilograms.
How many pounds are in one stone?
One stone equals exactly 14 pounds.
Can I convert kilograms back to stones and pounds?
Yes. Enter any kilogram value and the converter will show the equivalent stones, pounds and total pounds instantly.