KG to Stone Converter
Type kilograms to get stone, written as stone and pounds the way UK scales and doctors do.
80 kg =
12.5978st
80 kilograms is 12.5978 stone.
- In stone and pounds
- 12 st 8.4 lb
- 1 kg
- 0.1575 st
- 1 st
- 6.3503 kg
How to convert kg to stone and pounds
First turn kilograms into pounds by dividing by 0.45359237, then split the pounds into stone: every 14 lb is one stone, and whatever is left over stays as pounds. Dividing the kilograms straight by 6.35029318 gives stone as a decimal, but that is not how anyone reads a weight in Britain.
For 95 kg: 95 ÷ 0.45359237 = 209.44 lb. 209.44 ÷ 14 = 14 whole stone (196 lb) with 13.44 lb remaining, so 95 kg is 14 st 13.4 lb, just short of 15 stone. In decimal stone it is 14.96 st, which is easy to misread as “14 stone 9 or 10”.
The decimal part of a stone is never the number of pounds. Multiply it by 14 to get pounds: 0.96 × 14 = 13.4.
stone = kilograms ÷ 6.35029318 (≈ kilograms × 0.157473)
- UK law defines the stone as 14 pounds, which makes it exactly 6.35029318 kg. Source: UK Weights and Measures Act 1985, Schedule 1.
How to estimate kg to stone in your head
Divide the kilograms by 6.35, or more simply multiply by 0.16 and then shave a touch off. 95 × 0.16 = 15.2, and the true figure is 14.96 st, so “about 15 stone” is right. The shortcut runs about 1.6% high.
Handy landmarks: 63.5 kg is exactly 10 stone in practice (9.9995 st), 76.2 kg is 12 stone, and 127 kg is 20 stone. Count up from the nearest one in 6.35 kg steps.
Kilograms to stone and pounds chart
Adult body weights in 5 kg steps, as stone and pounds and as decimal stone.
| Kilograms (kg) | Stone and pounds | Stone (decimal) | Pounds (lb) |
|---|---|---|---|
| 40 | 6 st 4.2 lb | 6.2989 | 88.1849 |
| 45 | 7 st 1.2 lb | 7.0863 | 99.208 |
| 50 | 7 st 12.2 lb | 7.8737 | 110.231 |
| 55 | 8 st 9.3 lb | 8.661 | 121.254 |
| 60 | 9 st 6.3 lb | 9.4484 | 132.277 |
| 65 | 10 st 3.3 lb | 10.2357 | 143.3 |
| 70 | 11 st 0.3 lb | 11.0231 | 154.324 |
| 75 | 11 st 11.3 lb | 11.8105 | 165.347 |
| 85 | 13 st 5.4 lb | 13.3852 | 187.393 |
| 90 | 14 st 2.4 lb | 14.1726 | 198.416 |
Show all 19 rowsShow fewer
| 95 | 14 st 13.4 lb | 14.9599 | 209.439 |
| 100 | 15 st 10.5 lb | 15.7473 | 220.462 |
| 105 | 16 st 7.5 lb | 16.5347 | 231.485 |
| 110 | 17 st 4.5 lb | 17.322 | 242.508 |
| 115 | 18 st 1.5 lb | 18.1094 | 253.532 |
| 120 | 18 st 12.6 lb | 18.8968 | 264.555 |
| 130 | 20 st 6.6 lb | 20.4715 | 286.601 |
| 140 | 22 st 0.6 lb | 22.0462 | 308.647 |
| 150 | 23 st 8.7 lb | 23.621 | 330.693 |
Frequently Asked Questions
What is 80 kg in stone?
80 kg is 12 st 8.4 lb (176.4 lb in total, or 12.6 stone as a decimal).
Why do people in the UK use stone?
Stone has been the customary unit for body weight in Britain and Ireland for centuries, and many people still think of their weight that way even though shops have sold by the kilogram since metrication. UK scales usually show both.
How many kg is one stone?
One stone is 6.35 kg (6.35029318 exactly). Ten stone is 63.5 kg and fifteen stone is 95.25 kg.