stone to kg Converter
Convert stone to kg instantly: 1 stone = 6.35029 kg. Free converter with the formula, a reference table and FAQs — no sign-up.
| stone | kg |
|---|
How to convert stone to kg
Enter your value
Type the number of stone you want to convert into the left box. The result in kg appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — kg to stone. Your current value carries across so you don't have to re-enter anything.
About stone and kg
stone and kg are common weight measurements.
Worked examples: stone to kg
Multiply the stone value by 6.35029 to get kg. A few quick examples:
- 5 stone × 6.35029 = 31.7515 kg
- 25 stone × 6.35029 = 158.757 kg
- 250 stone × 6.35029 = 1,587.57 kg
Related conversions
Stone to kg and pounds chart
One stone is 14 pounds, or 6.35029 kg. To convert a weight given as stones and pounds (for example 11 st 4 lb), convert the stones to pounds, add the extra pounds, then multiply the total pounds by 0.453592 to get kilograms.
| Stones | Pounds | Kilograms |
|---|---|---|
| 6 st | 84 lb | 38.1 kg |
| 7 st | 98 lb | 44.5 kg |
| 8 st | 112 lb | 50.8 kg |
| 9 st | 126 lb | 57.2 kg |
| 10 st | 140 lb | 63.5 kg |
| 11 st | 154 lb | 69.9 kg |
| 12 st | 168 lb | 76.2 kg |
| 13 st | 182 lb | 82.6 kg |
| 14 st | 196 lb | 88.9 kg |
| 15 st | 210 lb | 95.3 kg |
| 16 st | 224 lb | 101.6 kg |
| 17 st | 238 lb | 108.0 kg |
| 18 st | 252 lb | 114.3 kg |
| 19 st | 266 lb | 120.7 kg |
| 20 st | 280 lb | 127.0 kg |
A healthy weight depends on height, age and build, so there is no single stone range that suits everyone. The NHS BMI healthy weight calculator gives a range for your height.
14 lb to the stone, 6.35029 kg to the stone — Britain is the only major country still using stones for body weight. Hospital records, gym apps, and bathroom scales in the UK default to stones, often as 'st lb' (e.g. 11st 4lb).
| stone | kg |
|---|---|
| 5 | 31.75 |
| 6 | 38.1 |
| 7 | 44.45 |
| 7.5 | 47.63 |
| 8 | 50.8 |
| 9 | 57.15 |
Frequently asked questions
How do I convert stone to kg?
To convert stone to kg, multiply by 6.35029. Or use the calculator above for instant results.
How many kg are in 1 stone?
1 stone equals 6.35029 kg.
Is the stone to kg converter free?
Yes, the stone to kg converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.