KG to Stone
This free kg to stone converter turns any kilogram value into the stone readings used across the UK and Ireland for body weight, updating on every keystroke.
How to use
- Type a value in kilograms into the Value box.
- The equivalent weight in stone appears instantly as you type.
- Swap the From and To selects to convert stone back to kilograms.
- Copy the full equation shown under the result into your notes or document.
Frequently asked questions
How many kg is 1 stone exactly?
One stone is 14 pounds and the pound is defined as exactly 0.45359237 kg, so 1 st = 6.35029318 kg with no rounding. Dividing kg by that factor gives the exact stone value.
What is the formula for kg to stone?
stone = kg ÷ 6.35029318. For example, 76 kg ÷ 6.35029318 = 11.96795138 st. A quick mental estimate is to divide kg by 6.35 and treat the result as slightly high.
How do I convert kg to stone and pounds?
Divide kg by 6.35029318 to get stones, keep the whole number, then multiply the fractional part by 14 for pounds. Example: 76 kg = 11.96795138 st; 0.96795138 × 14 ≈ 13.55 lb, so about 11 st 13.6 lb.
Why do the British use stone for body weight?
Stone survived in the UK and Ireland specifically for people’s weight, much like feet for height. Scales, media and everyday speech there quote stone and pounds, while medicine and sport use kilograms — which is exactly the gap this converter bridges.
Related tools
About this tool
This free kg to stone converter turns any kilogram value into the stone readings used across the UK and Ireland for body weight, updating on every keystroke. One stone is defined as exactly 14 pounds, and with the pound fixed at 0.45359237 kg that makes 1 st = 6.35029318 kg — the tool divides by this exact figure, so a 76 kg person reads 11.96795138 st, matching what a British bathroom scale would show. The full equation prints under each result so you can quote it on a medical form or a weight-loss tracker. Body weight is the classic use case: British and Irish people habitually say "eleven stone four" rather than a kilogram figure, and interpreting that conversation means converting. For a stone-and-pounds reading, take the whole stones and multiply the leftover fraction by 14 — the stone-to-lbs page does that second step directly. A handy anchor set: 50 kg ≈ 7.87 st, 70 kg ≈ 11.02 st, 90 kg ≈ 14.17 st. Everything runs locally in your browser: the numbers you type are never uploaded, stored or logged, which matters for health data. To convert the other way, swap the From and To selects and the page becomes stone to kg in one click.