Stone to kg●
Stone in. Kilograms out. Convert body weight in a moment.
Weight
Use a decimal point, for example 2.54. Scientific notation works too: 1e3.
Try a value
Pick an example to startThe formula
kilograms = stones (14 lb) × 6.35029318
Multiply the number of stones (14 lb) by 6.35029318 to get kilograms. To go the other way, divide by the same number.
A worked example
For 11 st, multiply 11 by 6.35029318. The result is approximately 69.853225 kg.
11 × 6.35029318 ≈ 69.853225 kg
Quick reference
Reference values are rounded to 6 decimal places. Use the converter above for other values or precision.
| Stones (14 lb) (st) | Kilograms (kg) |
|---|---|
| 1 | 6.350293 |
| 5 | 31.751466 |
| 8 | 50.802345 |
| 9 | 57.152639 |
| 10 | 63.502932 |
| 11 | 69.853225 |
| 12 | 76.203518 |
| 14 | 88.904105 |
| 16 | 101.604691 |
All equivalent units
The same value, in every supported unit.
Weight conversions
For body weight in the UK and Ireland.
Stone is still used for body weight in the United Kingdom and Ireland. One stone is exactly 14 pounds, which is 6.35029318 kilograms. If you have stone and pounds, convert the stone here and add the pounds divided by 2.2046.
Calculation details & precision
Weight conversions use kilograms as the base mass unit. One pound is exactly 0.45359237 kg and a stone is 14 lb. Metric tonnes, US short tons and UK long tons are separate units. Troy ounces and standard ounces use different definitions.
Automatic displays up to 12 significant digits. Choose 2, 4 or 6 decimal places in Precision for a shorter result. Displayed results are rounded; very large or small values use scientific notation.
Common questions
How many pounds are in a stone?
One stone is exactly 14 pounds, or 6.35029318 kilograms.
How many kilograms are in 11 stones (14 lb)?
11 st is approximately 69.853225 kg. The converter can show more significant digits or round to a chosen number of decimal places.