Stone to Kilograms Converter
Convert Stone to Kilograms with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Stone into Kilograms instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Stone to Kilograms
How to use this calculator
- Enter the value in Stone in the input box.
- Read the result in Kilograms — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Stone amounts.
The formula
Kilograms = Stone × 6.35029
Worked example
10 st = 63.5029 kg — in full, 10 Stone converts to 63.5029 Kilograms. Body weight, luggage allowances and grocery weights are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Stone to Kilograms?
Multiply the value in Stone by 6.35029. For example, 10 Stone × 6.35029 = 63.5029 Kilograms. To go the other way, divide by 6.35029 instead — or press Swap in the converter above.
How many Kilograms are in one Stone?
One Stone equals 6.35029 Kilograms. Scaling up, 10 Stone = 63.5029 Kilograms and 100 Stone = 635.029 Kilograms. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Stone or a Kilogram?
A Stone is bigger. One Stone equals 6.35029 Kilograms, while one Kilogram is only 0.157473 Stone. So a measurement that looks larger in Kilograms is reflecting the scale difference, not an error.
What is 10 Stone in Kilograms?
10 Stone is 63.5029 Kilograms. The math is 10 × 6.35029 = 63.5029. Try any other amount in the converter above and the result updates as you type.