Stone to KG Converter

Convert stone to kilograms instantly — understand British weight figures in the kg you actually use.

Formula used

How to use this converter

  1. Type the value you want to convert in the first box.
  2. Pick the starting unit in the From box and the target unit in the To box.
  3. The answer appears instantly — change any box and it recalculates on its own.

The formula

One stone equals 6.35029 kilograms (14 × 0.45359237). So kg = stone × 6.35029. Example: 11 stone × 6.35029 = 69.85 kg.

Quick conversion table

StoneKilogramsNote
8 st50.80 kgLight
10 st63.50 kgAverage
11 st69.85 kgCommon
12 st76.20 kgAbove average
15 st95.25 kgHeavy

Making sense of UK numbers

When UK news mentions someone weighing 12 stone, or a British recipe lists flour in stones (rare but it happens), Indians need kg to picture it. Rough rule of thumb: 1 stone is a little over 6⅓ kg — 10 stone ≈ 63.5 kg.

Frequently asked questions

How many kg is 1 stone?

6.35029 kg — about six and a third kilos.

What is 10 stone in kg?

63.50 kg.

What is the stone to kg formula?

Multiply by 6.35029: kg = stone × 6.35029.

How many stone is 70 kg?

70 ÷ 6.35029 = 11.02 stone. Flip the units above to convert.