DailyCalc

Stone to Kilograms (st to kg)

1 st = 6.35029318 kg. Type any value to convert it.

1 stone =

6.35029318 kg

kilograms

Conversion factor
1 st = 6.35029318 kg
Stone + pounds
1 st 0 lb
Pounds + ounces
14 lb 0 oz

Fix the highlighted field to update the result.

Show in all common units
1 st in other units
UnitValue
milligram (mg)6,350,293.18 mg
gram (g)6,350.29318 g
kilogram (kg)6.35029318 kg
tonne (metric ton) (t)0.00635029318 t
ounce (oz)224 oz
pound (lb)14 lb
stone (st)1 st
short ton (US) (US ton)0.007 US ton
long ton (UK) (UK ton)0.00625 UK ton

How to convert stone to kilograms

1 st = 6.35029318 kg

1 st = 6.35029318 kg exactly: the stone is 14 pounds (Weights and Measures Act 1985) and the pound is 0.45359237 kg. Convert any extra pounds at 0.45359237 kg each.

Examples

  • 11 st = 69.853225 kg: A body weight given in whole stones
  • 15 st = 95.254398 kg: A reading on an older UK bathroom scale

Stone to kg chart

Stone to kilograms
Stone (st)Kilograms (kg)
1 st6.3502932 kg
2 st12.700586 kg
3 st19.05088 kg
4 st25.401173 kg
5 st31.751466 kg
10 st63.502932 kg
11 st69.853225 kg
15 st95.254398 kg
20 st127.00586 kg
25 st158.75733 kg
50 st317.51466 kg
75 st476.27199 kg
100 st635.02932 kg

Common mistakes

  • People sometimes write 12.7 when they mean 12 st 7 lb. As a decimal, 12.7 st is 12 st 9.8 lb, about 80.65 kg.

Frequently asked questions

What is 11 stone in kg?

11 stone is about 69.85 kg. Multiply 11 by 6.35029 to get it.

How do I convert 12 stone 7 lb to kg?

Turn it into pounds first: 12 × 14 + 7 = 175 lb. Multiply by 0.45359237 to get about 79.38 kg.

Is 6.35 kg per stone accurate enough?

Yes for everyday use. The exact figure is 6.35029318 kg, so the rounded factor is off by less than 0.01 kg even at 15 stone.