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Stones to Kilograms Converter

Convert stones (st) to kilograms (kg) as you type — 1 st = 6.350293 kg. Switch units, change the precision or copy the result.

How to use this tool

Steps for using the Unit Converter.

  1. Enter a value in From — stones are already selected.
  2. The result in kilograms appears instantly. Change either unit to convert to anything else in weight.
  3. Use the swap button for the reverse conversion, and set the decimal places you need.
  4. Turn on Show formula to see the calculation, then copy or share the result.

Example

1 st to kg

Stone
1 st
Kilogram
kg = 1 × 6.35029318 = 6.350293 kg

Common use cases

  • Body weight in kg, lb or stone.
  • Cooking and baking with grams and ounces.
  • Shipping, luggage allowances and freight in kg and metric tons.

Stones to Kilograms conversion table

stones to kilograms
Stone (st)Kilogram (kg)
0.1 st0.635029 kg
0.5 st3.175147 kg
1 st6.350293 kg
2 st12.700586 kg
3 st19.05088 kg
4 st25.401173 kg
5 st31.751466 kg
10 st63.502932 kg
15 st95.254398 kg
stones to kilograms (continued)
Stone (st)Kilogram (kg)
20 st127.005864 kg
25 st158.75733 kg
50 st317.514659 kg
75 st476.271989 kg
100 st635.029318 kg
250 st1,587.573295 kg
500 st3,175.14659 kg
1,000 st6,350.29318 kg

Values rounded to 6 decimal places.

Related conversions

The units

Stone (st)
14 lb = exactly 6.35029318 kg. Part of the Imperial system.
Kilogram (kg)
SI base unit of mass. Part of the SI system.

How to convert stones to kilograms

Body weight in the UK and Ireland is still commonly given in stones and pounds, e.g. 11 st 4 lb; a stone is exactly 14 pounds.

To convert stones to kilograms, use kg = st × 6.35029318. One stone equals 6.350293 kilograms, and one kilogram equals 0.157473 stones.

Stone (st): 14 lb = exactly 6.35029318 kg. Kilogram (kg): SI base unit of mass.

All mass units are on the weight converter.

Limitations

  • Results are rounded to the decimal places you choose; the calculation itself keeps full precision.

Frequently asked questions

How many kilograms are in a stone?

1 st = 6.350293 kg. Multiply stones by 6.35029318 (or use kg = st × 6.35029318).

How do I convert stones to kilograms?

Use kg = st × 6.35029318. For example, 1 st = 6.3503 kg and 10 st = 63.5029 kg.

How many pounds are in a kilogram?

1 kg = 2.20462 lb. One pound is exactly 0.45359237 kg.

Are these troy ounces?

No. These are avoirdupois ounces (28.3495 g), used for food and everyday goods. Gold and silver are weighed in troy ounces of 31.1035 g.