Stone to Kilograms
Convert stone to kilograms. One stone is exactly 14 avoirdupois pounds, which is 6.35029318 kg. This is mass, not kilogram-force.
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How to convert stone to kilograms
- Enter the mass in stone. The default is 1.
- Keep From as Stone and To as Kilograms, or pick pounds if you want st to lb.
- Read kilograms. Multiply stone by 6.35029318.
- Swap units for kilograms to stone, or open that spoke. Stone to pounds is a separate page with the exact 14 factor.
Stone
Avoirdupois mass (14 lb)
| Stone | 1 st = 14 lb exactly |
|---|---|
| Pound | 1 lb = 0.45359237 kg |
| Kilogram | 1 st = 6.35029318 kg |
| Ounce | 1 st = 224 oz |
| Reverse | Kilograms to stone uses the same constants |
| Not kgf | Kilogram-force is on the force converter |
What stone to kilograms does
British and Irish body-mass speech still uses stone. One stone is 14 pounds. The pound is 0.45359237 kg, so 14 × 0.45359237 = 6.35029318 kg exactly in this engine. A person described as 11 st is 69.85322498 kg, not a rounded 70 kg unless you round after the conversion.
The reverse URL is kilograms to stone. Stone as 14 lb only is stone to pounds. The hub is mass.
Stone to kilogram factor
kg = st × 6.35029318. st = kg / 6.35029318. lb = st × 14. The leftover pounds some people quote (11 st 6 lb) are not two fields here. Convert leftover pounds to a decimal stone (6/14) and add, or convert the whole mass to pounds first on stone to lb plus extra pounds, then to kg.
Stone, pound, and kilogram-force
Stone is a mass unit. A scale in kg still reports mass under standard gravity. Do not send a stone figure into the force converter unless you already turned it into newtons. US customary speech rarely uses stone. Metric tons and US tons remain on the table for freight, not for people.
When to convert stone to kilograms here
Turn a UK weight into kg for a form, compare stone with pounds, or swap to the kilograms to stone spoke. BMI still needs a height as well.
What this page does not do
It does not split stone and leftover pounds into two outputs. It does not compute BMI. It does not convert force. Input stays in this tab.