How to convert stone to kilograms
Formula: kg = st ÷ 0.157473044. Worked example: 10 st = 63.50293 kg. Quick estimate: multiply by about 6.4 — the error is 0.78%, fine for everyday use but not for engineering or shopping by exact size.
About these units
The stone is a British unit equal to exactly 14 pounds, or 6.35029318 kg. In the UK and Ireland body weight is commonly given in stones and pounds, for example “11 st 4 lb”.
Category: weight. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of weight open the full unit converter, or use the reverse page — kilograms to stone.