Stone (st) to Kilograms (kg) Converter
Enter a value to instantly convert between weight units.
1 Stone = 6.3503 Kilogram
Key Formulas
Kilogram → Pound
lb = kg × 2.20462Pound → Kilogram
kg = lb × 0.453592Gram → Ounce
oz = g × 0.035274Ounce → Gram
g = oz × 28.3495Formula
kg = st × (6.35029318 / 1)One stone is 6.35029318 kilograms, about 6.35 kg, so multiply stone by 6.35029318. The stone is 14 pounds under NIST Handbook 44, and 14 times the 0.45359237 kg pound from NIST footnote 22 gives the factor. A body weight in stone may need restating in kilograms for a form. 11 st is about 69.85 kg. A mixed reading such as 11 st 4 lb needs the pounds converted first.
Source: NIST exact and named mass definitions (definition-derived arithmetic)
Reviewed by the Convert Calc editorial team · Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
A 12 st adult's body weight, in kg.
12 st = 76.20351816 kg
Example: a 15 st patient weight on a chart.
15 st = 95.2543977 kg
A 10 st person's weight, entered on a kg form.
10 st = 63.5029318 kg
Example: an 18 st seat weight limit.
18 st = 114.3052772 kg