Stone & Pounds to KG Converter
Your weight in stone and pounds converted to kilograms instantly. Useful for GP appointments, medical forms, or fitness tracking that use metric.
Stone & Pounds to KG Converter
If you know your weight specifically in stones and pounds, plug both numbers into our interactive two-stage calculator below to get your exact total weight in kilograms.
Stone & Pounds to KG
0–13 lbs (14 lbs = 1 stone)
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How Stone and Pounds Work Together
In the British imperial system, weight is expressed in stone and pounds together — like saying "11 stone 3 pounds." One stone equals exactly 14 pounds, so fractional weights are expressed in pounds rather than decimals. To convert this to kilograms, you convert each part separately and add them together.
Example: 11 stone 3 pounds to kg
- 111 stone × 6.35029 = 69.85 kg
- 23 pounds × 0.453592 = 1.36 kg
- 369.85 + 1.36 = 71.21 kg
Common Stone & Pound Examples
Frequently Asked Questions
How do I convert stones and pounds to kilograms?
Multiply your stones by 6.35029, multiply your pounds by 0.453592, and add the two results together to find your total weight in kilograms.
How many kg is 11 stone 3 lb?
11 stone 3 lb is approximately equal to 71.21 kg.
How many pounds are in a stone?
There are exactly 14 pounds (lbs) in 1 stone (st).