Stone to Kilograms Converter

Stone is the traditional British unit for body weight — bathroom scales across the UK still read in stone and pounds — while kilograms are the medical and international standard. Converting stone to kilograms matters for doctor's forms, fitness apps, and health records that cross borders. One stone equals 14 pounds, or exactly 6.35029 kilograms, so multiply stone by 6.35029. The converter above works both ways instantly, the table lists 1 to 20 stone alongside common values, and the FAQs explain why Britain still uses stone and how to read values like 11 stone 4.

Stone to KG Calculator

Everything runs in your browser — your data never leaves your device.

Quick Reference Table

Stone to Kilograms conversion table
Stone (st)Kilograms (kg)
16.3503
212.7006
319.0509
425.4012
531.7515
638.1018
744.4521
850.8023
957.1526
1063.5029
1276.2035
1595.2544
18114.3053
20127.0059

Frequently Asked Questions

How many kilograms are in 11 stone?

11 stone = 69.8532 kilograms. Just apply the conversion to any value with the converter above.

What is the formula to convert stone to kilograms?

To convert stone to kilograms, multiply the number of stone by 6.35029. In short: 1 st = 6.35029 kg.

Why does the UK still use stone for body weight?

Tradition and familiarity: generations of Britons have tracked their weight in stone and pounds, so the unit stuck for everyday use even after the UK metricated. Medically, kilograms are standard — which is exactly why this conversion is so often needed. One stone is 14 pounds by definition.

How do I convert kilograms back to stone?

Simply reverse the math: to go from kilograms to stone, divide the kilograms by 6.350293.

Try the full Weight Converter