Stone to Kilograms Converter β€” st to kg

Stone (st)
Kilogram (kg)

1 st = 6.350293 kg

Common Stone to Kilogram Conversions

  • 1 stone = 6.3503 kg
  • 7 stone = 44.452 kg
  • 8 stone = 50.802 kg
  • 9 stone = 57.153 kg
  • 10 stone = 63.503 kg
  • 11 stone = 69.853 kg
  • 12 stone = 76.204 kg
  • 13 stone = 82.554 kg
  • 14 stone = 88.904 kg
  • 15 stone = 95.254 kg
  • 20 stone = 127.006 kg

Stone to Kilogram Reference Table

Stone (st)Kilogram (kg)
16.3503
212.7006
319.0509
425.4012
531.7515
638.1017
744.452
850.8023
957.1526
1063.5029
1169.8532
1276.2035
1382.5538
1488.9041
1595.2544
16101.605
17107.955
18114.305
19120.656
20127.006

How to Convert Stone to Kilogram

To convert stone to kilograms, multiply the number of stone by 6.35029. One stone equals exactly 14 pounds or 6.35029 kg.

1 st = 6.350293 kg

Convert 11 stone to kg: 11 Γ— 6.35029 = 69.85 kg

Convert 10 stone 7 lbs to kg: (10 Γ— 6.35029) + (7 Γ— 0.453592) = 63.50 + 3.18 = 66.68 kg

To convert kilograms to stone, divide the kilograms by 6.35029.

Real-World Comparisons

\u2022 1 stone (6.35 kg) is about the weight of a large house cat.

\u2022 10 stone (63.5 kg / 140 lbs) is a common weight for an average-sized adult.

\u2022 14 stone (88.9 kg / 196 lbs) is 1 hundredweight in the traditional British system.

\u2022 20 stone (127 kg / 280 lbs) is about the weight of a large man or a heavyweight boxer.

The stone is a unit of weight used primarily in the United Kingdom and Ireland, especially for measuring body weight. While most of the world uses kilograms and the US uses pounds, the British continue to describe personal weight in stone and pounds (e.g., "11 stone 4 pounds").

Understanding the Stone

One stone equals exactly 14 pounds or approximately 6.35 kilograms. The stone has been used in the British Isles since the Middle Ages, originally for weighing agricultural commodities. Today its primary use is for human body weight in the UK and Ireland.

British Medical Records

UK doctors and hospitals record body weight in both kilograms and stone/pounds. NHS health guidelines, BMI calculations, and weight management programs in Britain reference stone. If your UK medical records show "12 stone 8 lbs," that’s about 79.4 kg or 175 lbs.

Converting Stone and Pounds to Kilograms

Stone is rarely used alone β€” it usually comes with extra pounds. To convert "X stone Y pounds" to kilograms: multiply the stone by 6.35029, multiply the remaining pounds by 0.453592, and add them together. Or convert everything to pounds first (stone Γ— 14 + pounds), then multiply by 0.453592.

Frequently Asked Questions

How many kg is 1 stone?

One stone equals approximately 6.35029 kilograms.

How many pounds is 1 stone?

One stone equals exactly 14 pounds.

How do I convert stone and pounds to kg?

Multiply stone by 6.35029 and pounds by 0.453592, then add the results. Example: 11 st 4 lbs = (11 Γ— 6.35029) + (4 Γ— 0.453592) = 69.85 + 1.81 = 71.67 kg.

Why does the UK use stone for body weight?

The stone has been used in Britain since medieval times. While the UK officially adopted the metric system, stone remains culturally embedded for personal weight, similar to how Americans use pounds.

Related Conversions

More Free Tools