Stone to Kilogram Converter
Enter the value that you want to convert stone (st) to kilogram (kg) or kilogram to stone.Also written as ST to KG conversion.
1 stone = 5.6699046 kilogram
Formula: kilogram = stone value × 5.6699046
ST to KG — stone to kilogram
10 stone = 56.69905 kilogram
Popular Weight Converters:
Stone to Kilogram: The Essentials
The Stone Explained
Stone (st) is a unit of weight measurement. 1 stone is equal to 5.6699046 kilogram.
The Kilogram Explained
Kilogram (kg) is a unit of weight measurement. 1 kilogram is equal to 0.1763698 stone.
Understanding Weight Conversions
Weight unit conversions are among the most frequently performed in daily life. International commerce ships in metric tonnes and kilograms, while US domestic logistics uses pounds and ounces. Recipes from different countries use different systems — a European cake recipe in grams versus an American one in cups and ounces. Pharmacists convert between milligrams and grains for medication dosing. Athletes track body weight across metric and imperial systems depending on their country and sport federation requirements.
stone to kilogram metric conversion table
| 0.01 st | = | 0.05670 kg |
| 0.1 st | = | 0.56699 kg |
| 1 st | = | 5.66990 kg |
| 2 st | = | 11.33981 kg |
| 3 st | = | 17.00971 kg |
| 4 st | = | 22.67962 kg |
| 5 st | = | 28.34952 kg |
| 6 st | = | 34.01943 kg |
| 7 st | = | 39.68933 kg |
| 8 st | = | 45.35924 kg |
| 9 st | = | 51.02914 kg |
| 10 st | = | 56.69905 kg |
| 11 st | = | 62.36895 kg |
| 12 st | = | 68.03886 kg |
| 13 st | = | 73.70876 kg |
| 14 st | = | 79.37866 kg |
| 15 st | = | 85.04857 kg |
| 16 st | = | 90.71847 kg |
| 17 st | = | 96.38838 kg |
| 18 st | = | 102.05828 kg |
| 19 st | = | 107.72819 kg |
| 20 st | = | 113.39809 kg |
| 30 st | = | 170.09714 kg |
| 40 st | = | 226.79619 kg |
| 50 st | = | 283.49523 kg |
| 60 st | = | 340.19428 kg |
| 70 st | = | 396.89332 kg |
| 80 st | = | 453.59237 kg |
| 90 st | = | 510.29142 kg |
| 100 st | = | 566.99046 kg |
| 200 st | = | 1133.98093 kg |
| 300 st | = | 1700.97139 kg |
| 400 st | = | 2267.96185 kg |
| 500 st | = | 2834.95231 kg |
| 600 st | = | 3401.94277 kg |
| 700 st | = | 3968.93324 kg |
| 800 st | = | 4535.92370 kg |
| 900 st | = | 5102.91416 kg |
| 1000 st | = | 5669.90463 kg |
How to Convert ST to KG (Stone to Kilogram)?
We can convert stone to kilogram by using an example.
Example:
Convert 20 Stone to Kilogram?
We know 1 Stone = 5.6699046 kilogram; 1 Kilogram = 0.1763698 stone.
20 stone = ___kg
20 × 5.6699046 = 113.39809 kg (we know 1 stone = 5.6699046 kilogram)
Answer:
20 stone = 113.39809 kilogram
How to Convert Stone to Kilograms (Step-by-Step)
One stone equals exactly 6.35029 kg (14 lbs). The stone is used in the UK and Ireland for body weight. Converting to kilograms is needed for medical forms, international travel, and fitness tracking apps that use metric units.
- Identify the weight in stone (st) you want to convert.
- Multiply by 6.35029 to get the value in kilograms.
- If the weight includes pounds (e.g., 10 st 7 lbs), convert pounds separately and add.
Common Stone to Kilogram Conversions (Body Weights)
UK body weight ranges converted to metric for medical and fitness use.
| Stone | Kilogram |
|---|---|
| 7 st | 44.45 kg |
| 9 st | 57.15 kg |
| 10 st | 63.50 kg |
| 11 st | 69.85 kg |
| 12 st | 76.20 kg |
| 14 st | 88.90 kg |
| 16 st | 101.60 kg |
| 20 st | 127.01 kg |
Solved Examples: Stone to Kilograms
Question 1: Convert 13 stone 5 lbs to kilograms for a medical form.
Solution:
Stone portion: 13 × 6.35029 = 82.554 kg
Pounds portion: 5 × 0.453592 = 2.268 kg
Total: 82.554 + 2.268 = 84.822 kg
Answer: 13 st 5 lbs = 84.8 kg.
Question 2: A person weighs 10 stone. What is their weight in kg?
Solution:
Weight in kg = 10 × 6.35029
= 63.50 kg
Answer: 10 stone = 63.5 kg.
Question 3: Convert 15 stone 10 lbs to kg.
Solution:
Stone portion: 15 × 6.35029 = 95.254 kg
Pounds portion: 10 × 0.453592 = 4.536 kg
Total: 95.254 + 4.536 = 99.790 kg
Answer: 15 st 10 lbs = 99.8 kg.
Practice Questions: Stone to Kilograms
Try solving these on your own to test your understanding:
- Convert 8 stone to kg. (Answer: 50.80 kg)
- Express 11 st 7 lbs in kg. (Answer: 73.03 kg)
- Convert 14 stone to kg. (Answer: 88.90 kg)
- A person weighs 9 st 3 lbs. What is this in kg? (Answer: 58.51 kg)
- Convert 17 stone to kg. (Answer: 107.95 kg)
UK Body Weight Culture and the Stone
The UK and Ireland remain the only countries that commonly use stone for body weight in everyday conversation. "I weigh eleven stone" is normal British English, while Americans say pounds and most of the world uses kilograms. NHS health guidelines, UK diet plans, and British fitness magazines use stone. However, medical equipment (scales, BMI calculators) increasingly shows kg, requiring regular conversion.
BMI Calculation from Stone Weight
BMI = weight (kg) ÷ height (m)². To calculate BMI from stone: first convert to kg (stone × 6.35), then apply the formula. For example: 12 st (76.2 kg), 5'10" (1.778 m): BMI = 76.2 ÷ (1.778²) = 76.2 ÷ 3.16 = 24.1 (healthy range). UK NHS defines BMI ranges: <18.5 underweight, 18.5-24.9 healthy, 25-29.9 overweight, 30+ obese.
Key Takeaways
- 1 stone = 6.35029 kg (14 lbs exactly).
- UK and Ireland use stone for body weight in everyday conversation.
- For stone + pounds: (st × 6.35) + (lbs × 0.454) = total kg.
- NHS and medical forms increasingly require kg, making conversion necessary.
- Average UK male: ~12 st (76 kg); average UK female: ~10 st (63.5 kg).
- BMI calculation requires kg — always convert from stone first.
Stone to Kilogram Conversion Formula
kilogram = stone × 5.6699046
1 stone = 5.6699046 kilogram
1 kilogram = 0.1763698 stone
Reverse: stone = kilogram × 0.1763698
Frequently Asked Questions
How many kilogram are in 1 stone?
There are 5.6699046 kilogram in 1 stone. To convert stone to kilogram, multiply the value by 5.6699046.
How do I convert stone to kilogram?
Multiply your stone value by 5.6699046 to get the equivalent in kilogram. For example, 5 stone = 5 × 5.6699046 = 28.34952 kilogram.
How do I convert kilogram to stone?
Multiply your kilogram value by 0.1763698 to get the equivalent in stone. Alternatively, divide by 5.6699046.
What is 10 stone in kilogram?
10 stone is equal to 56.69905 kilogram.
What is 100 stone in kilogram?
100 stone is equal to 566.99046 kilogram.