Stone to kg and kg to stone converter
Use this Stone to Kg calculator to convert stone in kg, kg to stone, and UK stone and pounds instantly with exact weight conversion formulas.
Convert stones (st) to kilograms (kg) instantly.
Fast UK weight converter
Forget hand calculations and guesswork. This free Stone to Kg converter changes stone into kilograms as you type, so gym progress, scale readings, NHS notes, and metric weight guides are easier to understand.
The calculator accepts whole numbers and decimals, works on mobile and desktop, and also lets you switch units for kg to stone, stone in kg, pounds, grams, and other weight conversions.
The kilogram (kg) is the standard mass unit in the International System of Units. It is used globally for health records, science, fitness equipment, luggage, food packaging, and everyday weighing.
The stone is a traditional British and Irish body-weight unit. Even though many official measurements are metric, people in the UK still commonly describe personal weight in stone and pounds.
Once you know that 1 stone equals 6.35029318 kilograms, converting stone to kg is simple: multiply stone by 6.35029318. You can switch the calculator to kg to stone whenever you need the reverse answer or want to check stone in kg.
For example, 11 stone is 69.85 kg. For reverse checks, 1 kilogram (kg) equals about 0.16 stones (st).
| Input | Calculation | Result |
|---|---|---|
| 1 kg | 1 / 6.35029318 | 0.16 st |
| 50 kg | 50 / 6.35029318 | 7.87 st |
| 100 kg | 100 / 6.35029318 | 15.75 st |
| 250 kg | 250 / 6.35029318 | 39.37 st |
| 500 kg | 500 / 6.35029318 | 78.74 st |
| 1000 kg | 1000 / 6.35029318 | 157.47 st |
Use this table for quick approximate answers. Values are rounded to two decimal places.
| Kilograms (kg) | Stone (st) | Stone and pounds |
|---|---|---|
| 1 kg | 0.16 st | 0 st 2.2 lb |
| 5 kg | 0.79 st | 0 st 11.0 lb |
| 10 kg | 1.57 st | 1 st 8 lb |
| 20 kg | 3.15 st | 3 st 2 lb |
| 30 kg | 4.72 st | 4 st 10 lb |
| 40 kg | 6.30 st | 6 st 4 lb |
| 50 kg | 7.87 st | 7 st 12 lb |
| 60 kg | 9.45 st | 9 st 6 lb |
| 70 kg | 11.02 st | 11 st 0 lb |
| 80 kg | 12.60 st | 12 st 8 lb |
| 90 kg | 14.17 st | 14 st 2 lb |
| 100 kg | 15.75 st | 15 st 10 lb |
| 125 kg | 19.68 st | 19 st 9.6 lb |
| 150 kg | 23.62 st | 23 st 8.7 lb |
| 175 kg | 27.56 st | 27 st 7.8 lb |
| 200 kg | 31.49 st | 31 st 6.9 lb |
| 225 kg | 35.43 st | 35 st 6.0 lb |
| 250 kg | 39.37 st | 39 st 5.2 lb |
| 275 kg | 43.31 st | 43 st 4.3 lb |
| 300 kg | 47.24 st | 47 st 3.4 lb |
| 350 kg | 55.12 st | 55 st 1.6 lb |
| 400 kg | 62.99 st | 62 st 13.8 lb |
| 450 kg | 70.86 st | 70 st 12.1 lb |
| 500 kg | 78.74 st | 78 st 10.3 lb |
| 600 kg | 94.48 st | 94 st 6.8 lb |
| 700 kg | 110.23 st | 110 st 3.2 lb |
| 800 kg | 125.98 st | 125 st 13.7 lb |
| 900 kg | 141.73 st | 141 st 10.2 lb |
| 950 kg | 149.60 st | 149 st 8.4 lb |
| 1000 kg | 157.47 st | 157 st 6.6 lb |
People in the UK buy petrol in litres, measure distance in miles, and often weigh themselves in stones. Stone has stayed useful because it is familiar, compact, and natural in everyday conversations about body weight.
Metric BMI values can be easier to understand when the weight is also shown in stone and pounds.
Prescriptions, notes, and medical letters may list kg, while you may think in stone.
Goals may be spoken in stone, while smart scales and apps often store kg.
Watching stones and pounds change can make progress easier to follow.
UK plans often discuss body weight in stone and pounds.
Weight classes may be metric, while comparisons at home may use stone.
1 kg is approximately 0.15747 stone.
1 stone is exactly 6.35029318 kilograms.
Stone in kg is calculated by multiplying the stone value by 6.35029318. For example, 10 stone is 63.5 kg.
Divide kilograms by 6.35029318, or multiply kilograms by 0.157473044.
Yes. The converter shows decimal stone and a UK-friendly stone and pounds result.
Yes. Decimal kilogram values such as 72.4 kg are fully supported.
Stone is mainly used in the United Kingdom and Ireland for body weight.
Yes. It uses the exact conversion factor: 1 stone = 6.35029318 kg.
Yes. The kg to stone calculator is free and does not require registration.
For length conversion, try Inches in cm.
