Stones to Kg Converter
Convert stones and optional pounds into kilograms instantly with accurate, real-time results. Perfect for UK body weight and everyday weight conversions.
Popular Stone to Kg Conversions
Quick Conversion Reference
- 1 stone = 14 pounds
- 1 stone = 6.35029318 kilograms
- 1 pound = 0.45359237 kilograms
Common Stones to Kg Conversions
Below are some of the most common stone-to-kilogram conversions. Use these quick reference cards for an instant answer, or enter any value into the calculator above for a precise result.
What Is a Stones to Kg Converter?
A stones to kg converter changes stones and pounds into kilograms instantly, so you can get an accurate weight conversion without doing the calculation yourself. Enter your stone value, add any extra pounds, and the calculator provides the kilogram result automatically.
This converter is useful because weight is measured differently around the world. In the UK and Ireland, body weight is often given in stones and pounds, while kilograms are the standard unit in most countries. Converting between the two can be helpful when comparing weight records, using fitness apps, following a nutrition plan, or sharing measurements internationally.
Our converter keeps the process simple. Enter the number of stones and, if needed, enter the remaining pounds. The calculator uses the standard conversion values to calculate the result automatically, so you don’t need to remember formulas or perform manual multiplication.
You can use it for everyday weight checks, fitness tracking, healthcare records, travel documents, or international forms. It can also be useful for students, coaches, and anyone who regularly works with different weight units.

Along with the calculator, this page provides conversion tables, common examples, step-by-step calculations, and helpful FAQs. Whether you’re converting a whole number of stones or a value such as 12 st 5 lb, you can quickly find the equivalent weight in kilograms.
How to Use Our Stones to Kg Converter
Convert stones to kilograms in seconds. Enter your stones, add any remaining pounds, and the calculator automatically shows your weight in kilograms.
Enter Your Weight in Stone
Enter the number of stones (st) in the first field. Use a whole or decimal value depending on how your weight is recorded.
Enter 10 st.
Add Remaining Pounds
If your weight includes extra pounds, enter them in the optional pounds (lb) field. Leave it empty when you only have a stone value.
Enter 10 st 8 lb.
View Your Kilogram Result
Your result appears automatically as you type. You can copy the kilogram value, reset the calculator, or enter another weight immediately.
10 st 8 lb ≈ 67.13 kg
Stones to Kilograms Conversion Formula
The standard formulas below show exactly how to convert stones, or stones and pounds, into kilograms. They are useful when you want to check a calculator result or work out a conversion manually.
Stone to Kilograms Formula
Step 1: Write the formula
10 × 6.35029
Step 2: Multiply
10 × 6.35029 = 63.50 kg
Stone and Pounds to Kilograms Formula
Step 1: Convert stones into pounds
10 × 14 = 140 lb
Step 2: Add the remaining pounds
140 + 8 = 148 lb
Step 3: Convert pounds to kilograms
148 × 0.453592 = 67.13 kg
Stones to Kg Conversion Chart
Use this quick conversion chart to find the kilogram equivalent for common stone values. Search the table to quickly locate a specific weight.
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 Stone | 6.35 kg |
| 2 Stone | 12.70 kg |
| 3 Stone | 19.05 kg |
| 4 Stone | 25.40 kg |
| 5 Stone | 31.75 kg |
| 6 Stone | 38.10 kg |
| 7 Stone | 44.45 kg |
| 8 Stone | 50.80 kg |
| 9 Stone | 57.15 kg |
| 10 Stone | 63.50 kg |
| 11 Stone | 69.85 kg |
| 12 Stone | 76.20 kg |
| 13 Stone | 82.55 kg |
| 14 Stone | 88.90 kg |
| 15 Stone | 95.25 kg |
| 16 Stone | 101.60 kg |
| 17 Stone | 107.95 kg |
| 18 Stone | 114.30 kg |
| 19 Stone | 120.66 kg |
| 20 Stone | 127.01 kg |
| 21 Stone | 133.36 kg |
| 22 Stone | 139.71 kg |
| 23 Stone | 146.06 kg |
| 24 Stone | 152.41 kg |
| 25 Stone | 158.76 kg |
| 26 Stone | 165.11 kg |
| 27 Stone | 171.46 kg |
| 28 Stone | 177.81 kg |
| 29 Stone | 184.16 kg |
| 30 Stone | 190.51 kg |
| 31 Stone | 196.86 kg |
| 32 Stone | 203.21 kg |
| 33 Stone | 209.56 kg |
| 34 Stone | 215.91 kg |
| 35 Stone | 222.26 kg |
| 36 Stone | 228.61 kg |
| 37 Stone | 234.96 kg |
| 38 Stone | 241.31 kg |
| 39 Stone | 247.66 kg |
| 40 Stone | 254.01 kg |
| 41 Stone | 260.36 kg |
| 42 Stone | 266.71 kg |
| 43 Stone | 273.06 kg |
| 44 Stone | 279.41 kg |
| 45 Stone | 285.76 kg |
| 46 Stone | 292.11 kg |
| 47 Stone | 298.46 kg |
| 48 Stone | 304.81 kg |
| 49 Stone | 311.16 kg |
| 50 Stone | 317.51 kg |
How to Convert Stone to Kilograms
You can convert stone to kilograms by multiplying the number of stones by 6.35029318. The result gives the equivalent weight in kilograms, so you can calculate the conversion manually whenever you need it.
Multiply the Stones by 6.35029318
Take your weight in stones and multiply it by the standard conversion factor 6.35029318. This converts the stone measurement into kilograms.
Round the Result
The multiplication may produce several decimal places. For most everyday conversions, rounding the result to two decimal places makes the answer easier to read while keeping useful precision.
Worked Example: 12 Stone to Kg
Step 1: Use the conversion formula.
12 × 6.35029318
Step 2: Multiply.
12 × 6.35029318 = 76.20351816 kg
Step 3: Round to two decimal places.
76.20351816 ≈ 76.20 kg
How to Convert Stone and Pounds to Kilograms
If your weight is written as stones and pounds, you first need to combine both values into a single weight in pounds. Once you have the total number of pounds, multiply it by 0.453592 to convert the result into kilograms. Following these simple steps ensures an accurate conversion every time.
Convert All Stones into Pounds
Each stone contains 14 pounds. Multiply the number of stones by 14 to find the total pounds from the stone value.
Add the Remaining Pounds
If your weight includes extra pounds, add them to the total pounds calculated in the first step. This gives your complete weight in pounds.
Convert Pounds to Kilograms
Multiply the total number of pounds by 0.453592. The final value is your weight in kilograms.
Worked Example
Step 1: Convert stones into pounds.
10 × 14 = 140 lb
Step 2: Add the remaining pounds.
140 + 8 = 148 lb
Step 3: Convert pounds to kilograms.
148 × 0.453592 = 67.13 kg
Conclusion
Converting stones to kilograms is simple: multiply the number of stones by 6.35029318. If your weight includes extra pounds, those pounds can also be included for a more precise kilogram result.
Our Stones to Kg Converter handles the calculation for you. Enter your stones, add any remaining pounds, and the tool instantly shows the equivalent weight in kilograms using the standard conversion values. This saves time and avoids mistakes from manual calculations.
The page also includes the conversion formula, worked examples, common stone-to-kg values, and a searchable conversion chart. So whether you need to convert 10 stone, 12 stone, 14 stone, or a custom weight, you can quickly check the result and understand how the calculation works.
If you regularly switch between imperial and metric measurements, keep this page handy for quick conversions. You can also use our related tools to convert kilograms to stones, stones to pounds, or kilograms to pounds without doing the maths yourself.
Our aim is to provide clear, accurate, and easy-to-use weight converters that give you the answer you need without unnecessary steps.
Frequently Asked Questions
Find quick answers to the most common questions about converting stones to kilograms, understanding weight units, and using our online converter.
Kilograms = Stones × 6.35029
If you have stones and pounds, first convert the stones into pounds, add the remaining pounds, and then multiply the total by 0.453592.
