To convert kilograms to stone, divide by 6.35029. So 70 kg = 11.02 st and 80 kg = 12.60 st. One stone = 14 lb = 6.35029 kg exactly (derived from the 1959 pound definition).
- 1 st = 6.35029 kg = 14 lb (exact from the pound definition).
- 60 kg = 9.45 st. 70 kg = 11.02 st. 80 kg = 12.60 st.
- Stone is used almost exclusively in the UK and Ireland for body weight.
- To get whole stone and pounds: take the integer part as stone, multiply remainder by 14 to get lbs.
How to Use This Converter
Type any kg value in the kg field and the stone result appears instantly. You can also type in the st field to convert back to kg. The result is in decimal stone - to convert to whole stone plus pounds, multiply the decimal part by 14.
How Do You Convert Kilograms to Stone?
Divide kilograms by 6.35029. One stone = 14 lb exactly, and 1 lb = 0.45359237 kg, so 1 st = 6.350293... kg.
$$\text{st} = \text{kg} \div 6.35029$$
Worked examples: 50 kg = 7.874 st. 60 kg = 9.449 st. 70 kg = 11.023 st. 80 kg = 12.598 st. 90 kg = 14.173 st. 100 kg = 15.747 st.
To express as stone and pounds: for 70 kg = 11.023 st → 11 stone and 0.023 × 14 = 0.32 lb ≈ 11 st 0 lb.
How Do You Convert Stone to Kilograms?
Multiply stone by 6.35029. See the dedicated stone to kilograms converter for a stone-first reference table.
$$\text{kg} = \text{st} \times 6.35029$$
Worked examples: 10 st = 63.50 kg. 12 st = 76.20 kg. 14 st = 88.90 kg.
Kilograms to Stone Reference Table
Common adult body weight values in kg converted to stone:
| Kilograms (kg) | Stone (st) | Stone & lb |
|---|---|---|
| 45 kg | 7.087 st | 7 st 1 lb |
| 50 kg | 7.874 st | 7 st 12 lb |
| 55 kg | 8.661 st | 8 st 9 lb |
| 60 kg | 9.449 st | 9 st 6 lb |
| 65 kg | 10.236 st | 10 st 3 lb |
| 70 kg | 11.023 st | 11 st 0 lb |
| 75 kg | 11.811 st | 11 st 11 lb |
| 80 kg | 12.598 st | 12 st 8 lb |
| 85 kg | 13.385 st | 13 st 5 lb |
| 90 kg | 14.173 st | 14 st 2 lb |
| 100 kg | 15.747 st | 15 st 10 lb |
When Do You Need to Convert kg to Stone?
- UK health and NHS - clinical records use kg; UK patients often express weight in stone. Converting helps communication.
- Fitness and diet - UK-based fitness programs, slimming clubs, and NHS weight management resources use stone.
- UK product descriptions - weight limits on chairs, beds, and sports equipment are sometimes listed in stone in UK product specs.
Frequently Asked Questions
How many stone is 70 kg?
70 kg = 11.023 stone = 11 stone 0 pounds (0.023 × 14 = 0.32 lb, rounds to 0). A common average adult male body weight in many countries.
How do you convert kg to stone?
Divide by 6.35029. Quick estimate: divide by 6.35 (error under 0.005%). For 75 kg: 75 ÷ 6.35 = 11.81 st (actual: 11.811 st).
How many stone is 60 kg?
60 kg = 9.449 stone = 9 stone 6 pounds (0.449 × 14 = 6.29 ≈ 6 lb).
How many stone is 100 kg?
100 kg = 15.747 stone = 15 stone 10 pounds (0.747 × 14 = 10.46 ≈ 10 lb).