Convert kg to st and lb
Enter a weight in kilograms to instantly convert it to stones and pounds.
How this kilograms to stones and pounds calculator works
This tool converts metric weight (kilograms) into imperial units used in the UK: stones and pounds. It is especially useful for tracking body weight, filling in medical forms, or understanding UK fitness measurements.
The conversion is straightforward:
- 1 kilogram = 2.2046226218 pounds
- 1 stone = 14 pounds
The calculator first converts kilograms to total pounds, then splits that value into whole stones and remaining pounds.
Manual conversion formula
Step 1: Convert kilograms to pounds
pounds = kilograms × 2.2046226218
Step 2: Find stones
stones = floor(pounds ÷ 14)
Step 3: Find remaining pounds
remaining pounds = pounds − (stones × 14)
Quick conversion examples
| Kilograms (kg) | Stones and Pounds (st lb) | Total Pounds (lb) |
|---|---|---|
| 50 kg | 7 st 12.23 lb | 110.23 lb |
| 60 kg | 9 st 6.28 lb | 132.28 lb |
| 70 kg | 11 st 0.32 lb | 154.32 lb |
| 80 kg | 12 st 8.37 lb | 176.37 lb |
| 90 kg | 14 st 2.41 lb | 198.42 lb |
When to use kg to st/lb conversion
- Comparing health records from countries with different unit systems
- Understanding UK gym, sports, or boxing weight references
- Reading old documents or personal records listed in stones
- Tracking progress on weight-loss or muscle-gain plans
Tips for accurate weight conversion
Use decimal kilograms
If your scale reads 72.6 kg, enter the full decimal. This gives a more precise stone-and-pound result.
Round only at the end
For best accuracy, perform full calculations first and then round the final pounds value to 1–2 decimal places.
Weigh under similar conditions
If you are monitoring changes over time, weigh at similar times of day, with similar clothing and hydration. Consistency matters more than tiny decimal differences.
Frequently asked questions
Is stone still used today?
Yes. In the UK and Ireland, people commonly describe body weight in stones and pounds.
Why do I get decimal pounds?
Because kilograms convert to pounds with decimals in most cases. You can keep decimals for precision, or round to the nearest whole pound.
Can this calculator handle very small or very large numbers?
Yes. The input supports decimal values and large values. Just enter a non-negative kilogram number.
Bottom line
This kilograms to stones and pounds calculator gives you a fast, accurate conversion in seconds. Enter your kg value, click calculate, and instantly see the result in both stones and pounds and total pounds.