Pounds to Stone Converter
Easily convert pounds to stone and pounds with our free online calculator. Instantly find your weight in stone, pounds, and kilograms for health and fitness tracking.
Convert Your Weight Instantly
Enter your weight in pounds below to see the equivalent measurement in stone and pounds, as well as kilograms.
Your Weight Conversion
Based on your entered pounds
How to Convert Pounds to Stone
Understanding the math behind the conversion helps you quickly estimate weights without needing a calculator.
Know the Base Ratio
The fundamental rule of imperial weight is that 1 stone is exactly equal to 14 pounds. This is a fixed conversion factor.
Divide by 14
Take your total weight in pounds and divide it by 14. The whole number result is your weight in stone.
Find the Remainder
The remainder of that division represents the leftover pounds. For example, 150 ÷ 14 = 10 with a remainder of 10. So, 150 lbs is 10 stone and 10 pounds.
Convert to Kilograms (Optional)
If you need the metric equivalent, multiply the total pounds by 0.453592. For example, 150 lbs × 0.453592 = 68.04 kg.
Common Weight Conversions
A handy lookup table for frequent pound-to-stone and kilogram conversions.
| Pounds (lbs) | Stone & Pounds (st lbs) | Kilograms (kg) |
|---|---|---|
| 100 lbs | 7 st 2 lbs | 45.36 kg |
| 110 lbs | 7 st 12 lbs | 49.90 kg |
| 120 lbs | 8 st 8 lbs | 54.43 kg |
| 130 lbs | 9 st 4 lbs | 58.97 kg |
| 140 lbs | 10 st 0 lbs | 63.50 kg |
| 150 lbs | 10 st 10 lbs | 68.04 kg |
| 160 lbs | 11 st 6 lbs | 72.57 kg |
| 180 lbs | 12 st 12 lbs | 81.65 kg |
| 200 lbs | 14 st 4 lbs | 90.72 kg |
Weight Conversion FAQ
Answers to the most frequently asked questions about measuring weight in the UK and converting between imperial and metric systems.
There are exactly 14 pounds in one stone. This is the standard imperial measurement used primarily in the UK and Ireland for expressing human body weight.
To convert pounds to stone manually, divide the total number of pounds by 14. The whole number is your weight in stone, and the remainder is the additional pounds. For example, 150 lbs ÷ 14 = 10 stone with a remainder of 10 lbs (10 st 10 lbs).
The stone is a traditional English and imperial unit of mass. Although the UK officially adopted the metric system, the stone remains widely used in everyday conversation, particularly for expressing human body weight, due to historical and cultural familiarity.
One stone is equal to approximately 6.35029 kilograms. To convert stone to kilograms, multiply the number of stone by 6.35. For example, 10 stone is roughly 63.5 kg.