Stones to Pounds Converter
Convert stones to pounds — multiply by fourteen. Results update as you type; exact factors shown.
One stone is 14 pounds — see the exact factor, not a rounded rule of thumb.
How the stones to pounds converter works
Mass converts through the kilogram. The avoirdupois pound has been exactly 0.45359237 kg since 1959, so an ounce is 28.349523125 g and a stone (14 lb) is 6.35029318 kg. A US short ton is 2,000 lb; an imperial long ton is 2,240 lb; a metric tonne is 1,000 kg.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common mass conversions
| From | To | Units |
|---|---|---|
| 1 st | 14 lb | stone to pounds |
| 5 st | 70 lb | stones to pounds |
| 8 st | 112 lb | stones to pounds |
| 9 st | 126 lb | stones to pounds |
| 10 st | 140 lb | stones to pounds |
| 11 st | 154 lb | stones to pounds |
| 12 st | 168 lb | stones to pounds |
| 13 st | 182 lb | stones to pounds |
| 14 st | 196 lb | stones to pounds |
| 15 st | 210 lb | stones to pounds |
| 16 st | 224 lb | stones to pounds |
| 20 st | 280 lb | stones to pounds |
Units in this converter and their exact factors
| Unit | Symbol | One unit in kilograms |
|---|---|---|
| milligram | mg | 0.000001 kilogram |
| gram | g | 0.001 kilogram |
| kilogram | kg | 1 kilogram |
| tonne (metric ton) | t | 1,000 kilogram |
| ounce | oz | 0.0283495231 kilogram |
| pound | lb | 0.45359237 kilogram |
| stone | st | 6.35029318 kilogram |
| US ton (short) | US ton | 907.18474 kilogram |
| imperial ton (long) | long ton | 1,016.0469088 kilogram |
FAQFrequently asked questions about mass conversion
How many pounds in a stone?
Fourteen.
What is 12 stone in pounds?
168 lb.
How do I write 11 stone 6?
That is 160 lb — 11 × 14 plus 6.
Is a stone used anywhere else?
Rarely. It is essentially a British and Irish unit for people.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.