Kilograms, pounds, grams, ounces and stone
This sheet converts ordinary mass units used for parcels, luggage, recipes and body-weight records. The pound and ounce are avoirdupois units, rather than troy units.
| Starting value | Converted value | Precision note |
|---|---|---|
| 1 kg | 2.20462 lb | Rounded |
| 5 kg | 11.0231 lb | Rounded |
| 10 kg | 22.0462 lb | Rounded |
| 20 kg | 44.0925 lb | Rounded |
| 70 kg | 154.324 lb | Rounded |
| 1 lb | 0.45359237 kg | Exact |
| 100 g | 3.5274 oz | Rounded |
| 1 oz | 28.349523125 g | Exact; avoirdupois |
| 1 stone | 6.35029318 kg / 14 lb | Exact |
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Download Weight Conversion Chart PDFWorked example: 70 kg in pounds
Use the exact pound definition: 70 ÷ 0.45359237 = 154.3235835... lb. Rounded to one decimal, that is 154.3 lb. The chart shows 154.324 lb to three decimals. Choose the precision that matches the original measurement.
Mass ounces are different from fluid ounces
Grams and ounces here measure mass. Millilitres and fluid ounces measure volume. Converting a recipe from volume to mass needs the ingredient and its density; this mass chart cannot supply that extra information.
Related tools and guides
Frequently asked questions
Is one pound exactly 0.453592 kg?
No. That is rounded. One international avoirdupois pound is exactly 0.45359237 kg.
How many pounds are in one stone?
One stone is 14 avoirdupois pounds, exactly 6.35029318 kg.
Can I use this chart for gold or silver?
Check the stated unit first. Precious metals commonly use troy ounces, which differ from the ordinary avoirdupois ounces in this chart.
Sources and method
- NIST Guide to the SI, Appendix B.8 - Conversion factors for length, volume, area, speed and thermochemical calories.
- NIST Guide to the SI, footnotes 9 and 22 - Exact thermochemical calorie and international pound definitions.