Weight and Mass Converter
Avoirdupois pound is 0.45359237 kg. Metric prefixes from the gram. Not a planetary gravity tool.
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How to convert mass
- Enter a value.
- Pick from and to units.
- Read the converted mass.
- Use kg to lb when that pair is the whole job.
Mass
SI mass with avoirdupois imperial units
| Pound | 0.45359237 kg exactly |
|---|---|
| Ounce | 1/16 lb |
| Stone | 14 lb |
| US ton | 2000 lb |
Mass and weight units
This page converts mass with SI grams and the avoirdupois pound of exact 0.45359237 kg. Ounce is 1/16 lb. Stone is 14 lb. US ton is 2000 lb. Metric ton is 1000 kg. Everyday 'weight' in kg or lb is treated as mass here.
Common pairs
kg to lb and lb to kg are the same factors on shorter URLs. Body-mass index needs height too: BMI calculator.
Not kilogram-force
This is mass, not newtons. Kitchen volume (cups, fluid ounces) is on cooking volume in the unit converter, not here.
Mass converter questions
Does this page upload what I type?
No. The work runs in the page you opened. CZNull does not receive the input.
Is the pound exact?
Yes. 1 lb = 0.45359237 kg by definition.
US ton vs tonne?
US ton is 2000 lb. Tonne (metric ton) is 1000 kg.
Troy ounce?
Not on this page. These ounces are avoirdupois.
Stone?
14 avoirdupois pounds.