Weight Converter
Convert mass between kilograms, grams, milligrams, pounds, and ounces. The pound and ounce are the international avoirdupois units, which are defined exactly in kilograms.
Formula: multiply the source value by 2.20462262
Quick Conversions
About this tool
Mass conversions use the kilogram as the base. A pound is defined as exactly 0.45359237 kg.
How to use it
Enter a mass, choose the from and to units, and read the live result. Swap units when you need the inverse.
value_to = value_from Ă (from_in_kg / to_in_kg)
Examples
70 kg to pounds
70 / 0.45359237 â 154.324 lb.
70 kg to lb
70 Ă 2.20462 = 154.324 lb.
250 g to oz
250 Ă 0.035274 = 8.81849 oz.
Every unit expressed in kilograms
| Unit | Equal to (kg) |
|---|---|
| 1 kilogram (kg) | 1 |
| 1 gram (g) | 0.001 |
| 1 milligram (mg) | 0.000001 |
| 1 pound (lb) | 0.45359237 |
| 1 ounce (oz) | 0.0283495231 |
FAQ
Is this weight or mass?
These units are mass. Everyday language still calls them weight.
Are stones included?
Not in this converter. Use kilograms or pounds, then convert if you need stones.
Is the conversion exact?
Yes, before rounding. The pound has been defined as exactly 0.45359237 kg since 1959, and the ounce as 1/16 of that.