Weight Converters
How heavy something is — pounds, kilograms, grams and ounces.
Choose a converter
- Grams to Pounds g → lb
- Pounds to Ounces lb → oz
- Pounds to Kilograms lb → kg
- Kilograms to Pounds kg → lb
What weight units measure
Weight units measure how heavy something is. Metric units (grams, kilograms) and US customary units (ounces, pounds) measure the same property, so every conversion between them is a fixed number that never depends on what is being weighed.
Weight units on this site
| Unit | Symbol | Equals in kilograms |
|---|---|---|
| Kilograms | kg | 1 (base unit) |
| Grams | g | 0.001 |
| Pounds | lb | 0.45359237 |
| Ounces | oz | 0.028349523125 |
Every converter here calculates through kilograms, so a pair and its reverse always agree. The full list of factors and the standards behind them is on the methodology page.