Weight Converter
Convert between 40+ weight units from around the world and throughout history
Unit Categories
Common Conversions
- Kilograms to Pounds1 kg = 2.20462 lb
- Pounds to Kilograms1 lb = 0.453592 kg
- Ounces to Grams1 oz = 28.3495 g
- Grams to Ounces1 g = 0.035274 oz
- US Tons to Metric Tons1 US ton = 0.907185 metric tons
Did You Know?
The kilogram is the only SI base unit that was defined by a physical artifact until 2019, when it was redefined in terms of the Planck constant.
The carat, used for measuring gemstones, originally came from the carob seed, which was believed to have a consistent weight.
The troy ounce used for precious metals is heavier than the avoirdupois ounce used for everyday items.
The "stone" weight unit still commonly used in the UK and Ireland equals 14 pounds, and is primarily used for measuring human body weight.