Metric tons
Stones
If you want to learn more about the stone unit, please read our article: Stone calculator
Conversion factors
- 1 stone = 6.35029 kilograms
- 1 stone = 14 pounds
- 1 pound = 16 ounces
Pounds
Want to learn more about the pound unit? Read our guide: Pound - what is this unit?
Conversion factors
- Kilograms: 1 pound = 0.45359237 kilograms
- Ounces: 1 pound = 16 ounces
- Grams: 1 pound = 453.592 grams
- Stones: 1 pound = 0.0714286 stones
Ounces
For more information about ounces, check out our article: Ounce conversion calculator
Conversion factors
- 1 ounce is equivalent to 0.0283495 kilograms.
- 1 ounce equals 28.3495 grams.
- 1 ounce is 0.0000283495 metric tons.
- 1 ounce is 0.0625 pounds.
- 1 ounce equals 28,349.5 milligrams.
Grams
All the most important information about the gram mass unit can be found in our guide: Gram - what unit is this?
Conversion factors:
- Kilograms: 1 gram = 0.001 kilograms
- Ounces: 1 gram ≈ 0.0352739619 ounces
- Pounds: 1 gram ≈ 0.0022046226 pounds
- Troy Ounces: 1 gram ≈ 0.0321507466 troy ounces
Kilograms
Read the history and full definition in our article: Kilogram - what unit is this?
Conversion factors:
- Grams: 1 kilogram = 1000 grams
- Ounces: 1 kilogram ≈ 35.27 ounces
- Pounds: 1 kilogram ≈ 2.20 pounds
- Tons metric: 1 gram = 0.001 tons
What are the world's weight units?
Weight (mass) units vary across the world based on region, tradition, and standardization systems. Below is a breakdown by continent and country:
North America
- United States: Pounds (lb), Ounces (oz), Tons (short ton = 2,000 lb)
- Canada: Kilograms (kg) (official), Pounds (lb) (common in daily use)
- Mexico: Kilograms (kg), Grams (g), Toneladas (metric tons)
South America
- Most countries use Kilograms (kg) and Metric Tons (t).
- Some local uses of Arroba (~11.5 kg in some countries, ~15 kg in others).
Europe
- Entire European Union: Kilograms (kg), Metric Tons (t)
- United Kingdom: Kilograms (kg) (official), but Pounds (lb), Stones (st) (14 lb = 1 stone) are still commonly used.
- Russia: Kilograms (kg), Poods (obsolete but sometimes used, 1 Pood = ~16.38 kg)
Africa
- Most countries use Kilograms (kg) and Metric Tons (t).
- Some local weight units in rural areas, like Ardeb in Sudan (~90 kg for wheat).
Asia
- China: Kilograms (kg), Traditional units like Jin (~0.5 kg)
- Japan: Kilograms (kg), Traditional Kan (~3.75 kg, rare)
- India: Kilograms (kg), Traditional units like Maund (~37.3 kg, historical)
- Middle East: Kilograms (kg), Local units like Rotl (~0.5 kg in some places)
Australia and Oceania
- Australia, New Zealand: Kilograms (kg), Metric Tons (t)
- Some local traditional units in smaller Pacific islands.
The metric system (kg, g, t) is used in most of the world, but the Imperial system (lb, oz, st, ton) remains in the U.S. and parts of the UK.