Weight Converter
Quickly convert between metric and imperial weight units. This tool supports milligrams, grams, kilograms, ounces, pounds, stone, and metric tons with precise conversion factors based on international standards.
Weight (or more precisely, mass) conversion is essential in cooking, science, shipping, fitness, and daily life. The metric system uses grams and kilograms, while the imperial system uses ounces, pounds, and stone.
Key Conversion Factors:
- 1 pound (lb) = 453.59237 grams (exact, by definition)
- 1 ounce (oz) = 28.349523125 grams (exact)
- 1 stone = 14 pounds = 6,350.29318 grams
- 1 metric ton = 1,000 kilograms
- 1 kilogram = 2.20462 pounds (approximately)
All conversions use the exact avoirdupois definitions adopted internationally. The avoirdupois ounce and pound are the standard units used in everyday commerce in the US and UK.