Weight Conversions

Weight conversions come up in cooking, fitness, shipping, and science. Quickly convert kilograms to pounds for gym tracking, grams to ounces for recipes, or pounds to kilograms when comparing product weights across countries. Pick a converter below to begin.

Weight conversions explained

Weight (mass) is commonly measured in grams and kilograms in the metric system, and ounces and pounds in the U.S.

A quick reference: 1 kilogram equals about 2.20462 pounds, and 1 pound equals 16 ounces.

Quick tips

  • For recipes, ounces vs grams matter — don’t swap fluid ounces with ounces.
  • If you see “lb” it means pounds; “oz” means ounces; “g/kg” are metric.
  • For shipping, carriers often round up to the nearest whole unit.

Try a converter below, or start with the most common conversions in this category.