Mass Units Conversion

Metric Mass — short definition

The metric system measures mass using the gram (g) as the base unit. Larger masses are expressed with prefixes: 1 kilogram (kg) = 1,000 grams. Metric units use decimal scaling (powers of ten), which makes conversions simple.

Common metric units: grams (g), kilograms (kg), tonnes (t).

Imperial / US Customary Mass — short definition

Imperial (and US customary) mass uses units like ounces (oz) and pounds (lb). In the US, pounds are commonly used for everyday weights: 1 pound = 16 ounces. Conversions to metric require fixed factors (e.g., 1 lb = 453.59237 g).

Common imperial units shown here: ounces (oz) and pounds (lb).

Auto-advances when correct. Use Next Task to skip.