Weight Unit Converter

Convert between 10 weight units instantly - metric, imperial and more

Convert to All Units

Milligram (mg)-
Gram (g)-
Kilogram (kg)-
Ounce (oz)-
Pound (lb)-
Stone (st)-
Metric Ton (t)-
US Ton (short)-
UK Ton (long)-
Carat (ct)-

Weight Units Reference

Unit Symbol In Grams Common Use
Milligram mg 0.001 g Medicine dosage, vitamin supplements
Gram g 1 g Food ingredients, small items, coins
Kilogram kg 1,000 g Body weight, groceries, luggage
Ounce oz 28.3495 g Food portions, precious metals, cooking
Pound lb 453.592 g Body weight (US/UK), shipping, produce
Stone st 6,350.29 g Body weight (UK/Ireland), 1 stone = 14 lbs
Metric Ton t 1,000,000 g Shipping cargo, vehicles, bulk materials
US Ton short ton 907,185 g US shipping, 2,000 pounds
UK Ton long ton 1,016,047 g UK shipping, 2,240 pounds
Carat ct 0.2 g Gemstones, diamonds, jewelry

Comprehensive Weight Unit Conversion Guide

Weight (or more precisely, mass) conversion is essential in many fields, from science and engineering to cooking and fitness. This comprehensive weight converter supports all major global standards, including metric, US customary, and Imperial units.

Metric Weight Units (SI)

The metric system is based on the gram (g). Common units include:

US Customary & Imperial Weight Units

Used primarily in the United States and the UK, these units include: