Mass Unit Conversion Calculator
Convert between all mass and weight units including kilograms, grams, milligrams, metric tons, pounds, ounces, stone, short tons and long tons. Instant, accurate conversions.
Convert between mass and weight units including kilograms, grams, pounds, ounces, stone, metric tons and short/long tons. All conversions calculated instantly.
Unit conversionWeight conversionMass calculationMetric conversion
Formula
Mass Conversion Formula
All conversions use kilogram (kg) as the base unit. To convert: 1. Convert input value to kg: value ÷ conversion_factor_from 2. Convert from kg to target unit: value_in_kg × conversion_factor_to
Frequently Asked Questions
When to use this calculator
- →Converting product weights for international shipping
- →Checking packaging labels across different markets
- →Comparing prices per unit weight across systems
- →Understanding cargo weights in freight quotes
Example conversions
1 kg = 2.20 lbs, 35.27 oz, 0.16 stone
1 lb = 453.59 g, 0.454 kg, 16 oz
1 metric ton = 1000 kg, 2204.62 lbs, 0.984 long tons
1 stone = 14 lbs, 6.35 kg (commonly used in UK)
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