Weight Converter
Convert between different units of weight and mass
Convert Weight
Common Conversions
1 kilogram =
1000 g
1 kilogram =
2.205 lb
1 pound =
453.6 g
1 stone =
14 lb
1 stone =
6.35 kg
1 ounce =
28.35 g
Unit Categories
Metric Units
mg (milligrams), g (grams), kg (kilograms), t (tonnes)
Imperial Units
oz (ounces), lb (pounds), st (stones), cwt (hundredweight)
Large Units
US Tons (2000 lb), UK Tons (2240 lb), Tonnes (1000 kg)
About Weight Conversion
Metric System
The metric system uses kilograms as the base unit of mass. It's decimal-based and used in most countries worldwide.
Common Uses
- Cooking: Recipe ingredients and portion sizes
- Health: Body weight tracking and medical dosages
- Shipping: Package weights for postal services
- Science: Laboratory measurements and calculations
Imperial System
The imperial system includes pounds, stones, and ounces. It's primarily used in the UK and US for everyday measurements.
Accuracy Notes
- Conversions use internationally standardised values
- Results are formatted for readability
- Very large or small numbers use scientific notation
- Precision is maintained for scientific applications