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Weight Unit Converter
Convert between kilograms, grams, milligrams, pounds, ounces, stone, metric tons, and micrograms instantly. Edit any field to update all others.
Weight Unit Converter
Convert between 8 weight units instantly. Edit any field and all others update automatically — no need to pick a direction or click a button.
Supported units
- Kilogram (kg): SI base unit of mass. 1 kg = 1 000 g.
- Gram (g): common unit for food, medicine, and everyday objects.
- Milligram (mg): used in medicine and chemistry (1 kg = 1 000 000 mg).
- Pound (lb): imperial unit used in the US and UK. 1 lb ≈ 453.59 g.
- Ounce (oz): 1 oz = 1/16 lb ≈ 28.35 g. Used for food and postal weights.
- Stone (st): used for body weight in the UK and Ireland. 1 st = 14 lb ≈ 6.35 kg.
- Metric ton (t): 1 t = 1 000 kg. Used in shipping and industry.
- Microgram (μg): 1 μg = 0.000 001 g. Used in pharmacology and nutrition labels.
Quick reference
- 1 kg = 2.20462 lb = 35.274 oz
- 1 lb = 16 oz = 453.592 g
- 1 stone = 14 lb = 6.350 kg