Weight Converter
unit-converter
Convert between metric, imperial, and trade mass units including carat, grain, and hundredweight. All Unit Conversions panel included.
Convert Weight
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All Unit Conversions
Dedicated converters (metric, imperial, and trade mass units)
182 pages — every pair of units below, with fixed input/output, formulas, examples, and conversion tables.
- kg to g (Kilogram to Gram)
- kg to mg (Kilogram to Milligram)
- kg to ug (Kilogram to Microgram)
- kg to lb (Kilogram to Pound)
- kg to oz (Kilogram to Ounce)
- kg to grain (Kilogram to Grain)
- kg to carat (Kilogram to Carat)
- kg to stone (Kilogram to Stone)
- kg to uk-hundredweight (Kilogram to Hundredweight (UK))
- kg to us-hundredweight (Kilogram to Hundredweight (US))
- kg to metric-ton (Kilogram to Metric Ton)
- kg to long-ton (Kilogram to Long Ton (UK))
- kg to us-ton (Kilogram to US Ton (Short))
- g to kg (Gram to Kilogram)
- g to mg (Gram to Milligram)
- g to ug (Gram to Microgram)
- g to lb (Gram to Pound)
- g to oz (Gram to Ounce)
- g to grain (Gram to Grain)
- g to carat (Gram to Carat)
- g to stone (Gram to Stone)
- g to uk-hundredweight (Gram to Hundredweight (UK))
- g to us-hundredweight (Gram to Hundredweight (US))
- g to metric-ton (Gram to Metric Ton)
- g to long-ton (Gram to Long Ton (UK))
- g to us-ton (Gram to US Ton (Short))
- mg to kg (Milligram to Kilogram)
- mg to g (Milligram to Gram)
- mg to ug (Milligram to Microgram)
- mg to lb (Milligram to Pound)
- mg to oz (Milligram to Ounce)
- mg to grain (Milligram to Grain)
- mg to carat (Milligram to Carat)
- mg to stone (Milligram to Stone)
- mg to uk-hundredweight (Milligram to Hundredweight (UK))
- mg to us-hundredweight (Milligram to Hundredweight (US))
- mg to metric-ton (Milligram to Metric Ton)
- mg to long-ton (Milligram to Long Ton (UK))
- mg to us-ton (Milligram to US Ton (Short))
- ug to kg (Microgram to Kilogram)
- ug to g (Microgram to Gram)
- ug to mg (Microgram to Milligram)
- ug to lb (Microgram to Pound)
- ug to oz (Microgram to Ounce)
- ug to grain (Microgram to Grain)
- ug to carat (Microgram to Carat)
- ug to stone (Microgram to Stone)
- ug to uk-hundredweight (Microgram to Hundredweight (UK))
- ug to us-hundredweight (Microgram to Hundredweight (US))
- ug to metric-ton (Microgram to Metric Ton)
- ug to long-ton (Microgram to Long Ton (UK))
- ug to us-ton (Microgram to US Ton (Short))
- lb to kg (Pound to Kilogram)
- lb to g (Pound to Gram)
- lb to mg (Pound to Milligram)
- lb to ug (Pound to Microgram)
- lb to oz (Pound to Ounce)
- lb to grain (Pound to Grain)
- lb to carat (Pound to Carat)
- lb to stone (Pound to Stone)
- lb to uk-hundredweight (Pound to Hundredweight (UK))
- lb to us-hundredweight (Pound to Hundredweight (US))
- lb to metric-ton (Pound to Metric Ton)
- lb to long-ton (Pound to Long Ton (UK))
- lb to us-ton (Pound to US Ton (Short))
- oz to kg (Ounce to Kilogram)
- oz to g (Ounce to Gram)
- oz to mg (Ounce to Milligram)
- oz to ug (Ounce to Microgram)
- oz to lb (Ounce to Pound)
- oz to grain (Ounce to Grain)
- oz to carat (Ounce to Carat)
- oz to stone (Ounce to Stone)
- oz to uk-hundredweight (Ounce to Hundredweight (UK))
- oz to us-hundredweight (Ounce to Hundredweight (US))
- oz to metric-ton (Ounce to Metric Ton)
- oz to long-ton (Ounce to Long Ton (UK))
- oz to us-ton (Ounce to US Ton (Short))
- grain to kg (Grain to Kilogram)
- grain to g (Grain to Gram)
- grain to mg (Grain to Milligram)
- grain to ug (Grain to Microgram)
- grain to lb (Grain to Pound)
- grain to oz (Grain to Ounce)
- grain to carat (Grain to Carat)
- grain to stone (Grain to Stone)
- grain to uk-hundredweight (Grain to Hundredweight (UK))
- grain to us-hundredweight (Grain to Hundredweight (US))
- grain to metric-ton (Grain to Metric Ton)
- grain to long-ton (Grain to Long Ton (UK))
- grain to us-ton (Grain to US Ton (Short))
- carat to kg (Carat to Kilogram)
- carat to g (Carat to Gram)
- carat to mg (Carat to Milligram)
- carat to ug (Carat to Microgram)
- carat to lb (Carat to Pound)
- carat to oz (Carat to Ounce)
- carat to grain (Carat to Grain)
- carat to stone (Carat to Stone)
- carat to uk-hundredweight (Carat to Hundredweight (UK))
- carat to us-hundredweight (Carat to Hundredweight (US))
- carat to metric-ton (Carat to Metric Ton)
- carat to long-ton (Carat to Long Ton (UK))
- carat to us-ton (Carat to US Ton (Short))
- stone to kg (Stone to Kilogram)
- stone to g (Stone to Gram)
- stone to mg (Stone to Milligram)
- stone to ug (Stone to Microgram)
- stone to lb (Stone to Pound)
- stone to oz (Stone to Ounce)
- stone to grain (Stone to Grain)
- stone to carat (Stone to Carat)
- stone to uk-hundredweight (Stone to Hundredweight (UK))
- stone to us-hundredweight (Stone to Hundredweight (US))
- stone to metric-ton (Stone to Metric Ton)
- stone to long-ton (Stone to Long Ton (UK))
- stone to us-ton (Stone to US Ton (Short))
- uk-hundredweight to kg (Hundredweight (UK) to Kilogram)
- uk-hundredweight to g (Hundredweight (UK) to Gram)
- uk-hundredweight to mg (Hundredweight (UK) to Milligram)
- uk-hundredweight to ug (Hundredweight (UK) to Microgram)
- uk-hundredweight to lb (Hundredweight (UK) to Pound)
- uk-hundredweight to oz (Hundredweight (UK) to Ounce)
- uk-hundredweight to grain (Hundredweight (UK) to Grain)
- uk-hundredweight to carat (Hundredweight (UK) to Carat)
- uk-hundredweight to stone (Hundredweight (UK) to Stone)
- uk-hundredweight to us-hundredweight (Hundredweight (UK) to Hundredweight (US))
- uk-hundredweight to metric-ton (Hundredweight (UK) to Metric Ton)
- uk-hundredweight to long-ton (Hundredweight (UK) to Long Ton (UK))
- uk-hundredweight to us-ton (Hundredweight (UK) to US Ton (Short))
- us-hundredweight to kg (Hundredweight (US) to Kilogram)
- us-hundredweight to g (Hundredweight (US) to Gram)
- us-hundredweight to mg (Hundredweight (US) to Milligram)
- us-hundredweight to ug (Hundredweight (US) to Microgram)
- us-hundredweight to lb (Hundredweight (US) to Pound)
- us-hundredweight to oz (Hundredweight (US) to Ounce)
- us-hundredweight to grain (Hundredweight (US) to Grain)
- us-hundredweight to carat (Hundredweight (US) to Carat)
- us-hundredweight to stone (Hundredweight (US) to Stone)
- us-hundredweight to uk-hundredweight (Hundredweight (US) to Hundredweight (UK))
- us-hundredweight to metric-ton (Hundredweight (US) to Metric Ton)
- us-hundredweight to long-ton (Hundredweight (US) to Long Ton (UK))
- us-hundredweight to us-ton (Hundredweight (US) to US Ton (Short))
- metric-ton to kg (Metric Ton to Kilogram)
- metric-ton to g (Metric Ton to Gram)
- metric-ton to mg (Metric Ton to Milligram)
- metric-ton to ug (Metric Ton to Microgram)
- metric-ton to lb (Metric Ton to Pound)
- metric-ton to oz (Metric Ton to Ounce)
- metric-ton to grain (Metric Ton to Grain)
- metric-ton to carat (Metric Ton to Carat)
- metric-ton to stone (Metric Ton to Stone)
- metric-ton to uk-hundredweight (Metric Ton to Hundredweight (UK))
- metric-ton to us-hundredweight (Metric Ton to Hundredweight (US))
- metric-ton to long-ton (Metric Ton to Long Ton (UK))
- metric-ton to us-ton (Metric Ton to US Ton (Short))
- long-ton to kg (Long Ton (UK) to Kilogram)
- long-ton to g (Long Ton (UK) to Gram)
- long-ton to mg (Long Ton (UK) to Milligram)
- long-ton to ug (Long Ton (UK) to Microgram)
- long-ton to lb (Long Ton (UK) to Pound)
- long-ton to oz (Long Ton (UK) to Ounce)
- long-ton to grain (Long Ton (UK) to Grain)
- long-ton to carat (Long Ton (UK) to Carat)
- long-ton to stone (Long Ton (UK) to Stone)
- long-ton to uk-hundredweight (Long Ton (UK) to Hundredweight (UK))
- long-ton to us-hundredweight (Long Ton (UK) to Hundredweight (US))
- long-ton to metric-ton (Long Ton (UK) to Metric Ton)
- long-ton to us-ton (Long Ton (UK) to US Ton (Short))
- us-ton to kg (US Ton (Short) to Kilogram)
- us-ton to g (US Ton (Short) to Gram)
- us-ton to mg (US Ton (Short) to Milligram)
- us-ton to ug (US Ton (Short) to Microgram)
- us-ton to lb (US Ton (Short) to Pound)
- us-ton to oz (US Ton (Short) to Ounce)
- us-ton to grain (US Ton (Short) to Grain)
- us-ton to carat (US Ton (Short) to Carat)
- us-ton to stone (US Ton (Short) to Stone)
- us-ton to uk-hundredweight (US Ton (Short) to Hundredweight (UK))
- us-ton to us-hundredweight (US Ton (Short) to Hundredweight (US))
- us-ton to metric-ton (US Ton (Short) to Metric Ton)
- us-ton to long-ton (US Ton (Short) to Long Ton (UK))
Common questions (FAQ)
10 quick answers with guides and links to the matching converter.
- How many pounds are in a kilogram?
- How many ounces are in a pound?
- How many grams are in an ounce?
- How many grams are in a kilogram?
- How many pounds are in a stone?
- How many kilograms are in a metric ton?
- How many milligrams are in a gram?
- How many pounds are in a US short ton?
- How many kilograms are in a pound?
- How many micrograms are in a milligram?
Weight Converter Guide
Quick start
- Enter a value and pick source and target units. The result updates as you type.
- Use swap to reverse units and copy to copy the result. The All Unit Conversions panel lists your value across every supported weight unit.
Formulas & deeper content
Need formulas, worked examples, and tables for one pair (e.g. kilograms to pounds)? Use a dedicated converter from the list above.
Short answers to common questions are in the FAQ section above. All calculations run in your browser; metric and imperial mass units are supported.
Example uses
- Cooking: recipe ingredients in grams or ounces.
- Shipping: package weight in kg or lb.
- Health: body weight in kg or pounds.