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Convert kilograms, pounds, ounces, grams, tons and more.
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Convert between metric and imperial weight units. 1 kg = 2.205 lbs, 1 lb = 453.6 g, 1 oz = 28.35 g.
Weight (technically mass in physics) is measured differently around the world. Our converter handles SI units, US customary, imperial, and a few specialized units like the troy ounce used for precious metals.
The kilogram (kg) is the SI base unit. The gram (g) and milligram (mg) cover smaller masses, and the metric ton (1,000 kg) covers larger ones. Imperial and US customary use the pound (lb = 453.592 g), ounce (1 lb / 16), and stone (14 lb, common in the UK for body weight). The troy ounce (31.1035 g) is used exclusively for precious metals.
Enter your value, select the unit you have, and select the target unit. All math is done locally in your browser. No data is uploaded so you can safely use the tool for shipping documents and inventory.
1 kg equals 2.20462 lb. 1 lb equals 16 oz or 453.592 g. 1 stone equals 6.35 kg. 1 metric ton equals 1,000 kg or 2,204.62 lb. 1 troy ounce of gold equals 31.1035 g — about 10 percent heavier than the everyday avoirdupois ounce.
Strictly no. Mass is the amount of matter; weight is the force gravity exerts on that mass. In everyday usage on Earth they are proportional and the labels are used interchangeably.
The troy ounce predates the avoirdupois ounce and is used in the precious-metals trade for historical and regulatory consistency. 1 troy oz equals 1.097 avoirdupois oz.
Yes — the converter supports micrograms (µg) and accepts scientific notation for very small or very large values.
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