Weight Converter
Converts weight across milligrams, grams, kilograms, tonnes, ounces, pounds and the Korean geun (600 g) — type in any field and the rest follow. One pound is exactly 453.59237 g; one ounce is a sixteenth of that, 28.3495 g.
How to use
- Enter a value in any unit.
- Read the equivalents in the other fields as they update.
- Copy what you need.
- For cooking, remember ounces here are weight — fluid ounces are volume and live in a different conversion.
When you actually need this
- Reading US recipes and nutrition labels quoted in ounces and pounds.
- Converting body or luggage weight between kilograms and pounds.
- Translating a Korean market quantity — meat by the geun — into grams.
- Checking shipping weights across carriers that quote different units.
The units that trip people up
The pound here is the international avoirdupois pound, 453.59237 g exactly. The ounce trap is weight versus volume: 8 oz of flour on a scale is not 8 fluid ounces in a cup, and US recipes mix both freely. The geun is fixed at 600 g for meat in Korean markets, though historically it varied by commodity — produce was often sold by a 375 g geun. Precious metals use yet another system: a troy ounce is 31.103 g, about ten percent heavier than the kitchen ounce, so gold prices quoted per ounce do not convert with the factor here.
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FAQ
How precise are the conversion factors in Weight Converter?
The factors are the internationally defined exact values — one inch is exactly 25.4 millimetres, one pound is exactly 0.45359237 kilograms, and so on. Results are computed at full floating-point precision and only rounded for display.
Can I convert between metric and imperial units in both directions?
Yes. Enter a value in any field and every other unit updates at once, so the conversion works in either direction without switching modes or pressing a button.
Why does the last decimal place sometimes look off?
Because many conversions are irrational in decimal form and browsers use binary floating point, the final digit can differ by a tiny amount. The displayed value is rounded sensibly for everyday use; for laboratory or engineering work, carry the unrounded figure through your own calculation.