G to Kg Converter

Common questions

How many kg is 1 g?

0.001 kg, because a thousand grams make one kilogram. The pattern holds at every size: 10 g is 0.01 kg, 100 g is 0.1 kg, 250 g is 0.25 kg, 500 g is 0.5 kg, 750 g is 0.75 kg and 1,000 g is exactly 1 kg. Dividing by a thousand moves the decimal point three places to the left, so 12,345 g reads 12.345 kg.

What is the formula for grams to kilograms?

Kilograms = grams / 1,000, and grams = kilograms × 1,000 in the other direction. Kilo is the SI prefix for a thousand, which is why this is a single division and never a lookup: 1,500 / 1,000 = 1.5 kg, 2,500 / 1,000 = 2.5 kg, and 80 / 1,000 = 0.08 kg. The swap button between the two boxes reverses the pair, so this page turns into a kilograms to grams converter without a reload.

Is 1,000 g exactly 1 kg, or is it rounded?

Exactly, and by definition. The kilogram is the SI base unit of mass and the gram is one thousandth of it, so the ratio is fixed by the definition rather than measured. Enter 1,000 and the answer prints as 1 with nothing trailing it, enter 2,000 and it prints 2. The twelve significant digits this converter works to matter for the other rows in the list, such as pounds and stone, where the division does not terminate; grams into kilograms always does.

What is 500 g in kg?

0.5 kg, half a kilo. The pack sizes people usually arrive with work the same way: 125 g is 0.125 kg, 200 g is 0.2 kg, 400 g is 0.4 kg, 750 g is 0.75 kg, 1,500 g is 1.5 kg and 2,500 g is 2.5 kg. The result appears as you type, with no button to press, and Copy result copies it exactly as printed, without the thousands separators, so it pastes straight into a spreadsheet.

What is 500 g in pounds and ounces?

1.10231131092 lb, or 17.6369809748 oz, and both are already on screen: the list under the answer converts into every common mass unit at once instead of making you pick one target. For 1,000 g that list reads 1 kg, 2.20462262185 lb, 35.2739619496 oz, 0.157473044418 st, 1,000,000 mg and 0.001 t. The figures come from the exact definitions, since the international pound is 0.45359237 kg and the ounce is a sixteenth of that pound.

Why does a very small amount show as 1e-7?

Because the display switches to exponential notation below 0.000001, where a decimal answer becomes a row of zeros to count. So 0.001 g still prints in full as 0.000001 kg, while 0.0001 g prints as 1e-7 kg, which is 0.0000001. Nothing has gone wrong; for masses that small the milligram row under the answer is the easier one to read, since 0.0001 g is 0.1 mg.

Can I see milligrams, tonnes or stone as well?

They are already there. Under the answer the same mass is listed in milligrams, kilograms, tonnes, ounces, pounds, stone and US short tons, so 2,500 g reads 2.5 kg, 0.0025 t and 5.51155655462 lb at once. One switch in the readout adds the three uncommon mass units, long tons, carats and grains, and the readout also names the category, Mass, and its base unit, the kilogram. Typing something that is not a number shows a message saying so rather than a wrong answer.

Why does this page open on grams and kilograms when I last converted something else?

Because a page that names a pair should show that pair. Grams and kilograms are set on arrival, ahead of whatever the converter last remembered, and the main unit converter keeps its own memory: go back there and it is still on the pair you left it on. The number you last typed does come with you, since it is usually the one you are still working on. The arithmetic runs in your browser with no upload and no account, and Start over at the top of the page clears what was kept.