How many grams are in one kilogram?

One kilogram equals 1,000 g. The formula is g = kg × 1,000.

How do I convert kilograms to grams?

Multiply the value in kilograms by 1,000. For example, 100 × 1,000 = 100,000 — so 100 kg = 100,000 g.

Pair · linear · factor 1,000

kilograms to grams

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kilograms · ≈ 100 kg (base)

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A glowing emerald beam balance: the kilogram prototype cylinder under a glass bell jar on one pan, old weights scattering into stars on the other, against a cosmic nebula in violet and magenta

Mass

Not all pounds are equal — how we weighed the world

Three different pounds in one kingdom, a Warsaw pound and a Prussian one, a probe burned up over Mars, a jetliner out of fuel over Canada — and a platinum cylinder near Paris that kept losing weight for a century, even though by definition it weighed exactly one kilogram. This is the history of mass units and its expensive mistakes.

12 min