Convert kilograms to grams

1 kg=1,000g

Use the converter below to change any kilograms value into grams instantly — with formula, conversion table, and real-world examples.

You have

Equals

1,000

Conversion formula

Forward

grams = kilograms × 1,000

Reverse

kilograms = grams × 0.001

Example: 10 kg × 1,000 = 10,000 g.

About both units

From

Kilogram

The kilogram is the SI base unit of mass. Since 2019 it has been defined via the fixed numerical value of Planck's constant — a major shift from the previous definition based on a physical artifact. One litre of water at 4 °C has a mass of almost exactly 1 kg, a coincidence designed into the original 1795 definition.

Real-world: A litre of water weighs 1 kg at 4 °C. An average adult weighs 60–90 kg. A standard bag of flour is 1 kg.

Read full kilogram reference →

Gram

The gram equals one thousandth of a kilogram. It is the standard unit in European cooking, pharmaceuticals and jewellery. An A4 sheet of 80 g/m² paper weighs about 5 g; a regular chicken egg is around 60 g. The word "gram" comes from the Greek "gramma", a small weight.

Real-world: A chicken egg weighs about 60 g. A standard bar of chocolate is 100 g. A euro coin weighs 7.5 g.

Read full gram reference →

Kilogram to Gram conversion table

Common kilograms to grams values for quick reference.

Kilogram (kg)	Gram (g)
1 kg	1,000 g
5 kg	5,000 g
10 kg	10,000 g
25 kg	25,000 g
50 kg	50,000 g
100 kg	100,000 g
250 kg	250,000 g
500 kg	500,000 g
1,000 kg	1,000,000 g
5,000 kg	5,000,000 g

Tips & common mistakes

Quick tips

1 kg ≈ 2.205 lb. For quick estimates, double the kg figure and add 10%.
Body weight is best measured first thing in the morning, after using the bathroom but before breakfast.
The kg is the only SI base unit whose name contains a prefix — a historical quirk of the metric system.

Avoid these

Confusing mass (kg) with weight-force (newtons) in physics problems.
Using 2 instead of 2.205 when converting kg to pounds — the 2.5% error matters for airline luggage.
Writing Kg instead of kg — the correct SI abbreviation is lower-case kg.

Frequently asked questions

How many grams in a kilogram?

One kilogram equals 1,000 grams.

How do I convert kilograms to grams?

Multiply the kilogram value by 1,000 to get the equivalent in grams.

What is 100 kilograms in grams?

100 kilograms equals 100,000 grams.

Is a kilogram bigger than a gram?

Yes. 1 kilogram equals 1,000 grams, so one kilogram is larger.

How to convert kilograms to grams without a calculator?

Multiply by 1,000 for a quick estimate; use a calculator for precise results.

Related weight conversions

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