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Convert grams to kilograms (g to kg)

Type a value in grams or in kilograms: the other field updates as you type. Below you will find the formula, a worked example and a g to kg chart.

Updated on

1 g = 0.001 kg

How to convert grams to kilograms

Formula: kg = g × 0.001

Worked example: 250 g → 250 × 0.001 = 0.25 kg

Grams to kilograms conversion chart

Grams (g)Kilograms (kg)
1 g0.001 kg
2 g0.002 kg
3 g0.003 kg
4 g0.004 kg
5 g0.005 kg
6 g0.006 kg
7 g0.007 kg
8 g0.008 kg
9 g0.009 kg
10 g0.01 kg
12 g0.012 kg
15 g0.015 kg
20 g0.02 kg
25 g0.025 kg
30 g0.03 kg
40 g0.04 kg
50 g0.05 kg
75 g0.075 kg
100 g0.1 kg
250 g0.25 kg
500 g0.5 kg
1,000 g1 kg

What is a gram?

The gram is one thousandth of a kilogram, roughly the mass of a paper clip. It is the unit of kitchen scales and recipes outside the US, of nutrition labels (protein, fat and sugar per serving) and of postage for small parcels.

What is a kilogram?

The kilogram is the SI base unit of mass. Since 2019 it has been defined from the Planck constant rather than from a metal cylinder kept near Paris. Most countries use it for body weight, luggage allowances and groceries; one kilogram is about 2.2 pounds.

Frequently asked questions

How many kilograms are in a gram?

A gram equals 0.001 kilograms. To convert any value, multiply the number of grams by 0.001.

How do you convert grams to kilograms?

Use the formula kg = g × 0.001. Example: 250 g → 250 × 0.001 = 0.25 kg.

How many grams are in a kilogram?

A kilogram equals 1,000 grams. That is the reverse conversion, from kilograms to grams.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.