How do I convert grams to kilograms?

Multiply the gram value by 0.001. So x g × 0.001 = the equivalent in kg.

What is 5 grams in kilograms?

5 grams equals 0.005 kilograms.

What is 10 grams in kilograms?

10 grams equals 0.01 kilograms.

What is 100 grams in kilograms?

100 grams equals 0.1 kilograms.

How do I convert back from kilograms to grams?

Multiply the kilogram value by 1000. For example, 1 kg = 1000 g.

Is the gram bigger than the kilogram?

No. 1 gram is smaller than 1 kilogram. It takes 1000 grams to equal 1 kilogram.

Are these conversion factors exact?

Yes. The factor of 0.001 is derived directly from the SI definitions of gram and kilogram.

Grams to Kilograms Converter

1 g = 0.001 kg

1 gram equals 0.001 kilograms. To convert grams to kilograms, multiply the gram value by 0.001. For quick reference: 1 g = 0.001 kg, 5 g = 0.005 kg, 10 g = 0.01 kg, 100 g = 0.1 kg.

From

0.001

FormulaKilograms = Grams × 0.001

Quick

How to convert grams to kilograms

Take your value
Start with your value in grams.
Multiply by 0.001
Multiply the gram value by 0.001. This is the exact conversion factor from grams to kilograms.
Read the result
The product is your value in kilograms. For example, 5 g × 0.001 = 0.005 kg.

Conversion formula

The exact factor from grams to kilograms is 0.001.

Kilograms = Grams × 0.001

Grams to Kilograms conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from grams to kilograms
Grams (g)	Kilograms (kg)
0.1 g	0.0001 kg
0.25 g	0.00025 kg
0.5 g	0.0005 kg
1 g	0.001 kg
1.5 g	0.0015 kg
2 g	0.002 kg
2.5 g	0.0025 kg
3 g	0.003 kg
4 g	0.004 kg
5 g	0.005 kg
6 g	0.006 kg
7 g	0.007 kg
8 g	0.008 kg
9 g	0.009 kg
10 g	0.01 kg
12 g	0.012 kg
15 g	0.015 kg
18 g	0.018 kg
20 g	0.02 kg
25 g	0.025 kg
30 g	0.03 kg
35 g	0.035 kg
40 g	0.04 kg
45 g	0.045 kg
50 g	0.05 kg
60 g	0.06 kg
70 g	0.07 kg
75 g	0.075 kg
80 g	0.08 kg
90 g	0.09 kg
100 g	0.1 kg
120 g	0.12 kg
125 g	0.125 kg
150 g	0.15 kg
175 g	0.175 kg
180 g	0.18 kg
200 g	0.2 kg
225 g	0.225 kg
250 g	0.25 kg
275 g	0.275 kg
300 g	0.3 kg
350 g	0.35 kg
400 g	0.4 kg
450 g	0.45 kg
500 g	0.5 kg
600 g	0.6 kg
750 g	0.75 kg
1000 g	1 kg
2000 g	2 kg
5000 g	5 kg

Real-world reference

A standard paperclip is about 1 g. A US nickel weighs 5 g. A small pencil weighs around 7 g.

Frequently asked questions

How many kilograms are in 1 gram?: 1 gram equals 0.001 kilograms.
How do I convert grams to kilograms?: Multiply the gram value by 0.001. So x g × 0.001 = the equivalent in kg.
What is 5 grams in kilograms?: 5 grams equals 0.005 kilograms.
What is 10 grams in kilograms?: 10 grams equals 0.01 kilograms.
What is 100 grams in kilograms?: 100 grams equals 0.1 kilograms.
How do I convert back from kilograms to grams?: Multiply the kilogram value by 1000. For example, 1 kg = 1000 g.
Is the gram bigger than the kilogram?: No. 1 gram is smaller than 1 kilogram. It takes 1000 grams to equal 1 kilogram.
Are these conversion factors exact?: Yes. The factor of 0.001 is derived directly from the SI definitions of gram and kilogram.

About the gram and the kilogram

The gram

The gram (g) is a metric unit of mass equal to one-thousandth of a kilogram. It is the everyday unit for food labeling, postage, jewelry, and laboratory measurements. The 2019 SI redefinition fixed the kilogram (and therefore the gram) in terms of Planck's constant, ending more than a century of dependence on a physical prototype.

The kilogram

The kilogram (kg) is the SI base unit of mass. Since the 2019 redefinition it is defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ J·s, replacing the old International Prototype Kilogram artifact. In everyday use, the kilogram is the global standard for body weight, groceries, and engineering specifications.

Kilograms to Metric tons

kg → t