Convert kilogram to gram

1 kilogram = 1000 grams. Enter any value below for an exact conversion.

Value in kilograms

1 kg =

1000 g

grams

Need the reverse? Convert gram to kilogram →

Formula

1 kilogram = 1000 grams
gram = kilograms × 1000
kilogram = grams × 0.001

kilogram to gram conversion table

1 kg1000 g

2 kg2000 g

3 kg3000 g

5 kg5000 g

10 kg10000 g

20 kg20000 g

25 kg25000 g

50 kg50000 g

100 kg100000 g

1000 kg1000000 g

About converting kilograms to grams

Kilograms to grams is a base kitchen and science conversion, since scales and recipes freely mix the two. One kilogram is exactly 1,000 grams, so 1.5 kg of flour is 1,500 g and a 250 g portion is a quarter of a kilogram.

Method & sources

Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.

Page last updated: October 1, 2026

Frequently asked questions

How many grams are in a kilogram?

One kilogram equals 1000 grams. So 10 kilograms is 10000 grams. Use the converter above for any value.

What is the formula to convert kilograms to grams?

1 kilogram = 1000 grams gram = kilograms × 1000 kilogram = grams × 0.001

Is the kilogram-to-gram conversion exact?

Yes. The conversion factor between kilograms and grams is defined exactly, so results are precise — only rounded for display.

All units →

These free tools pair well with this page — open them in a new tab to finish your workflow.