Kilograms to Grams Converter (kg to g)

How to use this calculator: kg to grams

1. 1Enter the value measured in kilogram (kg).
2. 2Confirm the direction is Kilogram (kg) to Gram (g); reversing the units changes the factor or offset.
3. 3Apply g = kg × 1,000. The live converter performs this substitution as you type.
4. 4Read the answer in g and keep only justified precision.

Conversion formula

Grams and kilograms are both metric units of mass: one kilogram is exactly 1,000 grams. Converting is a simple decimal shift, which makes it the everyday conversion for recipes, parcel weights and lab quantities.

The units measure the same quantity at different scales: 1 kg = 1,000 g, and 1 g = 0.001 kg.

Worked conversion example: Kilograms to Grams

1. Given: 1.5 kg
2. Substitute: g = 1.5 × 1,000 = 1,500
3. Result: 1.5 kg = 1,500 g

Accuracy checklist

The converter keeps extra precision internally. Report only the precision supported by the original measurement and follow the required rounding rule.

Direction check: a smaller unit usually gives a larger number; temperature is an exception.

Unit definitions and SI traceability: NIST Office of Weights and Measures — SI Units.