acalculator

What is 5 grams to kg?

Type a value in either box, and the answer shows it in the other unit as you type.

Your numbers

Kilograms (kg)
0.005

5 g = 0.005 kg.

Kilograms (kg): 0.005. 5 g = 0.005 kg.

Kilograms (kg) by grams (g)

How to calculate

Converts grams (g) to kilograms (kg) and back, with the exact unit definitions.

Example with the default inputs (Grams (g) 5): 5 g = 0.005 kg.

Formula: kg = g × 0.001

  • 1 gram = 0.001 kilograms, from the exact definitions in NIST SP 811.
  • Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.

Machine-readable copies: Markdown, JSON.

Worked examples

Each example is checked against the calculator on every build.

  1. Grams (g) 1 gives Kilograms (kg) 0.001.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
  2. Grams (g) 500 gives Kilograms (kg) 0.5.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
  3. Kilograms (kg) 0.5 gives Grams (g) 500.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8

Other questions people ask

What is 5 grams in kg?

5 g is 0.005 kg. The formula is kg = g × 0.001.

How many kilograms are in a gram?

1 gram is 0.001 kilograms, from the exact unit definitions (NIST SP 811).

How do I convert grams to kg?

Multiply by 0.001: kg = g × 0.001. For example, 5 g × 0.001 = 0.005 kg.

How do I convert kg back to grams?

Multiply by 1,000, or type the kilograms into the second box and the converter works it out. 1 kilogram is 1,000 grams.