Grains to Kilograms (gr to kg) Converter

How to convert grains to kilograms

Formulakg = gr × 0.00006479891

Multiply the value in grains by 0.00006479891. To go the other way, multiply by 15,432.35835 (or divide by 0.00006479891).

A grain is smaller than a kilogram: it takes 15,432.35835 grains to make one kilogram.

Worked examples

1 grain1 gr × 0.00006479891 = 0.00006479891 kg
5 grains5 gr × 0.00006479891 = 0.00032399455 kg
10 grains10 gr × 0.00006479891 = 0.0006479891 kg
20 grains20 gr × 0.00006479891 = 0.0012959782 kg
100 grains100 gr × 0.00006479891 = 0.006479891 kg

Grains to kilograms conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Grains to kilograms: 0.1–10 gr
Grains (gr)	Kilograms (kg)
0.1 gr	0.000006479891 kg
0.25 gr	0.000016199728 kg
0.5 gr	0.000032399455 kg
1 gr	0.00006479891 kg
2 gr	0.00012959782 kg
3 gr	0.00019439673 kg
4 gr	0.00025919564 kg
5 gr	0.00032399455 kg
6 gr	0.00038879346 kg
7 gr	0.00045359237 kg
8 gr	0.00051839128 kg
9 gr	0.00058319019 kg
10 gr	0.0006479891 kg

Grains to kilograms: 12–1,000 gr
Grains (gr)	Kilograms (kg)
12 gr	0.00077758692 kg
15 gr	0.00097198365 kg
20 gr	0.0012959782 kg
25 gr	0.0016199728 kg
30 gr	0.0019439673 kg
40 gr	0.0025919564 kg
50 gr	0.0032399455 kg
75 gr	0.0048599183 kg
100 gr	0.006479891 kg
250 gr	0.016199728 kg
500 gr	0.032399455 kg
1,000 gr	0.06479891 kg

About the units

Grain (gr)

Exactly 64.79891 mg; 7,000 grains make a pound. Used for bullets, arrows and some medicines. One grain equals 0.00006479891 kilograms (kg).

Kilogram (kg)

The SI base unit of mass, defined since 2019 through the Planck constant. A litre of water has a mass of almost exactly 1 kg.

Frequently asked questions

How many kilograms are in one grain?

There are 0.00006479891 kilograms in one grain, and this value is exact by definition.

How do I convert grains to kilograms?

Multiply the number of grains by 0.00006479891. For example, 10 gr × 0.00006479891 = 0.0006479891 kg.

How many grains are in one kilogram?

One kilogram equals 15,432.35835 grains. That is the reverse factor, 1 ÷ 0.00006479891.

What is 10 grains in kilograms?

10 gr = 0.0006479891 kg.

Is this gr to kg converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Grains to Kilograms Converter