Grains to Troy Ounces (gr to oz t) Converter

How to convert grains to troy ounces

Formulaoz t = gr × 0.002083333333

Because one troy ounce equals 480 grains, you can also divide: oz t = gr ÷ 480.

A grain is smaller than a troy ounce: it takes 480 grains to make one troy ounce.

Worked examples

1 grain1 gr × 0.002083333333 = 0.002083333333 oz t
5 grains5 gr × 0.002083333333 = 0.01041666667 oz t
10 grains10 gr × 0.002083333333 = 0.02083333333 oz t
20 grains20 gr × 0.002083333333 = 0.04166666667 oz t
100 grains100 gr × 0.002083333333 = 0.2083333333 oz t

Grains to troy ounces conversion table

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

Grains to troy ounces: 0.1–10 gr
Grains (gr)	Troy ounces (oz t)
0.1 gr	0.00020833333 oz t
0.25 gr	0.00052083333 oz t
0.5 gr	0.0010416667 oz t
1 gr	0.0020833333 oz t
2 gr	0.0041666667 oz t
3 gr	0.00625 oz t
4 gr	0.0083333333 oz t
5 gr	0.010416667 oz t
6 gr	0.0125 oz t
7 gr	0.014583333 oz t
8 gr	0.016666667 oz t
9 gr	0.01875 oz t
10 gr	0.020833333 oz t

Grains to troy ounces: 12–1,000 gr
Grains (gr)	Troy ounces (oz t)
12 gr	0.025 oz t
15 gr	0.03125 oz t
20 gr	0.041666667 oz t
25 gr	0.052083333 oz t
30 gr	0.0625 oz t
40 gr	0.083333333 oz t
50 gr	0.10416667 oz t
75 gr	0.15625 oz t
100 gr	0.20833333 oz t
250 gr	0.52083333 oz t
500 gr	1.0416667 oz t
1,000 gr	2.0833333 oz t

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).

Troy ounce (oz t)

480 grains or 31.1034768 g, about 10% heavier than an ordinary ounce. Gold, silver and platinum prices are quoted per troy ounce. One troy ounce equals 0.0311034768 kilograms (kg).

Frequently asked questions

How many troy ounces are in one grain?

There are 0.002083333333 troy ounces in one grain, and this value is exact by definition.

How do I convert grains to troy ounces?

Multiply the number of grains by 0.002083333333. For example, 10 gr × 0.002083333333 = 0.02083333333 oz t.

How many grains are in one troy ounce?

One troy ounce equals 480 grains. That is the reverse factor, 1 ÷ 0.002083333333.

What is 10 grains in troy ounces?

10 gr = 0.02083333333 oz t.

Is this gr to oz t 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 Troy Ounces Converter