Grain to Troy Ounce Converter

Mass Converter

26 units available

Decimals:

From

To

0.002083

1 gr = 0.002083 oz t

Formula:

oz t = gr × 0.0020833333

With your value: 1 gr = 0.00208333 oz t

How big is that?

Everyday references on a logarithmic scale, all expressed in grain so you can sanity-check the result.

Your value1.00 gr

Paperclip (15× your value)15.4 gr

AA battery (3.7e+2× your value)370 gr

Can of soda (6.0e+3× your value)6.02e+3 gr

Bag of sugar (1.5e+4× your value)1.54e+4 gr

House cat (6.9e+4× your value)6.94e+4 gr

Other Grain to Troy Ounce conversions

2 gr to oz t 3 gr to oz t 4 gr to oz t 5 gr to oz t 6 gr to oz t 7 gr to oz t 8 gr to oz t

Grain to Troy Ounce Conversion Table

Grain (gr)	Troy Ounce (oz t)
0.5	0.001042
1	0.002083
2	0.004167
5	0.010417
10	0.020833
15	0.03125
20	0.041667
25	0.052083
50	0.104167
100	0.208333
250	0.520833
500	1.041667
1000	2.083333

Troy Ounce to Grain Conversion Table

Troy Ounce (oz t)	Grain (gr)
0.5	240
1	480
2	960
5	2,400
10	4,800
15	7,200
20	9,600
25	12,000
50	24,000
100	48,000
250	120,000
500	240,000
1000	480,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Grain (gr)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Troy Ounce (oz t)

Mass

Exact conversion

1 troy ounce = 480 grains = 0.031 103 476 8 kg exactly. Used for precious metals only.

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Grain to Troy Ounce

To convert from Grain (gr) to Troy Ounce (oz t), multiply the value by 0.0020833333.

Formula: oz t = gr × 0.0020833333

Reverse: gr = oz t × 480

Step-by-Step Example

Start with your value in Grain. For example: 5 gr
Multiply by the conversion factor: 5 x 0.0020833333
The result is: 0.010417 oz t

About Grain

The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.

Common uses: ammunition, archery, pharmacy (historic).

About Troy Ounce

The troy ounce equals approximately 31.1 grams and is used for weighing precious metals like gold, silver, and platinum.

Common uses: gold trading, silver markets, precious metals.

Frequently Asked Questions

How many Troy Ounce are in 1 Grain?

There are exactly 0.0020833333 Troy Ounce in 1 Grain. This means the conversion factor from Grain to Troy Ounce is 0.0020833333.

What is the formula to convert Grain to Troy Ounce?

The formula to convert Grain to Troy Ounce is: oz t = gr × 0.0020833333. For example, to convert 10 Grain to Troy Ounce, you would multiply 10 by 0.0020833333.

What is a Grain?