Conversion from Grain (gr) to Ounce (oz) and vice versa

Updated on by Stefan Banse

Here you can convert the Unit of weight Grain into the unit Ounce and vice versa you can convert Ounce into Grain. By clicking the "Swap units" icon, you will always obtain the desired conversion in the calculation result, i.e., gr to oz or oz to gr. With the following calculator you can also calculate any other Unit of weight.

Info about Grain

The grain is the smallest classical English unit of mass. The usual pound contains 7 000 grains.

1 grain = 64.79891 mg

1 gram = 15.43236 grain

The unit is increasingly replaced by milligrams or carats. Grain, however, is still used for hand gun bullets, arrowheads or ammunition powder.

Info about Ounce

The common ounce (English: international avoirdupois ounce) as unit of weight is very common in the Anglo-American area but does not belong to the International System of Units (Système international d'unités). It should not be confused with the troy ounce or apothecaries ounce and is frequently used in many countries to indicate the weight of foods.

One ounce is equivalent to 28.349523125 grams, and one gram is equivalent to 0.035273961 ounces.

Basis for conversion Grain (gr) to Ounce (oz)

The abbreviation for the Unit of weight Grain is gr. The abbreviation for the Unit of weight Ounce is oz.

Formula for the conversion of Grain (gr) to Ounce (oz)

The calculation from Grain to Ounce shall be made using the following conversion formula:

 Conversion formula Grain to Ounce 

Determine the number of Ounce from Grain

Grain × 0.0022857142857143


Formula for the conversion of Ounce (oz) to Grain (gr)

The calculation from Ounce to Grain shall be made using the following conversion formula:

 Conversion formula Ounce to Grain 

Determine the number of Grain from Ounce

Ounce × 437.5


Overview table: How many Grain are how many Ounce?

Grain grOunce oz
0.01 gr => 0.00002 oz
0.02 gr => 0.00004 oz
0.03 gr => 0.00006 oz
0.04 gr => 0.00009 oz
0.05 gr => 0.00011 oz
0.06 gr => 0.00013 oz
0.07 gr => 0.00016 oz
0.08 gr => 0.00018 oz
0.09 gr => 0.00020 oz
0.10 gr => 0.00022 oz
0.20 gr => 0.00045 oz
0.30 gr => 0.00068 oz
0.40 gr => 0.00091 oz
0.50 gr => 0.00114 oz
0.60 gr => 0.00137 oz
0.70 gr => 0.00160 oz
0.80 gr => 0.00182 oz
0.90 gr => 0.00205 oz
1 gr => 0.00228 oz
2 gr => 0.00457 oz
3 gr => 0.00685 oz
4 gr => 0.00914 oz
5 gr => 0.01142 oz
6 gr => 0.01371 oz
7 gr => 0.01600 oz
8 gr => 0.01828 oz
9 gr => 0.02057 oz
10 gr => 0.02285 oz
20 gr => 0.04571 oz
30 gr => 0.06857 oz
40 gr => 0.09142 oz
50 gr => 0.11428 oz
60 gr => 0.13714 oz
70 gr => 0.16000 oz
80 gr => 0.18285 oz
90 gr => 0.20571 oz
100 gr => 0.22857 oz
200 gr => 0.45714 oz
300 gr => 0.68571 oz
400 gr => 0.91428 oz
500 gr => 1.14285 oz
600 gr => 1.37142 oz
700 gr => 1.60000 oz
800 gr => 1.82857 oz
900 gr => 2.05714 oz
1 000 gr => 2.28571 oz

Overview table: How many Ounce are how many Grain?

Ounce ozGrain gr
0.01 oz => 4.37500 gr
0.02 oz => 8.75000 gr
0.03 oz => 13.12500 gr
0.04 oz => 17.50000 gr
0.05 oz => 21.87500 gr
0.06 oz => 26.25000 gr
0.07 oz => 30.62500 gr
0.08 oz => 35 gr
0.09 oz => 39.37500 gr
0.10 oz => 43.75000 gr
0.20 oz => 87.50000 gr
0.30 oz => 131.25000 gr
0.40 oz => 175 gr
0.50 oz => 218.75000 gr
0.60 oz => 262.50000 gr
0.70 oz => 306.25000 gr
0.80 oz => 350 gr
0.90 oz => 393.75000 gr
1 oz => 437.50000 gr
2 oz => 875 gr
3 oz => 1 312.50000 gr
4 oz => 1 750 gr
5 oz => 2 187.50000 gr
6 oz => 2 625 gr
7 oz => 3 062.50000 gr
8 oz => 3 500 gr
9 oz => 3 937.50000 gr
10 oz => 4 375 gr
20 oz => 8 750 gr
30 oz => 13 125 gr
40 oz => 17 500 gr
50 oz => 21 875 gr
60 oz => 26 250 gr
70 oz => 30 625 gr
80 oz => 35 000 gr
90 oz => 39 375 gr
100 oz => 43 750 gr
200 oz => 87 500 gr
300 oz => 131 250 gr
400 oz => 175 000 gr
500 oz => 218 750 gr
600 oz => 262 500 gr
700 oz => 306 250 gr
800 oz => 350 000 gr
900 oz => 393 750 gr
1 000 oz => 437 500 gr

Source information

As source for the information in the "Units of weight" category, we have used in particular:

Last update on June 25, 2020

The last changes in the "Units of weight" category were implemented by Stefan Banse on June 25, 2020. The main changes were:

  • Publication of the Weight converter
  • Editorial revision of all texts in this category