Convert grain (gr) to ounce (oz).
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Ounce to Grain Converter (oz to gr)
Convert ounce (oz) to grain (gr).Unit Converter · Mass
Quick answer
1 ounce (oz) is equal to 437.5 grains (gr). 1 grain (gr) is approximately equal to 0.00228571 ounces (oz).
To convert oz to gr, multiply the value in ounces by 437.5. For example, 10 oz = 4,375 gr, and 100 oz = 43,750 gr.
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How to convert ounces to grains
How many grains are in an ounce? 1 ounce is 437.5 grains. This free oz to gr converter and ounce to grain calculator gives the answer instantly for any value, and the same conversion is also written as ounces to gr.
To convert ounce (oz) to grain (gr), multiply the value in ounces by 437.5.
gr = oz × 437.5
- 1
Take the value in ounces
For example, 25 oz.
- 2
Multiply by 437.5
25 × 437.5.
- 3
Read the answer in grains
25 oz = 10,937.5 gr.
Ounce to Grain conversion table
Common values from 1 to 1,000 ounces converted to grains.
| Ounce (oz) | Grain (gr) |
|---|---|
| 1 oz | 437.5 gr |
| 2 oz | 875 gr |
| 3 oz | 1,312.5 gr |
| 4 oz | 1,750 gr |
| 5 oz | 2,187.5 gr |
| 6 oz | 2,625 gr |
| 7 oz | 3,062.5 gr |
| 8 oz | 3,500 gr |
| 9 oz | 3,937.5 gr |
| 10 oz | 4,375 gr |
| 15 oz | 6,562.5 gr |
| 20 oz | 8,750 gr |
| 25 oz | 10,937.5 gr |
| Ounce (oz) | Grain (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 |
| 75 oz | 32,812.5 gr |
| 80 oz | 35,000 gr |
| 90 oz | 39,375 gr |
| 100 oz | 43,750 gr |
| 250 oz | 1,09,375 gr |
| 500 oz | 2,18,750 gr |
| 1,000 oz | 4,37,500 gr |
About ounces and grains
Ounce (oz)
An ounce (oz) is about 28.35 grams, or one sixteenth of a pound. It is used for food and small packages in the US.
Grain (gr)
A grain (gr) is about 64.8 milligrams. It is used for ammunition, archery arrows and some older pharmacy measures.
oz to gr: common questions
- How many grains are in 1 ounce?
- 1 ounce (oz) is equal to 437.5 grains (gr). In short: 1 oz = 437.5 gr.
- How do I convert ounces to grains?
- To convert oz to gr, multiply the value in ounces by 437.5. For example, 5 oz = 2,187.5 gr.
- How do I convert grains to ounces?
- To convert gr to oz, divide the value in grains by 437.5. Or open the Grain to Ounce converter, which does it for you.
- What is 10 oz in gr, and what is 100 oz?
- 10 oz = 4,375 gr, and 100 oz = 43,750 gr. The table above lists more values from 1 to 1,000.
- Is this oz to gr converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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