Convert Ounce to Grain
1 ounce = 437.5 grains (oz to gr).
A ounce is larger than a grain — one ounce contains 437.5 grains. Both units describe weight, and the reverse is just as easy — one grain equals 0.00228571 ounces. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 oz = 437.5 gr
How to convert Ounces to Grains
Multiply the ounce value by 437.5 to get grains.
Example: 10 ounces = 4,375 grains.
Ounce to Grain Conversion Chart
| Ounces | Grains |
|---|---|
| 1 oz | 437.5 gr |
| 2 oz | 875 gr |
| 3 oz | 1,312.5 gr |
| 5 oz | 2,187.5 gr |
| 10 oz | 4,375 gr |
| 20 oz | 8,750 gr |
| 25 oz | 10,937.5 gr |
| 50 oz | 21,875 gr |
| 100 oz | 43,750 gr |
| 1000 oz | 437,500 gr |
Frequently Asked Questions
- How many grains are in a ounce?
- There are 437.5 grains in 1 ounce.
- How do you convert ounces to grains?
- Multiply the ounce value by 437.5 to get grains.
- What is 5 ounces in grains?
- 5 ounces equals 2,187.5 grains.
- What is 100 ounces in grains?
- 100 ounces equals 43,750 grains.
- What is 1 grain in ounces?
- 1 grain equals 0.0022857143 ounces.
- Is this ounce to grain converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.