Convert Ounce to Grain - Free Calculator
Fast, accurate weight conversion calculator. Convert ounce to grain instantly with precise results.
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How to Convert Ounce to Grain
Use this free online calculator to convert Ounce to Grain instantly. This weight conversion tool provides accurate results for all your measurement needs.
Quick Reference
Ounce to Grain Conversion Formula
To convert Ounce to Grain, multiply by 437.5.
To convert Grain back to Ounce, divide by 437.5 (or multiply by 0.00228571).
About These Units
About Ounce
The <b>ounce</b> is a traditional unit of weight. The <b>avoirdupois ounce</b>, the unit commonly used in the United States, is 1/16 pound or about 28.3495 grams. The avoirdupois ounce also equals 175/192 = about 0.911 457 troy ounce or 437.5 grains. The word ounce is from the Latin uncia, meaning a 1/12 part, because the Roman pound was divided into 12 ounces. The word "inch," meaning 1/12 foot, has the same root.
About Grain
The grain is a traditional unit of weight. The grain, equal to 1/480 troy ounce, or exactly 64.798 91 milligrams, was the legal foundation of traditional English weight systems, with various pounds being defined as a specified number of grains: 5760 grains in a troy pound and 7000 grains in an avoirdupois pound, for example. In the version of the troy system used by jewelers, there are 24 grains in a pennyweight and 20 pennyweight in an ounce. In the version used by apothecaries, there are 20 grains in a scruple, 3 scruples in a dram, and 8 drams in an ounce. Originally the grain was defined in England as the weight of a barleycorn. This made the English grain larger the corresponding grain units of France and other nations of the Continent, because those units were based on the weight of the smaller wheat grain.
Ounce to Grain Conversion Table
| Ounce | Grain | Grain | Ounce |
|---|---|---|---|
| 0.1 | 43.75 | 0.1 | 0.000228571 |
| 0.5 | 218.75 | 0.5 | 0.00114286 |
| 1 | 437.5 | 1 | 0.00228571 |
| 2 | 875 | 2 | 0.00457143 |
| 5 | 2,187.5 | 5 | 0.0114286 |
| 10 | 4,375 | 10 | 0.0228571 |
| 20 | 8,750 | 20 | 0.0457143 |
| 25 | 10,937.5 | 25 | 0.0571429 |
| 50 | 21,875 | 50 | 0.114286 |
| 100 | 43,750 | 100 | 0.228571 |
| 250 | 109,375 | 250 | 0.571429 |
| 500 | 218,750 | 500 | 1.14286 |
| 1000 | 437,500 | 1000 | 2.28571 |
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