Convert ounces to grains

Ounces to grains. Enter a value to convert, or use the ounces to grains chart further down the page.

1 oz = 437.5 gr

1 ounce equals 437.5 grains. Going the other way, 1 grain = 0.002285714286 ounces.

How to convert ounces to grains

To convert ounces to grains, multiply the ounce value by 437.5. You can also divide by 0.002285714286 to get the same answer.

gr = oz × 437.5

Convert 15 oz to grains:

15 oz = 6,562.5 gr

Use this ounces to grains table for quick reference without typing anything.

The avoirdupois ounce is one sixteenth of a pound, or exactly 28.349523125 grams. Do not confuse it with the fluid ounce, which measures volume.

The grain is exactly 64.79891 milligrams. It survives as the unit for bullet and gunpowder weights and for pharmaceutical aspirin doses.

How many grains are in an ounce?

1 ounces equals 437.5 grains. Going the other way, 1 grains is 0.002285714286 ounces.

How do you convert ounces to grains?

To convert ounces to grains, multiply the ounce value by 437.5. You can also divide by 0.002285714286 to get the same answer.

What is 10 ounces in grains?

10 ounces equals 4,375 grains. The conversion chart on this page lists the other values people look up most often.