Grain (gr)
The grain is used in ballistics, historical pharmacy, and some jewelry measurements.
History: the grain comes from the mass of a barley or wheat grain and survives in ballistics and old apothecary measures.
Quickly convert grains to ounces without lookup tables or manual math.
This page is focused on converting grains to ounces. Type a number into the first field and the result appears immediately in the second field.
Example: 1 gr = 0.0022857143 oz. Conversion formula: result = value × 6.479891E-5 / 0.028349523125.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The grain is used in ballistics, historical pharmacy, and some jewelry measurements.
History: the grain comes from the mass of a barley or wheat grain and survives in ballistics and old apothecary measures.
The ounce is used for small masses, food, precious metals, and English-language recipes.
History: the ounce goes back to the Roman uncia, one twelfth; in the avoirdupois system it became 1/16 of a pound.
Enter a value in the Grain field. The converter applies the formula "result = value × 6.479891E-5 / 0.028349523125" and immediately shows the result in ounces.
1 gr = 0.0022857143 oz.
Yes. Use the swap button or choose the reverse pair from the full conversion list.