Grain to Gram Converter 2025 - Mass Conversion Calculator

Grain to Gram Converter

Convert grains to grams for precise weight measurements

Formula: grams = grains × 0.06479891

Note: 1 grain = 0.06479891 grams

About Grains

The grain is a traditional unit of mass based on the weight of a grain of barley.

  • Used in ammunition and bullets
  • Common in jewelry and precious metals
  • 1 grain = 1/7000 pound
  • Symbol: gr

About Grams

The gram is a metric unit of mass commonly used worldwide.

  • Standard metric mass unit
  • Used in science and cooking
  • 1 gram = 1/1000 kilogram
  • Symbol: g

Mass Conversion Examples

Grains Grams Application
1 gr 0.0648 g Small jewelry
15.432 gr 1 g Standard conversion
100 gr 6.48 g Bullet weight
500 gr 32.4 g Heavy bullet

Conversion Formula & Historical Notes

Formula

Grams = Grains × 0.06479891

Grains = Grams ÷ 0.06479891

1 grain = 64.79891 milligrams

Applications

  • • Ammunition and bullet weights
  • • Precious metals and jewelry
  • • Pharmaceutical measurements
  • • Traditional weight systems