Grain to Gram Converter

1 Grain = 0.06479891 Gram
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Grain vs Gram Comparison Chart

Source - GrainTarget - Gram

Grain (gr) - Definition and Overview

What is Grain?

A grain is a unit of mass that is part of the avoirdupois, apothecaries, and troy weight systems. 1 grain is equal to 0.06479891 grams. It is historically based on the weight of a single grain of cereal, such as wheat or barley.

Summary

  • A grain is a traditional unit of mass that is based on the weight of a single grain of cereal, such as wheat or barley
  • It is used in the avoirdupois, apothecaries, and troy weight systems
  • One grain is equal to approximately 0.06479891 grams.

Gram (g) - Definition and Overview

What is Gram?

The gram(g) is a unit of mass in the metric system. It was originally defined in 1795 as -the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre(1 cubic centimeter) , at the temperature of melting ice.

Summary

  • A gram is a unit of mass in the metric system
  • It was originally defined in 1795 as the absolute weight of a volume of pure water equal to the cube of the hundredth part of a meter (1 cubic centimeter) at the temperature of melting ice
  • The symbol for gram is g
  • The gram is commonly used worldwide in various fields, including science, cooking, medicine, and trade.

How to Convert Grain to Gram?

1 Grain is equal to 0.06479891 Gram. To convert Grain to Gram, use this simple formula:

Gram = Grain x 0.06479891

So, just multiply the number of Grain by 0.06479891 to get equivalent value in Gram.

Example 1:

Convert 5 Grain to Gram
5 x 0.06479891 = 0.32399455 Gram

Example 2:

Convert 7.5 Grain to Gram
7.5 x 0.06479891 = 0.485991825 Gram

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: September 1, 2026

I am a Storage Technologist with strong experience in enterprise storage systems, Angular development, and web-based tools. I enjoy building practical calculators, converters, and utilities, and I also create original cartoons. I share my tools, articles, and creative work on my personal website, rajeshvu.com.