Grain Converter

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Source - Grain

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.

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: June 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.