Grain to Gram Converter
Convert between grains and grams weight units
Weight Conversion
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Conversion Result
1 grain = 0.06479891 grams (exact)
Convert Grain to Gram
Looking to convert grain (gr) to gram (g)? Whether you’re measuring medicine, ammunition, or precious metals, this simple guide and conversion chart will help you accurately convert grains into grams.
Grain to Gram Conversion Table
| Grain (gr) | Gram (g) |
| 0.01 gr | 0.0006479891 g |
| 0.1 gr | 0.006479891 g |
| 1 gr | 0.06479891 g |
| 2 gr | 0.12959782 g |
| 3 gr | 0.19439673 g |
| 5 gr | 0.32399455 g |
| 10 gr | 0.6479891 g |
| 20 gr | 1.2959782 g |
| 50 gr | 3.2399455 g |
| 100 gr | 6.479891 g |
| 1000 gr | 64.7989100002 g |
How to Convert Grain to Gram
To convert grains to grams, multiply the number of grains by the conversion factor:
1 grain = 0.06479891 grams
So the formula is:
Grams = Grains × 0.06479891
To reverse the process:
1 gram = 15.4323583529 grains
Example: Convert 15 Grains to Grams
15 × 0.06479891 = 0.97198365 g
So, 15 grains equals approximately 0.972 grams.
What Is a Grain?
A grain (abbreviated as gr) is a historical unit of mass based on the weight of a single grain of cereal. It is commonly used today in the measurement of bullets, gunpowder, and sometimes in pharmacy.
- 1 grain = 0.06479891 grams
- Mostly used in the US and UK for precision mass measurements
What Is a Gram?
A gram (g) is a metric unit of mass used worldwide in almost every application from kitchen ingredients to laboratory measurements.
- 1 gram = 15.4323583529 grains
- A standard unit in the metric system
Common Uses for Grain to Gram Conversion
- Ammunition reloading and firearm measurements
- Jewelry and precious metal weights
- Pharmaceutical and medical dosage measurements
- Historical research and antique weighing units