Density and Mass
gtogr
Convert grams (g) to grains (gr).
Factor1 g = 15.43236 gr
Converter
g
Accepts numbers or expressions, e.g. 150 + 14.7
Result
gr
Rendered to 6 significant figures.
Formula
Formula
gr = g × 15.43236
Multiply any value in grams by 15.43236 to obtain the value in grains.
Worked example
Convert 1 g to gr.
- 01Start with 1 g.
- 02Multiply by the conversion factor: 1 × 15.43236 = 15.4324 gr.
Result1 g = 15.4324 gr
Conversion table
| g | gr |
|---|---|
| 1 | 15.432 |
| 2 | 30.865 |
| 5 | 77.162 |
| 10 | 154.32 |
| 20 | 308.65 |
| 50 | 771.62 |
| 100 | 1543.2 |
| 200 | 3086.5 |
| 500 | 7716.2 |
| 1000 | 15432 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from g to gr?
1 g equals 15.43236 gr. To convert, multiply the value in grams by 15.43236.
How do I convert 1 g to gr?
1 g = 15.4324 gr. For any value, multiply by 15.43236.
How do I convert gr back to g?
Divide by the same factor — or equivalently, multiply by 0.06479891. So 1 gr = 0.0647989 g.
When would I need to convert gram to grain (troy/apothecary)?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).