milligram to grain
Convert milligram (mg) to grain (gr). Use an editable mass converter, conversion formula, and reference table.
1 mg = 0.01543235835 gr
Conversion formula
One milligram equals 0.01543235835 grain. Multiply your value in milligram by this factor to get grain. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 milligram:5 × 0.01543235835 = 0.07716179176 gr
Conversion table
| milligram (mg) | grain (gr) |
|---|---|
| 0.01 | 0.0001543235835 |
| 0.1 | 0.001543235835 |
| 1 | 0.01543235835 |
| 2 | 0.03086471671 |
| 5 | 0.07716179176 |
| 10 | 0.1543235835 |
| 25 | 0.3858089588 |
| 50 | 0.7716179176 |
| 100 | 1.543235835 |
| 1000 | 15.43235835 |
About these measurements
Mass quantifies an amount of matter.
The base reference used here is the gram. One milligram is 0.001 base units; one grain is 0.06479891 base units.
Important distinctions
Mass is not force. Avoirdupois ounces and troy ounces have different masses.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert mg to gr?
Multiply the quantity in mg by 0.01543235835. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the grain to milligram converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
