Back to Weight & Mass
Milligrams to Grains
Convert milligrams to grains and vice versa
Convert Milligrams to Grains
mg
gr
Conversion Formulas
1 milligram = 0.0154324 grains
1 grain = 64.79891 milligrams
Quick Reference
1 mg = 0.0154 gr
100 mg = 1.543 gr
500 mg = 7.716 gr
1 gr = 64.80 mg
10 gr = 647.99 mg
100 gr = 6479.9 mg
Convert between milligrams (mg) and grains (gr) with precision. Grains are a traditional unit of mass still used in pharmacy for medication dosages, jewelry for gemstone and pearl weights, and ammunition for bullet and powder measurements. One grain equals approximately 64.8 milligrams.
Common Use Cases
- Pharmaceutical dosage calculations
- Ammunition reloading and bullet weights
- Jewelry and gemstone measurements
- Historical recipe conversions