Convert ounce to grain
1 oz = 437.5 gr
1 oz = 437.5 gr
1 oz in every mass unit
| unified atomic mass unit (dalton) | 1.7072e+25 u |
| picogram | 28,350,000,000,000 pg |
| nanogram | 28,350,000,000 ng |
| microgram | 28,350,000 μg |
| milligram | 28,350 mg |
| centigram | 2,835 cg |
| grain | 437.5 gr |
| metric carat | 141.75 ct |
| gram | 28.35 g |
| pennyweight | 18.229 dwt |
| dram | 16 dr |
| ounce | 1 oz |
| troy ounce | 0.91146 oz t |
| troy pound | 0.075955 lb t |
| pound | 0.0625 lb |
| kilogram | 0.02835 kg |
| stone | 0.0044643 st |
| slug | 0.0019426 slug |
| US hundredweight | 0.000625 cwt |
| UK long hundredweight | 0.00055804 cwt (UK) |
| quintal | 0.0002835 q |
| US short ton | 0.00003125 ton |
| metric tonne | 0.00002835 t |
| UK long ton | 0.000027902 long ton |
| kilotonne | 2.8350e-08 kt |
| megatonne | 2.8350e-11 Mt |
| gigatonne | 2.8350e-14 Gt |
| Earth mass | 4.7469e-27 Mearth |
| solar mass | 1.4257e-32 Msun |
How the conversion works
Multiply by 437.5 to go from ounce to grain, or divide by it to go back. Every conversion on this site routes through the SI value (kg) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? grain to ounce — 1 gr = 0.002285714286 oz.
ounce to grain — common values
| 1 oz | 437.5 gr |
| 2 oz | 875 gr |
| 3 oz | 1,312.5 gr |
| 5 oz | 2,187.5 gr |
| 10 oz | 4,375 gr |
| 15 oz | 6,562.5 gr |
| 20 oz | 8,750 gr |
| 25 oz | 10,937.5 gr |
| 50 oz | 21,875 gr |
| 75 oz | 32,812.5 gr |
| 100 oz | 43,750 gr |
| 250 oz | 109,375 gr |
| 500 oz | 218,750 gr |
| 1000 oz | 437,500 gr |