Ounce to Grain Converter 2026 - oz to gr Calculator | Thiyagi
Ounce to Grain Converter
Convert between ounces (oz) and grains (gr) for precious metals, jewelry, ammunition, and traditional weight measurements
Standard weight unit
Traditional small weight unit
Enter a value to see the conversion result
Weight Reference
Ounces
⇔
Grains
0.1 oz
⇔
43.75 gr
0.25 oz
⇔
109.375 gr
0.5 oz
⇔
218.75 gr
1 oz
⇔
437.5 gr
2 oz
⇔
875 gr
5 oz
⇔
2,187.5 gr
Traditional Applications
Precious Metals:
• Gold coins: 0.5-1 oz (218-437 gr)
• Silver jewelry: 0.1-2 oz (44-875 gr)
• Platinum items: 0.25-1 oz
• Investment coins: 1 oz (437.5 gr)
Ammunition & Archery:
• Bullet weights: 50-500 gr (0.11-1.14 oz)
• Arrow points: 100-200 gr
• Powder charges: 10-100 gr
• Projectile mass: 25-750 gr
Jewelry & Gems:
• Pearl weights: 1-50 gr (0.002-0.11 oz)
• Small gems: 5-100 gr
• Watch components: 1-20 gr
• Precious stone settings: 10-200 gr