Convert troy ounces to Grain
Western Europe · European Weight · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 troy ounce = 479.992 Grain
Grain = troy ounces × 479.99193
Convert any amount
troy ounces to Grain table
| troy ounces | Grain |
|---|---|
| 0.25 troy ounces | 119.998 Grain |
| 0.5 troy ounces | 239.996 Grain |
| 1 troy ounce | 479.992 Grain |
| 2 troy ounces | 959.984 Grain |
| 3 troy ounces | 1,439.98 Grain |
| 4 troy ounces | 1,919.97 Grain |
| 5 troy ounces | 2,399.96 Grain |
| 10 troy ounces | 4,799.92 Grain |
| 20 troy ounces | 9,599.84 Grain |
| 25 troy ounces | 11,999.8 Grain |
| 50 troy ounces | 23,999.6 Grain |
| 100 troy ounces | 47,999.2 Grain |
About the Grain
Smallest traditional weight. 1 Pennyweight = 24 Grains.
- Symbol
- gr
- Value in SI
- 1 Grain = 0.0000648 kilogram
- Typical use
- jewellery, precious-metals
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI kilogram. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other european weight units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many Grain are in a troy ounce?
1 troy ounce = 479.992 Grain. Multiply the number of troy ounces by 479.99193 to get Grain.
What is Grain used for?
Smallest traditional weight. 1 Pennyweight = 24 Grains. It is classified as active and dates from the modern period.
Is the Grain value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI kilogram, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Grain conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert troy ounces to Grain. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/troy-ounce-si-to-grain
Report an incorrect value or source
Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.