Convert Grain to troy ounces
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 Grain = 0.00208337 troy ounces
troy ounces = Grain × 0.0020833684
Convert any amount
Grain to troy ounces table
| Grain | troy ounces |
|---|---|
| 0.25 Grain | 0.000520842 troy ounces |
| 0.5 Grain | 0.00104168 troy ounces |
| 1 Grain | 0.00208337 troy ounces |
| 2 Grain | 0.00416674 troy ounces |
| 3 Grain | 0.00625011 troy ounces |
| 4 Grain | 0.00833347 troy ounces |
| 5 Grain | 0.0104168 troy ounces |
| 10 Grain | 0.0208337 troy ounces |
| 20 Grain | 0.0416674 troy ounces |
| 25 Grain | 0.0520842 troy ounces |
| 50 Grain | 0.104168 troy ounces |
| 100 Grain | 0.208337 troy ounces |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 troy ounces are in a Grain?
1 Grain = 0.00208337 troy ounces. Multiply the number of Grain by 0.0020833684 to get troy ounces.
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 Grain to troy ounces. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/grain-to-troy-ounce-si
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