Convert Grain to 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 = 0.00228575 ounces
ounces = Grain × 0.0022857527
Convert any amount
Grain to ounces table
| Grain | ounces |
|---|---|
| 0.25 Grain | 0.000571438 ounces |
| 0.5 Grain | 0.00114288 ounces |
| 1 Grain | 0.00228575 ounces |
| 2 Grain | 0.00457151 ounces |
| 3 Grain | 0.00685726 ounces |
| 4 Grain | 0.00914301 ounces |
| 5 Grain | 0.0114288 ounces |
| 10 Grain | 0.0228575 ounces |
| 20 Grain | 0.0457151 ounces |
| 25 Grain | 0.0571438 ounces |
| 50 Grain | 0.114288 ounces |
| 100 Grain | 0.228575 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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 ounces are in a Grain?
1 Grain = 0.00228575 ounces. Multiply the number of Grain by 0.0022857527 to get 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 ounces. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/grain-to-ounce
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.