Convert troy ounces to Pennyweight
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.
Quick answer
1 troy ounce = 20 Pennyweight
1 troy ounce = 20 Pennyweight. Pennyweight is a traditional mass unit from Western Europe.
Convert any amount
troy ounces to Pennyweight table
| troy ounces | Pennyweight |
|---|---|
| 0.25 troy ounces | 5.00001 Pennyweight |
| 0.5 troy ounces | 10 Pennyweight |
| 1 troy ounce | 20 Pennyweight |
| 2 troy ounces | 40.0001 Pennyweight |
| 3 troy ounces | 60.0001 Pennyweight |
| 4 troy ounces | 80.0002 Pennyweight |
| 5 troy ounces | 100 Pennyweight |
| 10 troy ounces | 200 Pennyweight |
| 20 troy ounces | 400.001 Pennyweight |
| 25 troy ounces | 500.001 Pennyweight |
| 50 troy ounces | 1,000 Pennyweight |
| 100 troy ounces | 2,000 Pennyweight |
About the Pennyweight
1 Troy Ounce = 20 Pennyweight.
- Symbol
- dwt
- Value in SI
- 1 Pennyweight = 0.00155517 kilogram
- Typical use
- jewellery
- 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.
Frequently asked
How many Pennyweight are in a troy ounce?
1 troy ounce = 20 Pennyweight. Multiply the number of troy ounces by 20.000049 to get Pennyweight.
What is Pennyweight used for?
1 Troy Ounce = 20 Pennyweight. It is classified as active and dates from the modern period.
Is the Pennyweight 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 Pennyweight 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 Pennyweight. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/troy-ounce-si-to-pennyweight
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