Density and Mass
oz ttodwt
Convert troy ounces (oz t) to pennyweights (troy) (dwt).
Factor1 oz t = 20 dwt
Converter
oz t
Accepts numbers or expressions, e.g. 150 + 14.7
Result
dwt
Rendered to 6 significant figures.
Formula
Formula
dwt = oz t × 20
Multiply any value in troy ounces by 20 to obtain the value in pennyweights (troy).
Worked example
Convert 1 oz t to dwt.
- 01Start with 1 oz t.
- 02Multiply by the conversion factor: 1 × 20 = 20 dwt.
Result1 oz t = 20 dwt
Conversion table
| oz t | dwt |
|---|---|
| 1 | 20 |
| 2 | 40 |
| 5 | 100 |
| 10 | 200 |
| 20 | 400 |
| 50 | 1000 |
| 100 | 2000 |
| 200 | 4000 |
| 500 | 10000 |
| 1000 | 20000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from oz t to dwt?
1 oz t equals 20 dwt. To convert, multiply the value in troy ounces by 20.
How do I convert 1 oz t to dwt?
1 oz t = 20 dwt. For any value, multiply by 20.
How do I convert dwt back to oz t?
Divide by the same factor — or equivalently, multiply by 0.05. So 1 dwt = 0.05 oz t.
When would I need to convert troy ounce to pennyweight (troy)?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).