Density and Mass
gtodwt
Convert grams (g) to pennyweights (troy) (dwt).
Factor1 g = 0.6430149 dwt
Converter
g
Accepts numbers or expressions, e.g. 150 + 14.7
Result
dwt
Rendered to 6 significant figures.
Formula
Formula
dwt = g × 0.6430149
Multiply any value in grams by 0.6430149 to obtain the value in pennyweights (troy).
Worked example
Convert 100 g to dwt.
- 01Start with 100 g.
- 02Multiply by the conversion factor: 100 × 0.6430149 = 64.3015 dwt.
Result100 g = 64.3015 dwt
Conversion table
| g | dwt |
|---|---|
| 1 | 0.64301 |
| 2 | 1.286 |
| 5 | 3.2151 |
| 10 | 6.4301 |
| 20 | 12.86 |
| 50 | 32.151 |
| 100 | 64.301 |
| 200 | 128.6 |
| 500 | 321.51 |
| 1000 | 643.01 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from g to dwt?
1 g equals 0.6430149 dwt. To convert, multiply the value in grams by 0.6430149.
How do I convert 1 g to dwt?
1 g = 0.643015 dwt. For any value, multiply by 0.6430149.
How do I convert dwt back to g?
Divide by the same factor — or equivalently, multiply by 1.555174. So 1 dwt = 1.55517 g.
When would I need to convert gram 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).