Density and Mass
kgtodwt
Convert kilograms (kg) to pennyweights (troy) (dwt).
Factor1 kg = 643.0149 dwt
Converter
kg
Accepts numbers or expressions, e.g. 150 + 14.7
Result
dwt
Rendered to 6 significant figures.
Formula
Formula
dwt = kg × 643.0149
Multiply any value in kilograms by 643.0149 to obtain the value in pennyweights (troy).
Worked example
Convert 1 kg to dwt.
- 01Start with 1 kg.
- 02Multiply by the conversion factor: 1 × 643.0149 = 643.015 dwt.
Result1 kg = 643.015 dwt
Conversion table
| kg | dwt |
|---|---|
| 1 | 643.01 |
| 2 | 1286 |
| 5 | 3215.1 |
| 10 | 6430.1 |
| 20 | 12860 |
| 50 | 32151 |
| 100 | 64301 |
| 200 | 1.2860e+5 |
| 500 | 3.2151e+5 |
| 1000 | 6.4301e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kg to dwt?
1 kg equals 643.0149 dwt. To convert, multiply the value in kilograms by 643.0149.
How do I convert 1 kg to dwt?
1 kg = 643.015 dwt. For any value, multiply by 643.0149.
How do I convert dwt back to kg?
Divide by the same factor — or equivalently, multiply by 0.001555174. So 1 dwt = 0.00155517 kg.
When would I need to convert kilogram 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).