| 300 mg * | 0.001 g | = 0.3 g | 
| 1 mg | 
| Jednostka miary | Masa | 
|---|---|
| Mikrogram | 300000.0 µg | 
| Milligram | 300.0 mg | 
| Gram | 0.3 g | 
| Uncja | 0.0105821886 oz | 
| Funt | 0.0006613868 lbs | 
| Kilogram | 0.0003 kg | 
| Kamień | 4.72419e-05 st | 
| Krótka Tona | 3.307e-07 ton | 
| Tona | 3e-07 t | 
| Długa Tona | 2.953e-07 Long tons | 
