| 311 mg * | 0.001 g | = 0.311 g | 
| 1 mg | 
| Måleenhed | Vægt | 
|---|---|
| Mikrogram | 311000.0 µg | 
| Milligram | 311.0 mg | 
| Gram | 0.311 g | 
| Unse | 0.0109702022 oz | 
| Pund | 0.0006856376 lbs | 
| Kilogram | 0.000311 kg | 
| Stone | 4.89741e-05 st | 
| US Ton | 3.428e-07 ton | 
| Ton | 3.11e-07 t | 
| Imperial Ton | 3.061e-07 Long tons | 
