| 31.9 mg * | 0.001 g | = 0.0319 g | 
| 1 mg | 
| Eenhede van meting | Gewig | 
|---|---|
| Mikrogram | 31900.0 µg | 
| Milligram | 31.9 mg | 
| Gram | 0.0319 g | 
| ons | 0.0011252394 oz | 
| Pond | 7.03275e-05 lbs | 
| Kilogram | 3.19e-05 kg | 
| Stone | 5.0234e-06 st | 
| Amerikaanse ton | 3.52e-08 ton | 
| Ton | 3.19e-08 t | 
| Imperial ton | 3.14e-08 Long tons | 
