| Metric System | = | United States Standard |
| 1 kg/m3 m3 is m cubed | = | 0.062428 lb/cu ft |
| 1 kg/dm3 dm3 is dm cubed | = | 62.428 lb/cu ft |
| 1 g/ml | = | 8.3452 lb/gal |
| 1 ppm | = | 0.05841 grain/gal |
| 1 ppm | = | 1 mg/liter |
| 1 ppm | = | 1 ug/ml |
| United States Standard | = | metric System |
| 1 lb/cu ft | = | 16.0185 kg/m3 m3 is m cubed |
| 1 lb/cu ft | = | 0.01602 kg/dm3 dm3 is dm is cubed |
| 1 lb/gal | = | 0.1198 g/ml |
| 1 grain/gal | = | 17.12 ppm |
| = | ||
| = |
