1 毫克/升（mg/L）等于 0.000001 kg/L，1 千克/升（kg/L）等于 1,000,000 mg/L。
| 毫克/升 | 千克/升 |
|---|---|
| 0.01 mg/L | 0.00000001 kg/L |
| 0.1 mg/L | 0.0000001 kg/L |
| 1 mg/L | 0.000001 kg/L |
| 2 mg/L | 0.000002 kg/L |
| 3 mg/L | 0.000003 kg/L |
| 4 mg/L | 0.000004 kg/L |
| 5 mg/L | 0.000005 kg/L |
| 6 mg/L | 0.000006 kg/L |
| 7 mg/L | 0.000007 kg/L |
| 8 mg/L | 0.000008 kg/L |
| 9 mg/L | 0.000009 kg/L |
| 10 mg/L | 0.00001 kg/L |
| 20 mg/L | 0.00002 kg/L |
| 30 mg/L | 0.00003 kg/L |
| 40 mg/L | 0.00004 kg/L |
| 50 mg/L | 0.00005 kg/L |
| 60 mg/L | 0.00006 kg/L |
| 70 mg/L | 0.00007 kg/L |
| 80 mg/L | 0.00008 kg/L |
| 90 mg/L | 0.00009 kg/L |
| 100 mg/L | 0.0001 kg/L |
| 200 mg/L | 0.0002 kg/L |
| 300 mg/L | 0.0003 kg/L |
| 500 mg/L | 0.0005 kg/L |
| 1,000 mg/L | 0.001 kg/L |
| 10,000 mg/L | 0.01 kg/L |
| 千克/立方米 | 0.001 kg/m³ |
| 克/立方厘米 | 0.000001 g/cm³ |
| 克/毫升 | 0.000001 g/mL |
| 千克/升 | 0.000001 kg/L |
| 克/升 | 0.001 g/L |
| 毫克/毫升 | 0.001 mg/mL |
| 毫克/升 | 1 mg/L |
| 微克/立方米 | 1,000,000 μg/m³ |
| 磅/立方英尺 | 0.0000624279606 lb/ft³ |
| 磅/立方英寸 | 0.000000036127292 lb/in³ |
| 磅/加仑 | 0.00000834540445 lb/gal |
| 盎司/立方英寸 | 0.000000578036672 oz/in³ |
| 盎司/加仑 | 0.000133526471 oz/gal |
| 千克/立方米 | 1,000 kg/m³ |
| 克/立方厘米 | 1 g/cm³ |
| 克/毫升 | 1 g/mL |
| 千克/升 | 1 kg/L |
| 克/升 | 1,000 g/L |
| 毫克/毫升 | 1,000 mg/mL |
| 毫克/升 | 1,000,000 mg/L |
| 微克/立方米 | 1,000,000,000,000 μg/m³ |
| 磅/立方英尺 | 62.4279606 lb/ft³ |
| 磅/立方英寸 | 0.036127292 lb/in³ |
| 磅/加仑 | 8.34540445 lb/gal |
| 盎司/立方英寸 | 0.578036672 oz/in³ |
| 盎司/加仑 | 133.526471 oz/gal |