The Weight Measurement Ratio (WM Ratio) is the Volume on Weight ratio that is used to calculate a Volumetric Weight.
Airlines will also call this sometimes density instead of Weight measurement.
These ratio's can be displayed in various ways.
| WM Ratio | Ratio in tonne/m³ | Ratio in kg/cm³ | Ratio in kg/m³ | Ratio in kg/m³ | Ratio in kg/in³ | Ratio in lb/in³ | |
|---|---|---|---|---|---|---|---|
| 1:1 | 1 t/1 m³ | 1 kg/1000 cm³ | 1 kg/ 0.001 m³ | 1000 kg/ 1 m³ | 1/61 | 1/27 | |
| 1:2 | 1 t/2 m³ | 1 kg/2000 cm³ | 1 kg/ 0.002 m³ | 500 kg/ 1 m³ | 1/122 | 1/55 | |
| 1:3 | 1 t/3 m³ | 1 kg/3000 cm³ | 1 kg/ 0.003 m³ | 333 kg/ 1 m³ | 1/183 | 1/83 | |
| 1:4 | 1 t/4 m³ | 1 kg/4000 cm³ | 1 kg/ 0.004 m³ | 250 kg/ 1 m³ | 1/244 | 1/111 | |
| 1:5 | 1 t/5 m³ | 1 kg/5000 cm³ | 1 kg/ 0.005 m³ | 200 kg/ 1 m³ | 1/305 | 1/138 | |
| 1:6 | 1 t/6 m³ | 1 kg/6000 cm³ | 1 kg/ 0.006 m³ | 167 kg/ 1 m³ | 1/366 | 1/166 | |
| 1:7 | 1 t/7 m³ | 1 kg/7000 cm³ | 1 kg/ 0.007 m³ | 143 kg/ 1 m³ | 1/427 | 1/194 | |
| 1:8 | 1 t/8 m³ | 1 kg/8000 cm³ | 1 kg/ 0.008 m³ | 125 kg/ 1 m³ | 1/488 | 1/221 | |
| 1:9 | 1 t/9 m³ | 1 kg/9000 cm³ | 1 kg/ 0.009 m³ | 111 kg/ 1 m³ | 1/549 | 1/249 | |
| 1:10 | 1 t/10 m³ | 1 kg/10000 cm³ | 1 kg/ 0.010 m³ | 100 kg/ 1 m³ | 1/610 | 1/277 |