Volumetric flow
Convert litre per hour (L/h) to cubic metre per hour (m³/h). Volumetric flow rate is the volume of fluid passing a point per unit time — the basis for line sizing, pump duty, and instrument ranging.
1 L/h = 0.001 m³/h
To convert litre per hour to cubic metre per hour, multiply the L/h value by 0.001. To go the other way, divide by 0.001 (or multiply by 1000).
| L/h | m³/h |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Pump and line duties are quoted in m³/h or US gpm; instrument and utility flows often in L/min or ft³/s.
Volumetric flow depends on temperature and pressure for gases — convert on the same basis (actual vs standard) to avoid errors.
Worked example. A flow rate of 3600000 L/h is 3600 m³/h.
Multiply the value in L/h by 0.001 to get m³/h. For example, 10 L/h = 0.01 m³/h.
1 L/h equals 0.001 m³/h.
Pump and line duties are quoted in m³/h or US gpm; instrument and utility flows often in L/min or ft³/s.