Volumetric flow
Convert cubic foot per second (ft³/s) to litre per minute (L/min). 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 ft³/s = 1699.011 L/min
To convert cubic foot per second to litre per minute, multiply the ft³/s value by 1699.011. To go the other way, divide by 1699.011 (or multiply by 0.0005885778).
| ft³/s | L/min |
|---|---|
| 1 | 1699.011 |
| 2 | 3398.022 |
| 5 | 8495.054 |
| 10 | 16990.11 |
| 25 | 42475.27 |
| 50 | 84950.54 |
| 100 | 169901.1 |
| 250 | 424752.7 |
| 500 | 849505.4 |
| 1000 | 1699011 |
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 35.31467 ft³/s is 60000 L/min.
Multiply the value in ft³/s by 1699.011 to get L/min. For example, 10 ft³/s = 16990.11 L/min.
1 ft³/s equals 1699.011 L/min.
Pump and line duties are quoted in m³/h or US gpm; instrument and utility flows often in L/min or ft³/s.