Cubic Foot per Second to Liter per Minute (CFS to LPM)
Convert CFS to LPM — Flow Rate converter
One cubic foot per second equals 1699.01 LPM, so to convert cubic feet per second to liters per minute you multiply the value by 1699.01. A cubic foot per second is larger than a liter per minute — going the other way, 1 LPM = 0.0005885778 CFS. For example, 10 CFS = 16990.11 LPM and 50 CFS = 84950.54 LPM.
1 CFS = 1699.01 LPM
Cubic Foot per Second to Liter per Minute formula
1 Cubic Foot per Second = 1699.01 LPM
Worked examples
- 25 CFS = 42475.27 LPM
- 100 CFS = 169901.08 LPM
Cubic Foot per Second to Liter per Minute conversion table
| Cubic Foot per Second (CFS) | Liter per Minute (LPM) |
|---|---|
| 1 | 1699.01 |
| 2 | 3398.02 |
| 3 | 5097.03 |
| 5 | 8495.05 |
| 8 | 13592.09 |
| 10 | 16990.11 |
| 12 | 20388.13 |
| 15 | 25485.16 |
| 20 | 33980.22 |
| 25 | 42475.27 |
| 50 | 84950.54 |
| 100 | 169901.08 |
| 250 | 424752.7 |
| 500 | 849505.4 |
| 1000 | 1699010.8 |
Which gallon, and which trade
The single most expensive mistake in flow conversion is the gallon. A US liquid gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres. US GPM and imperial GPM differ by about 20%, and pump datasheets frequently do not say which one they mean. Check the manufacturer's country of origin before trusting a GPM figure.
Different trades default to different units for the same physical quantity: HVAC and compressed air work in CFM, plumbing and pumps in GPM or LPM, and process and water engineering in m³/h or L/s. A specification that mixes them is usually quoting different equipment, not different flows. On this page, 1 CFS = 1699.01 LPM.
Frequently asked questions
How many liters per minute are in one cubic foot per second?
One cubic foot per second equals 1699.01 liters per minute (LPM).
How many cubic feet per second are in one liter per minute?
One liter per minute equals 0.0005885778 cubic feet per second (CFS).
How do you convert cubic feet per second to liters per minute?
1 Cubic Foot per Second = 1699.01 LPM. Use the calculator above for any value.
What is 5 CFS in LPM?
5 CFS = 8495.05 LPM.
What is 100 CFS in LPM?
100 CFS = 169901.08 LPM.
What is 10 CFS in LPM?
10 CFS = 16990.11 LPM.
What is 20 CFS in LPM?
20 CFS = 33980.22 LPM.
What is 50 CFS in LPM?
50 CFS = 84950.54 LPM.
What is 500 CFS in LPM?
500 CFS = 849505.4 LPM.
Is a cubic foot per second bigger than a liter per minute?
Yes. A cubic foot per second is larger — one cubic foot per second equals 1699.01 liters per minute (LPM).