Liters per second to cubic feet per minute
Type a value in liters per second to see it in cubic feet per minute straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the liters per second box.
- Read the result in cubic feet per minute as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
CFM = L/s × 2.118880003
Multiply the value in liters per second by 2.118880003 to get cubic feet per minute.
Example
To convert 25 L/s to cubic feet per minute: 25 × 2.118880003 = 52.972 CFM.
Conversion table
| Liters per second (L/s) | Cubic feet per minute (CFM) |
|---|---|
| 1 | 2.11888 |
| 2 | 4.23776 |
| 3 | 6.35664 |
| 5 | 10.5944 |
| 10 | 21.1888 |
| 20 | 42.3776 |
| 25 | 52.972 |
| 50 | 105.944 |
| 100 | 211.888 |
| 250 | 529.72 |
| 500 | 1,059.44 |
| 1,000 | 2,118.88 |
About the units
- Liter per second
- One liter passing each second, 0.001 m³/s, used in ventilation design and drainage networks.
- Cubic foot per minute
- One cubic foot (28.316846592 L) passing each minute, the airflow unit for AC units, fans and ventilation.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many cubic feet per minute are in one liter per second?
1 L/s = 2.11888 CFM exactly.
How do I convert liters per second to cubic feet per minute?
Use CFM = L/s × 2.118880003. For example, 25 L/s = 52.972 CFM.
How many liters per second are in one cubic foot per minute?
1 CFM = 0.471947 L/s.
How do I convert liters per minute to US gallons per minute?
One US gallon per minute is exactly 3.785411784 L/min, so divide the liters figure by 3.785411784. For example, 20 L/min is about 5.28 US gpm.
What does CFM mean on AC units and fans?
CFM stands for cubic feet per minute and describes how much air a unit moves. One CFM equals 1.69901079552 cubic meters per hour or 0.4719474432 liters per second.