Cubic feet per second to liters per second
Type a value in cubic feet per second to see it in liters per second straight away, or type in the second box to convert back.
Loading the tool…
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 cubic feet per second box.
- Read the result in liters per second as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
L/s = ft³/s × 28.31684659
Multiply the value in cubic feet per second by 28.31684659 to get liters per second.
Example
To convert 25 ft³/s to liters per second: 25 × 28.31684659 = 707.921 L/s.
Conversion table
| Cubic feet per second (ft³/s) | Liters per second (L/s) |
|---|---|
| 1 | 28.3168 |
| 2 | 56.6337 |
| 3 | 84.9505 |
| 5 | 141.584 |
| 10 | 283.168 |
| 20 | 566.337 |
| 25 | 707.921 |
| 50 | 1,415.84 |
| 100 | 2,831.68 |
| 250 | 7,079.21 |
| 500 | 14,158.4 |
| 1,000 | 28,316.8 |
About the units
- Cubic foot per second
- One cubic foot passing each second, used in the US to measure river and canal discharge.
- Liter per second
- One liter passing each second, 0.001 m³/s, used in ventilation design and drainage networks.
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 liters per second are in one cubic foot per second?
1 ft³/s = 28.3168 L/s exactly.
How do I convert cubic feet per second to liters per second?
Use L/s = ft³/s × 28.31684659. For example, 25 ft³/s = 707.921 L/s.
How many cubic feet per second are in one liter per second?
1 L/s = 0.0353147 ft³/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.