Cubic feet per second to cubic meters per second

Type a value in cubic feet per second to see it in cubic meters per second 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

  1. Type the value in the cubic feet per second box.
  2. Read the result in cubic meters per second as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

m³/s = ft³/s × 0.02831684659

Multiply the value in cubic feet per second by 0.02831684659 to get cubic meters per second.

Example

To convert 25 ft³/s to cubic meters per second: 25 × 0.02831684659 = 0.707921 m³/s.

Conversion table

Cubic feet per second (ft³/s)Cubic meters per second (m³/s)
10.0283168
20.0566337
30.0849505
50.141584
100.283168
200.566337
250.707921
501.41584
1002.83168
2507.07921
50014.1584
1,00028.3168

About the units

Cubic foot per second
One cubic foot passing each second, used in the US to measure river and canal discharge.
Cubic meter per second
The SI unit of flow rate, one cubic meter passing each second, used for river and dam discharge.

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 meters per second are in one cubic foot per second?

1 ft³/s = 0.0283168 m³/s exactly.

How do I convert cubic feet per second to cubic meters per second?

Use m³/s = ft³/s × 0.02831684659. For example, 25 ft³/s = 0.707921 m³/s.

How many cubic feet per second are in one cubic meter per second?

1 m³/s = 35.3147 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.