Need to compare a pump’s output in metric terms with a U.S.‑based specification? Converting cubic meters per minute (m³/min) to cubic feet per second (ft³/s) bridges that gap instantly, letting engineers, technicians, and managers speak the same language.
Understanding the Measure: Volume Flow Rate
Volume flow rate quantifies how much space‑filled fluid passes a point each second. It combines a volume unit with a time unit, giving a clear picture of speed and capacity. In the International System, the standard is cubic meters per second (m³/s); in the Imperial system, it’s cubic feet per second (ft³/s).
What Is a Cubic Meter Per Minute (m³/min)?
A cubic meter is the volume of a cube 1 meter on each side. When we say “per minute,” we’re measuring how many of those cubes move past a point every 60 seconds. This unit is common in European‑style HVAC designs, water‑treatment plants, and industrial process charts.
What Is a Cubic Foot Per Second (ft³/s)?
A cubic foot is the volume of a cube 1 foot on each side. “Per second” captures the flow in the faster‑moving Imperial system, often used in U.S. building codes, fire‑suppression calculations, and gas‑pipeline specifications.
Conversion Factor: From m³/min to ft³/s
The exact relationship is:
- 1 m³ = 35.3146667 ft³ (exact conversion)
- 1 minute = 60 seconds
Therefore,
1 m³/min = 35.3146667 ft³ ÷ 60 s = 0.5885778 ft³/s
Rounded to four significant digits, the factor is **0.5886 ft³/s per m³/min**.
Formula at a Glance
ft³/s = (m³/min) × 0.5885778
Worked Example
Imagine a ventilation fan rated at 12 m³/min. To see how it measures in the U.S. system:
- Multiply the flow by the factor: 12 × 0.5885778 = 7.0629336 ft³/s.
- Round to a practical figure: **7.063 ft³/s**.
The fan moves roughly seven cubic feet of air each second—a useful number when matching it to duct sizing charts that use ft³/s.
Cubic Meter Per Minute to Cubic Foot Per Second Conversion Table
Each row applies the same rule: multiply cubic meters per minute by 0.5886 to get cubic feet per second (values rounded to four decimal places).
| Cubic Meter Per Minute (m³/min) | Cubic Foot Per Second (ft³/s) |
|---|---|
| 1 m³/min | 0.5886 ft³/s |
| 2 m³/min | 1.1772 ft³/s |
| 5 m³/min | 2.9429 ft³/s |
| 10 m³/min | 5.8858 ft³/s |
| 20 m³/min | 11.7716 ft³/s |
| 50 m³/min | 29.4289 ft³/s |
| 100 m³/min | 58.8578 ft³/s |
| 500 m³/min | 294.2889 ft³/s |
Practical Applications
- HVAC design: Convert fan curves from metric to Imperial to meet local code requirements.
- Water‑treatment plants: Align pump specifications with U.S. procurement documents.
- Fire‑suppression systems: Verify that sprinkler flow rates satisfy NFPA standards expressed in ft³/s.
- Process engineering: Compare reactor feed rates across multinational teams without confusion.
Quick Checklist for Accurate Conversion
- Start with the flow value in m³/min.
- Multiply by 0.5886 (or use the full factor 0.5885778 for high‑precision work).
- Round to the needed decimal place—four digits is usually sufficient.
- Confirm units: the result should read ft³/s.
Conclusion
Switching between cubic meters per minute and cubic feet per second is a matter of applying a single, reliable factor: **0.5886 ft³/s per m³/min**. With the formula, a worked example, and a handy reference table, you can translate any flow rate instantly. Need more conversions or a custom calculator? Explore our suite of unit‑conversion tools and keep your projects moving smoothly.