ACFM to SCFM Calculator
Actual to standard cubic feet per minute.
Enter your values
ⓘ Live results
Results
- Standard airflow
- 523.8 SCFM
- Correction factor
- 0.873
- Mass flow
- 39.3 lb/min
- Actual airflow
- 600 ACFM
Quick answer
SCFM converts actual measured volume back to a common reference so mass flow can be compared fairly.
SCFM = ACFM x (Pact/Pstd) x (Tstd/Tact)
How to use the ACFM to SCFM Calculator
- 1Enter the airflow you measured on site.
- 2Add the actual temperature and pressure at the measuring point.
- 3Use SCFM whenever you compare against rated capacity.
Worked example
Using the values the calculator loads with:
Inputs
- Actual airflow600 ACFM
- Actual temperature45 °C
- Actual pressure96 kPa
Results
- Standard airflow523.8 SCFM
- Correction factor0.873
- Mass flow39.3 lb/min
- Actual airflow600 ACFM
Frequently asked questions
Compressor ratings?
Compressor CFM is nearly always SCFM, so convert before comparing to a tool's actual demand.
Big difference?
At 1,500 m and 45°C the gap can exceed 20%.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.