Formula
US gpm to cfm conversion formula
Use this relationship for a direct conversion:
Worked example
2 US gpm = 0.2673611111 cfm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Volume Flow Rate conversion
1 us gallon per minute (US gpm) equals 0.133680555556 cubic foot per minute (cfm). Enter any value below to convert from US gpm to cfm.
Enter a value and choose units. Results update instantly.
1 US gpm = 0.1336805556 cfm
| Unit | Value |
|---|---|
| Cubic meter per second m³/s | 0.0000630902 |
| Cubic meter per hour m³/h | 0.227124707 |
| Liter per second L/s | 0.0630901964 |
| Liter per minute L/min | 3.785411784 |
| US gallon per minute US gpm | 1 |
| Imperial gallon per minute imp gpm | 0.8326741846 |
| Cubic foot per minute cfm | 0.1336805556 |
Formula
Use this relationship for a direct conversion:
2 US gpm = 0.2673611111 cfm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| US gallon per minute (US gpm) | Cubic foot per minute (cfm) |
|---|---|
| 0.01 | 0.0013368056 |
| 0.1 | 0.0133680556 |
| 1 | 0.1336805556 |
| 2 | 0.2673611111 |
| 5 | 0.6684027778 |
| 10 | 1.3368055556 |
| 25 | 3.3420138889 |
| 50 | 6.6840277778 |
| 100 | 13.3680555556 |
| 1,000 | 133.6805555556 |
From unit
One US liquid gallon per minute.
Symbol: US gpm
To unit
One cubic foot per minute.
Symbol: cfm
Keep converting
Source
Definitions are checked against NIST SP 811 and exact volume definitions. Calculations use full internal precision before display rounding.
View the complete volume flow rate converterQuestions
Use the formula cfm = US gpm x 0.133680555556. 1 us gallon per minute (US gpm) equals 0.133680555556 cubic foot per minute (cfm).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.