Formula
imp gpm to cfm conversion formula
Use this relationship for a direct conversion:
Worked example
2 imp gpm = 0.3210873065 cfm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Volume Flow Rate conversion
1 imperial gallon per minute (imp gpm) equals 0.160543653236 cubic foot per minute (cfm). Enter any value below to convert from imp gpm to cfm.
Enter a value and choose units. Results update instantly.
1 imp gpm = 0.1605436532 cfm
| Unit | Value |
|---|---|
| Cubic meter per second m³/s | 0.0000757682 |
| Cubic meter per hour m³/h | 0.2727654 |
| Liter per second L/s | 0.0757681667 |
| Liter per minute L/min | 4.54609 |
| US gallon per minute US gpm | 1.2009499255 |
| Imperial gallon per minute imp gpm | 1 |
| Cubic foot per minute cfm | 0.1605436532 |
Formula
Use this relationship for a direct conversion:
2 imp gpm = 0.3210873065 cfm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| Imperial gallon per minute (imp gpm) | Cubic foot per minute (cfm) |
|---|---|
| 0.01 | 0.0016054365 |
| 0.1 | 0.0160543653 |
| 1 | 0.1605436532 |
| 2 | 0.3210873065 |
| 5 | 0.8027182662 |
| 10 | 1.6054365324 |
| 25 | 4.0135913309 |
| 50 | 8.0271826618 |
| 100 | 16.0543653236 |
| 1,000 | 160.5436532359 |
From unit
One Imperial gallon per minute.
Symbol: imp 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 = imp gpm x 0.160543653236. 1 imperial gallon per minute (imp gpm) equals 0.160543653236 cubic foot per minute (cfm).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.