How to convert gallons per minute to cubic feet per minute
CFM = gpm × 0.1336805556Multiply the value in gallons per minute by 0.1336805556. To go the other way, multiply by 7.480519481 (or divide by 0.1336805556).
An US gallon per minute is smaller than a cubic foot per minute: it takes 7.480519481 gallons per minute to make one cubic foot per minute.
Worked examples
- 1 US gallon per minute1 gpm × 0.1336805556 = 0.1336805556 CFM
- 5 gallons per minute5 gpm × 0.1336805556 = 0.6684027778 CFM
- 10 gallons per minute10 gpm × 0.1336805556 = 1.336805556 CFM
- 20 gallons per minute20 gpm × 0.1336805556 = 2.673611111 CFM
- 100 gallons per minute100 gpm × 0.1336805556 = 13.36805556 CFM
Gallons per minute to cubic feet per minute conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Gallons per minute (gpm) | Cubic feet per minute (CFM) |
|---|---|
| 0.1 gpm | 0.013368056 CFM |
| 0.25 gpm | 0.033420139 CFM |
| 0.5 gpm | 0.066840278 CFM |
| 1 gpm | 0.13368056 CFM |
| 2 gpm | 0.26736111 CFM |
| 3 gpm | 0.40104167 CFM |
| 4 gpm | 0.53472222 CFM |
| 5 gpm | 0.66840278 CFM |
| 6 gpm | 0.80208333 CFM |
| 7 gpm | 0.93576389 CFM |
| 8 gpm | 1.0694444 CFM |
| 9 gpm | 1.203125 CFM |
| 10 gpm | 1.3368056 CFM |
| Gallons per minute (gpm) | Cubic feet per minute (CFM) |
|---|---|
| 12 gpm | 1.6041667 CFM |
| 15 gpm | 2.0052083 CFM |
| 20 gpm | 2.6736111 CFM |
| 25 gpm | 3.3420139 CFM |
| 30 gpm | 4.0104167 CFM |
| 40 gpm | 5.3472222 CFM |
| 50 gpm | 6.6840278 CFM |
| 75 gpm | 10.026042 CFM |
| 100 gpm | 13.368056 CFM |
| 250 gpm | 33.420139 CFM |
| 500 gpm | 66.840278 CFM |
| 1,000 gpm | 133.68056 CFM |
About the units
US gallon per minute (gpm)
The standard US unit for pumps, wells and fixtures; about 3.785 L/min. One US gallon per minute equals 0.0000630901964 cubic meters per second (m³/s).
Cubic foot per minute (CFM)
The US unit for fan, blower and air-compressor flow; about 1.699 m³/h. One cubic foot per minute equals 0.0004719474432 cubic meters per second (m³/s).
Frequently asked questions
How many cubic feet per minute are in one US gallon per minute?
There are 0.1336805556 cubic feet per minute in one US gallon per minute, and this value is exact by definition.
How do I convert gallons per minute to cubic feet per minute?
Multiply the number of gallons per minute by 0.1336805556. For example, 10 gpm × 0.1336805556 = 1.336805556 CFM.
How many gallons per minute are in one cubic foot per minute?
One cubic foot per minute equals 7.480519481 gallons per minute. That is the reverse factor, 1 ÷ 0.1336805556.
What is 10 gallons per minute in cubic feet per minute?
10 gpm = 1.336805556 CFM.
Is this gpm to CFM converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.