US Gallons per Minute to Cubic Feet per Minute Converter
1 US gallon per minute ≈ 0.133680556 cubic feet per minute
1 US gallon per minute equals 0.133681 cubic feet per minute
How to convert US gallons per minute to cubic feet per minute
These are volumetric flow rates. US and Imperial gallons per minute differ; gas volumes quoted at standard conditions also need their reference temperature and pressure before comparison with actual flow.
CFM = gpm × 0.1336805556One US gallon per minute is 0.1336805556 cubic feet per minute, so a single multiplication converts any value.
1.33681 CFM ≈ 10 × 0.1336805556US gallons per minute to cubic feet per minute conversion table
Common values in US gallons per minute, converted to cubic feet per minute.
| US gallons per minute (gpm) | Cubic feet per minute (CFM) |
|---|---|
| 1 | 0.13368056 |
| 2 | 0.26736111 |
| 3 | 0.40104167 |
| 4 | 0.53472222 |
| 5 | 0.66840278 |
| 10 | 1.3368056 |
| 20 | 2.6736111 |
| 25 | 3.3420139 |
| 50 | 6.6840278 |
| 100 | 13.368056 |
| 250 | 33.420139 |
| 500 | 66.840278 |
| 1,000 | 133.68056 |
About these units
US gallon per minutegpm
The US standard for pump and plumbing flow.
cubic foot per minuteCFM
The US standard for fan, compressor and ventilation airflow.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.