Volume flow
Volumetric flow for pipes, ducts and pumps.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert U.S. gallon per hour (gph US) to cubic foot per minute (cfm). Enter a value for an instant result, or use the examples and reverse conversion below.
Volumetric flow for pipes, ducts and pumps.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a U.S. gallon per hour value to calculate cubic foot per minute with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| cubic metre per secondfrom gph US | m³/s | 0.0000010515 |
| cubic metre per minutefrom gph US | m³/min | 0.0000630902 |
| cubic metre per hourfrom gph US | m³/h | 0.00378541 |
| litre per secondfrom gph US | L/s | 0.0010515 |
| litre per minutefrom gph US | L/min | 0.0630902 |
| litre per hourfrom gph US | L/h | 3.78541 |
| millilitre per minutefrom gph US | mL/min | 63.0902 |
| cubic foot per secondfrom gph US | ft³/s | 0.0000371335 |
| cubic foot per minutefrom gph US | cfm | 0.00222801 |
| U.S. gallon per minutefrom gph US | gpm US | 0.0166667 |
| U.S. gallon per hourfrom gph US | gph US | 1 |
| Imperial gallon per minutefrom gph US | gpm Imp | 0.0138779 |
| oil barrel per dayfrom gph US | bbl/d | 0.571429 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
U.S. Gallon Per Hour (gph US) and cubic foot per minute (cfm) are units of volume flow. Use this page to convert in either direction.
| U.S. Gallon Per Hour (gph US) | Cubic Foot Per Minute (cfm) |
|---|---|
| 1 gph US | 0.00222801 cfm |
| 5 gph US | 0.01114 cfm |
| 10 gph US | 0.0222801 cfm |
| 100 gph US | 0.222801 cfm |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
cfm to gph US (cubic foot per minute to U.S. gallon per hour)