Volumetric flow rate.
Gallon per Minutes to Cubic foot per Minutes Converter — gal/min to ft3/min
Convert Gallon per Minutes (gal/min) to Cubic foot per Minutes (ft3/min) using the exact conversion factor (1 gallon per minutes = 0.1336805556 cubic foot per minutes). See the formula, worked examples, conversion table, unit comparison, and common uses.
Gallon per Minutes to Cubic foot per Minutes converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 6.30901964e-5 / 0.0004719474432.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Minutes to Cubic foot per Minutes
Gallon per Minutes and Cubic foot per Minutes both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Gallon per Minutes is typically associated with united States (plumbing, pump, and irrigation industry standard), while Cubic foot per Minutes is typically associated with united States, and widely recognized internationally in HVAC and compressed-air equipment specifications.
Formula
cubic foot per minutes = gallon per minutes × 0.133680555556
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per minutes equals 0.0000630901964 base units, and 1 cubic foot per minutes equals 0.0004719474432 base units, so dividing one by the other gives the direct gallon per minutes-to-cubic foot per minutes factor of 0.133680555556.
Simple example
1 gal/min × 0.1336805556 = 0.1336805556 ft3/min
1 gallon per minutes = 0.1336805556 cubic foot per minutes.
Real-world example
60 gal/min × 0.1336805556 = 8.020833333 ft3/min
60 gallon per minutes = 8.020833333 cubic foot per minutes.
Conversion table
| Gallon per Minutes (gal/min) | Cubic foot per Minutes (ft3/min) |
|---|---|
| 0.1 gal/min | 0.0133680556 ft3/min |
| 1 gal/min | 0.1336805556 ft3/min |
| 10 gal/min | 1.336805556 ft3/min |
| 60 gal/min | 8.020833333 ft3/min |
| 100 gal/min | 13.36805556 ft3/min |
| 1,000 gal/min | 133.6805556 ft3/min |
Reverse conversion: Cubic foot per Minutes to Gallon per Minutes
0.1336805556 ft3/min × 7.480519481 = 1 gal/min
0.1336805556 cubic foot per minutes = 1 gallon per minutes.
gallon per minutes = cubic foot per minutes × 7.48051948052
For a page dedicated to this direction, see Cubic foot per Minutes to Gallon per Minutes.
Gallon per Minutes vs. Cubic foot per Minutes
| Aspect | Gallon per Minutes | Cubic foot per Minutes |
|---|---|---|
| Family | US customary flow-rate unit | US customary flow-rate unit |
| Typical use | US residential and commercial plumbing fixture flow ratings | The standard unit for rating HVAC airflow, compressed-air equipment output, and fan/blower performance |
| Where it's used | United States (plumbing, pump, and irrigation industry standard) | United States, and widely recognized internationally in HVAC and compressed-air equipment specifications |
Understanding the Gallon per Minutes
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
Where it's used: United States (plumbing, pump, and irrigation industry standard)
Uses of the Gallon per Minutes today
- US residential and commercial plumbing fixture flow ratings
- US pump and irrigation system specifications
- US pool and spa filtration system sizing
Understanding the Cubic foot per Minutes
Cubic foot per Minutes (ft3/min) measures volumetric flow rate. One cubic foot of volume passing a point every minute. It is classified as a US customary flow-rate unit.
Where it's used: United States, and widely recognized internationally in HVAC and compressed-air equipment specifications
Uses of the Cubic foot per Minutes today
- The standard unit for rating HVAC airflow, compressed-air equipment output, and fan/blower performance
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Cubic foot per Minutes — sources
- AMCA / ASHRAE HVAC industry standards — CFM is the conventional unit for airflow ratings in HVAC and industrial air-moving equipment.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per minutes are in 1 gallon per minutes?
1 gallon per minutes equals 0.1336805556 cubic foot per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to cubic foot per minutes?
Multiply the gallon per minutes value by 0.1336805556. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per minutes back to gallon per minutes?
Use the reverse factor: 1 cubic foot per minutes equals 7.480519481 gallon per minutes. You can also use the swap control in the converter above to flip the direction instantly.
What is a gallon per minutes?
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
What is a cubic foot per minutes?
Cubic foot per Minutes (ft3/min) measures volumetric flow rate. One cubic foot of volume passing a point every minute. It is classified as a US customary flow-rate unit.
Is the gallon per minutes to cubic foot per minutes conversion exact?
Yes. Both gallon per minutes and cubic foot per minutes are defined by fixed standards rather than physical artifacts, so the factor of 0.1336805556 used above is exact to as many digits as you choose to display.
Where is the gallon per minutes still used today?
United States (plumbing, pump, and irrigation industry standard)
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.