Volumetric flow rate.
Gallon per Minutes to Cubic foot per Seconds Converter — gal/min to ft3/s
Convert Gallon per Minutes (gal/min) to Cubic foot per Seconds (ft3/s) using the exact conversion factor (1 gallon per minutes = 0.0022280093 cubic foot per seconds). See the formula, worked examples, conversion table, unit comparison, and common uses.
Gallon per Minutes to Cubic foot per Seconds 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 / 0.02831684659.
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 Seconds
Gallon per Minutes and Cubic foot per Seconds 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 Seconds is typically associated with united States.
Formula
cubic foot per seconds = gallon per minutes × 0.00222800925926
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 seconds equals 0.028316846592 base units, so dividing one by the other gives the direct gallon per minutes-to-cubic foot per seconds factor of 0.00222800925926.
Simple example
1 gal/min × 0.002228009259 = 0.0022280093 ft3/s
1 gallon per minutes = 0.0022280093 cubic foot per seconds.
Real-world example
60 gal/min × 0.002228009259 = 0.1336805556 ft3/s
60 gallon per minutes = 0.1336805556 cubic foot per seconds.
Conversion table
| Gallon per Minutes (gal/min) | Cubic foot per Seconds (ft3/s) |
|---|---|
| 0.1 gal/min | 0.0002228009 ft3/s |
| 1 gal/min | 0.0022280093 ft3/s |
| 10 gal/min | 0.0222800926 ft3/s |
| 60 gal/min | 0.1336805556 ft3/s |
| 100 gal/min | 0.2228009259 ft3/s |
| 1,000 gal/min | 2.228009259 ft3/s |
Reverse conversion: Cubic foot per Seconds to Gallon per Minutes
0.0022280093 ft3/s × 448.8311688 = 1.000000018 gal/min
0.0022280093 cubic foot per seconds = 1.000000018 gallon per minutes.
gallon per minutes = cubic foot per seconds × 448.831168831
For a page dedicated to this direction, see Cubic foot per Seconds to Gallon per Minutes.
Gallon per Minutes vs. Cubic foot per Seconds
| Aspect | Gallon per Minutes | Cubic foot per Seconds |
|---|---|---|
| Family | US customary flow-rate unit | US customary flow-rate unit |
| Typical use | US residential and commercial plumbing fixture flow ratings | The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations |
| Where it's used | United States (plumbing, pump, and irrigation industry standard) | United States |
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 Seconds
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Where it's used: United States
Uses of the Cubic foot per Seconds today
- The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic foot per seconds are in 1 gallon per minutes?
1 gallon per minutes equals 0.0022280093 cubic foot per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to cubic foot per seconds?
Multiply the gallon per minutes value by 0.002228009259. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot per seconds back to gallon per minutes?
Use the reverse factor: 1 cubic foot per seconds equals 448.8311688 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 seconds?
Cubic foot per Seconds (ft3/s) measures volumetric flow rate. One cubic foot of volume passing a point every second. It is classified as a US customary flow-rate unit.
Is the gallon per minutes to cubic foot per seconds conversion exact?
Yes. Both gallon per minutes and cubic foot per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.002228009259 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.