Volumetric flow rate.
Cubic foot per Seconds to Gallon per Minutes Converter — ft3/s to gal/min
Convert Cubic foot per Seconds (ft3/s) to Gallon per Minutes (gal/min) using the exact conversion factor (1 cubic foot per seconds = 448.8311688 gallon per minutes). See the formula, worked examples, conversion table, unit comparison, and common uses.
Cubic foot per Seconds to Gallon 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 0.02831684659 / 6.30901964e-5.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic foot per Seconds to Gallon per Minutes
Cubic foot per Seconds and Gallon 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. Cubic foot per Seconds is typically associated with united States, while Gallon per Minutes is typically associated with united States (plumbing, pump, and irrigation industry standard).
Formula
gallon per minutes = cubic foot per seconds × 448.831168831
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic foot per seconds equals 0.028316846592 base units, and 1 gallon per minutes equals 0.0000630901964 base units, so dividing one by the other gives the direct cubic foot per seconds-to-gallon per minutes factor of 448.831168831.
Simple example
1 ft3/s × 448.8311688 = 448.8311688 gal/min
1 cubic foot per seconds = 448.8311688 gallon per minutes.
Real-world example
60 ft3/s × 448.8311688 = 26,929.87013 gal/min
60 cubic foot per seconds = 26,929.87013 gallon per minutes.
Conversion table
| Cubic foot per Seconds (ft3/s) | Gallon per Minutes (gal/min) |
|---|---|
| 0.1 ft3/s | 44.88311688 gal/min |
| 1 ft3/s | 448.8311688 gal/min |
| 10 ft3/s | 4,488.311688 gal/min |
| 60 ft3/s | 26,929.87013 gal/min |
| 100 ft3/s | 44,883.11688 gal/min |
| 1,000 ft3/s | 448,831.1688 gal/min |
Reverse conversion: Gallon per Minutes to Cubic foot per Seconds
448.8311688 gal/min × 0.002228009259 = 0.9999999999 ft3/s
448.8311688 gallon per minutes = 0.9999999999 cubic foot per seconds.
cubic foot per seconds = gallon per minutes × 0.00222800925926
For a page dedicated to this direction, see Gallon per Minutes to Cubic foot per Seconds.
Cubic foot per Seconds vs. Gallon per Minutes
| Aspect | Cubic foot per Seconds | Gallon per Minutes |
|---|---|---|
| Family | US customary flow-rate unit | US customary flow-rate unit |
| Typical use | The standard unit used by the US Geological Survey for reporting river and stream discharge at gauging stations | US residential and commercial plumbing fixture flow ratings |
| Where it's used | United States | United States (plumbing, pump, and irrigation industry standard) |
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
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
Cubic foot per Seconds — sources
- USGS Water Science School — Cubic feet per second (cfs) is the standard unit USGS uses to report streamflow.
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per minutes are in 1 cubic foot per seconds?
1 cubic foot per seconds equals 448.8311688 gallon per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert cubic foot per seconds to gallon per minutes?
Multiply the cubic foot per seconds value by 448.8311688. The converter above does this instantly to whatever precision you set.
How do I convert gallon per minutes back to cubic foot per seconds?
Use the reverse factor: 1 gallon per minutes equals 0.0022280093 cubic foot per seconds. You can also use the swap control in the converter above to flip the direction instantly.
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.
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.
Is the cubic foot per seconds to gallon per minutes conversion exact?
Yes. Both cubic foot per seconds and gallon per minutes are defined by fixed standards rather than physical artifacts, so the factor of 448.8311688 used above is exact to as many digits as you choose to display.
Where is the cubic foot per seconds still used today?
United States
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.