Volumetric flow rate.
Gallon per Minutes to Cup per Minutes Converter — gal/min to cup/min
Convert Gallon per Minutes (gal/min) to Cup per Minutes (cup/min) using the exact conversion factor (1 gallon per minutes = 16 cup per minutes). See the formula, worked examples, conversion table, and common uses.
Gallon per Minutes to Cup 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 / 3.94313728e-6.
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 Cup per Minutes
Gallon per Minutes and Cup 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 most often used for us residential and commercial plumbing fixture flow ratings.
Formula
cup per minutes = gallon per minutes × 16
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 cup per minutes equals 0.000003943137275 base units, so dividing one by the other gives the direct gallon per minutes-to-cup per minutes factor of 16.
Simple example
1 gal/min × 16 = 16 cup/min
1 gallon per minutes = 16 cup per minutes.
Real-world example
60 gal/min × 16 = 960 cup/min
60 gallon per minutes = 960 cup per minutes.
Conversion table
| Gallon per Minutes (gal/min) | Cup per Minutes (cup/min) |
|---|---|
| 0.1 gal/min | 1.6 cup/min |
| 1 gal/min | 16 cup/min |
| 10 gal/min | 160 cup/min |
| 60 gal/min | 960 cup/min |
| 100 gal/min | 1,600 cup/min |
| 1,000 gal/min | 16,000 cup/min |
Reverse conversion: Cup per Minutes to Gallon per Minutes
16 cup/min × 0.0625 = 1 gal/min
16 cup per minutes = 1 gallon per minutes.
gallon per minutes = cup per minutes × 0.0625
For a page dedicated to this direction, see Cup per Minutes to Gallon per Minutes.
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 Cup per Minutes (cup/min)
Volumetric flow rate.
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 cup per minutes are in 1 gallon per minutes?
1 gallon per minutes equals 16 cup per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to cup per minutes?
Multiply the gallon per minutes value by 16. The converter above does this instantly to whatever precision you set.
How do I convert cup per minutes back to gallon per minutes?
Use the reverse factor: 1 cup per minutes equals 0.0625 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 cup per minutes?
Cup per Minutes (cup/min) is a unit of flow rate.
Is the gallon per minutes to cup per minutes conversion exact?
Yes. Both gallon per minutes and cup per minutes are defined by fixed standards rather than physical artifacts, so the factor of 16 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.