Volumetric flow rate.
Gallon per Minutes to Imperial gallon per Minutes Converter — gal/min to imp gal/min
Convert Gallon per Minutes (gal/min) to Imperial gallon per Minutes (imp gal/min) using the exact conversion factor (1 gallon per minutes = 0.8326741846 imperial gallon per minutes). See the formula, worked examples, conversion table, and common uses.
Gallon per Minutes to Imperial 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 6.30901964e-5 / 7.57681667e-5.
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 Imperial gallon per Minutes
Gallon per Minutes and Imperial 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. Gallon per Minutes is most often used for us residential and commercial plumbing fixture flow ratings.
Formula
imperial gallon per minutes = gallon per minutes × 0.832674184629
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 imperial gallon per minutes equals 0.0000757681666667 base units, so dividing one by the other gives the direct gallon per minutes-to-imperial gallon per minutes factor of 0.832674184629.
Simple example
1 gal/min × 0.8326741846 = 0.8326741846 imp gal/min
1 gallon per minutes = 0.8326741846 imperial gallon per minutes.
Real-world example
60 gal/min × 0.8326741846 = 49.96045108 imp gal/min
60 gallon per minutes = 49.96045108 imperial gallon per minutes.
Conversion table
| Gallon per Minutes (gal/min) | Imperial gallon per Minutes (imp gal/min) |
|---|---|
| 0.1 gal/min | 0.0832674185 imp gal/min |
| 1 gal/min | 0.8326741846 imp gal/min |
| 10 gal/min | 8.326741846 imp gal/min |
| 60 gal/min | 49.96045108 imp gal/min |
| 100 gal/min | 83.26741846 imp gal/min |
| 1,000 gal/min | 832.6741846 imp gal/min |
Reverse conversion: Imperial gallon per Minutes to Gallon per Minutes
0.8326741846 imp gal/min × 1.200949926 = 1 gal/min
0.8326741846 imperial gallon per minutes = 1 gallon per minutes.
gallon per minutes = imperial gallon per minutes × 1.2009499255
For a page dedicated to this direction, see Imperial gallon 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 Imperial gallon per Minutes (imp gal/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 imperial gallon per minutes are in 1 gallon per minutes?
1 gallon per minutes equals 0.8326741846 imperial gallon per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to imperial gallon per minutes?
Multiply the gallon per minutes value by 0.8326741846. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per minutes back to gallon per minutes?
Use the reverse factor: 1 imperial gallon per minutes equals 1.200949926 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 imperial gallon per minutes?
Imperial gallon per Minutes (imp gal/min) is a unit of flow rate.
Is the gallon per minutes to imperial gallon per minutes conversion exact?
Yes. Both gallon per minutes and imperial gallon per minutes are defined by fixed standards rather than physical artifacts, so the factor of 0.8326741846 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.