Volumetric flow rate.
Imperial gallon per Hours to Gallon per Minutes Converter — imp gal/h to gal/min
Convert Imperial gallon per Hours (imp gal/h) to Gallon per Minutes (gal/min) using the exact conversion factor (1 imperial gallon per hours = 0.0200158321 gallon per minutes). See the formula, worked examples, conversion table, and common uses.
Imperial gallon per Hours 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 1.26280278e-6 / 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 Imperial gallon per Hours to Gallon per Minutes
Imperial gallon per Hours 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. Both are volumetric flow rate units.
Formula
gallon per minutes = imperial gallon per hours × 0.0200158320917
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per hours equals 0.00000126280277778 base units, and 1 gallon per minutes equals 0.0000630901964 base units, so dividing one by the other gives the direct imperial gallon per hours-to-gallon per minutes factor of 0.0200158320917.
Simple example
1 imp gal/h × 0.02001583209 = 0.0200158321 gal/min
1 imperial gallon per hours = 0.0200158321 gallon per minutes.
Real-world example
60 imp gal/h × 0.02001583209 = 1.200949926 gal/min
60 imperial gallon per hours = 1.200949926 gallon per minutes.
Conversion table
| Imperial gallon per Hours (imp gal/h) | Gallon per Minutes (gal/min) |
|---|---|
| 0.1 imp gal/h | 0.0020015832 gal/min |
| 1 imp gal/h | 0.0200158321 gal/min |
| 10 imp gal/h | 0.2001583209 gal/min |
| 60 imp gal/h | 1.200949926 gal/min |
| 100 imp gal/h | 2.001583209 gal/min |
| 1,000 imp gal/h | 20.01583209 gal/min |
Reverse conversion: Gallon per Minutes to Imperial gallon per Hours
0.0200158321 gal/min × 49.96045108 = 1 imp gal/h
0.0200158321 gallon per minutes = 1 imperial gallon per hours.
imperial gallon per hours = gallon per minutes × 49.9604510777
For a page dedicated to this direction, see Gallon per Minutes to Imperial gallon per Hours.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
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
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 imperial gallon per hours?
1 imperial gallon per hours equals 0.0200158321 gallon per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per hours to gallon per minutes?
Multiply the imperial gallon per hours value by 0.02001583209. The converter above does this instantly to whatever precision you set.
How do I convert gallon per minutes back to imperial gallon per hours?
Use the reverse factor: 1 gallon per minutes equals 49.96045108 imperial gallon per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per hours?
Imperial gallon per Hours (imp gal/h) is a unit of flow rate.
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 imperial gallon per hours to gallon per minutes conversion exact?
Yes. Both imperial gallon per hours and gallon per minutes are defined by fixed standards rather than physical artifacts, so the factor of 0.02001583209 used above is exact to as many digits as you choose to display.
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.