Volumetric flow rate.
Imperial gallons per Millisecond to Gallon per Minutes Converter — imp gal/ms to gal/min
Convert Imperial gallon per Millisecond (imp gal/ms) to Gallon per Minutes (gal/min) using the exact conversion factor (1 imperial gallon per millisecond = 72,056.99553 gallon per minutes). See the formula, worked examples, conversion table, and common uses.
Imperial gallons per Millisecond 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 4.54609 / 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 gallons per Millisecond to Gallon per Minutes
Imperial gallon per Millisecond 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 gallons per millisecond × 72056.9955303
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial gallon per millisecond equals 4.54609 base units, and 1 gallon per minutes equals 0.0000630901964 base units, so dividing one by the other gives the direct imperial gallon per millisecond-to-gallon per minutes factor of 72056.9955303.
Simple example
1 imp gal/ms × 72056.99553 = 72,056.99553 gal/min
1 imperial gallon per millisecond = 72,056.99553 gallon per minutes.
Real-world example
60 imp gal/ms × 72056.99553 = 4,323,419.732 gal/min
60 imperial gallons per millisecond = 4,323,419.732 gallon per minutes.
Conversion table
| Imperial gallon per Millisecond (imp gal/ms) | Gallon per Minutes (gal/min) |
|---|---|
| 0.1 imp gal/ms | 7,205.699553 gal/min |
| 1 imp gal/ms | 72,056.99553 gal/min |
| 10 imp gal/ms | 720,569.9553 gal/min |
| 60 imp gal/ms | 4,323,419.732 gal/min |
| 100 imp gal/ms | 7,205,699.553 gal/min |
| 1,000 imp gal/ms | 72,056,995.53 gal/min |
Reverse conversion: Gallon per Minutes to Imperial gallon per Millisecond
1 gal/min × 0.00001387790308 = 0.0000138779 imp gal/ms
1 gallon per minutes = 0.0000138779 imperial gallons per millisecond.
imperial gallons per millisecond = gallon per minutes × 0.0000138779030771
For a page dedicated to this direction, see Gallon per Minutes to Imperial gallon per Millisecond.
Understanding the Imperial gallon per Millisecond (imp gal/ms)
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 millisecond?
1 imperial gallon per millisecond equals 72,056.99553 gallon per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per millisecond to gallon per minutes?
Multiply the imperial gallon per millisecond value by 72056.99553. The converter above does this instantly to whatever precision you set.
How do I convert gallon per minutes back to imperial gallon per millisecond?
Use the reverse factor: 1 gallon per minutes equals 0.0000138779 imperial gallons per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial gallon per millisecond?
Imperial gallon per Millisecond (imp gal/ms) 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 millisecond to gallon per minutes conversion exact?
Yes. Both imperial gallon per millisecond and gallon per minutes are defined by fixed standards rather than physical artifacts, so the factor of 72056.99553 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.