Volumetric flow rate.
Imperial gallons per Millisecond to Gallons per Millisecond Converter — imp gal/ms to gal/ms
Convert Imperial gallon per Millisecond (imp gal/ms) to Gallon per Millisecond (gal/ms) using the exact conversion factor (1 imperial gallon per millisecond = 1.200949926 gallon per millisecond). See the formula, worked examples, and conversion table.
Imperial gallons per Millisecond to Gallons per Millisecond 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 / 3.785411784.
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 Gallons per Millisecond
Imperial gallon per Millisecond and Gallon per Millisecond 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
gallons per millisecond = imperial gallons per millisecond × 1.2009499255
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 millisecond equals 3.785411784 base units, so dividing one by the other gives the direct imperial gallon per millisecond-to-gallon per millisecond factor of 1.2009499255.
Simple example
1 imp gal/ms × 1.200949926 = 1.200949926 gal/ms
1 imperial gallon per millisecond = 1.200949926 gallons per millisecond.
Real-world example
60 imp gal/ms × 1.200949926 = 72.05699553 gal/ms
60 imperial gallons per millisecond = 72.05699553 gallons per millisecond.
Conversion table
| Imperial gallon per Millisecond (imp gal/ms) | Gallon per Millisecond (gal/ms) |
|---|---|
| 0.1 imp gal/ms | 0.1200949926 gal/ms |
| 1 imp gal/ms | 1.200949926 gal/ms |
| 10 imp gal/ms | 12.00949926 gal/ms |
| 60 imp gal/ms | 72.05699553 gal/ms |
| 100 imp gal/ms | 120.0949926 gal/ms |
| 1,000 imp gal/ms | 1,200.949926 gal/ms |
Reverse conversion: Gallon per Millisecond to Imperial gallon per Millisecond
1.200949926 gal/ms × 0.8326741846 = 1 imp gal/ms
1.200949926 gallons per millisecond = 1 imperial gallons per millisecond.
imperial gallons per millisecond = gallons per millisecond × 0.832674184629
For a page dedicated to this direction, see Gallon per Millisecond to Imperial gallon per Millisecond.
Understanding the Imperial gallon per Millisecond (imp gal/ms)
Volumetric flow rate.
Understanding the Gallon per Millisecond (gal/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallons per millisecond are in 1 imperial gallon per millisecond?
1 imperial gallon per millisecond equals 1.200949926 gallons per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per millisecond to gallon per millisecond?
Multiply the imperial gallon per millisecond value by 1.200949926. The converter above does this instantly to whatever precision you set.
How do I convert gallon per millisecond back to imperial gallon per millisecond?
Use the reverse factor: 1 gallon per millisecond equals 0.8326741846 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 millisecond?
Gallon per Millisecond (gal/ms) is a unit of flow rate.
Is the imperial gallon per millisecond to gallon per millisecond conversion exact?
Yes. Both imperial gallon per millisecond and gallon per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 1.200949926 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.