Volumetric flow rate.
Imperial gallon per Hours to Imperial quarts per Millisecond Converter — imp gal/h to imp qt/ms
Convert Imperial gallon per Hours (imp gal/h) to Imperial quart per Millisecond (imp qt/ms) using the exact conversion factor (1 imperial gallon per hours = 0.0000011111 imperial quart per millisecond). See the formula, worked examples, and conversion table.
Imperial gallon per Hours to Imperial quarts 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 1.26280278e-6 / 1.1365225.
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 Imperial quarts per Millisecond
Imperial gallon per Hours and Imperial quart 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
imperial quarts per millisecond = imperial gallon per hours × 0.00000111111111111
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 imperial quart per millisecond equals 1.1365225 base units, so dividing one by the other gives the direct imperial gallon per hours-to-imperial quart per millisecond factor of 0.00000111111111111.
Simple example
1 imp gal/h × 0.000001111111111 = 0.0000011111 imp qt/ms
1 imperial gallon per hours = 0.0000011111 imperial quarts per millisecond.
Real-world example
60 imp gal/h × 0.000001111111111 = 0.0000666667 imp qt/ms
60 imperial gallon per hours = 0.0000666667 imperial quarts per millisecond.
Conversion table
| Imperial gallon per Hours (imp gal/h) | Imperial quart per Millisecond (imp qt/ms) |
|---|---|
| 0.1 imp gal/h | 1.111111e-7 imp qt/ms |
| 1 imp gal/h | 0.0000011111 imp qt/ms |
| 10 imp gal/h | 0.0000111111 imp qt/ms |
| 60 imp gal/h | 0.0000666667 imp qt/ms |
| 100 imp gal/h | 0.0001111111 imp qt/ms |
| 1,000 imp gal/h | 0.0011111111 imp qt/ms |
Reverse conversion: Imperial quart per Millisecond to Imperial gallon per Hours
0.0000011111 imp qt/ms × 900000 = 0.99999 imp gal/h
0.0000011111 imperial quarts per millisecond = 0.99999 imperial gallon per hours.
imperial gallon per hours = imperial quarts per millisecond × 900000
For a page dedicated to this direction, see Imperial quart per Millisecond to Imperial gallon per Hours.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
Understanding the Imperial quart per Millisecond (imp qt/ms)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial quarts per millisecond are in 1 imperial gallon per hours?
1 imperial gallon per hours equals 0.0000011111 imperial quarts per millisecond, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per hours to imperial quart per millisecond?
Multiply the imperial gallon per hours value by 0.000001111111111. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart per millisecond back to imperial gallon per hours?
Use the reverse factor: 1 imperial quart per millisecond equals 900,000 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 imperial quart per millisecond?
Imperial quart per Millisecond (imp qt/ms) is a unit of flow rate.
Is the imperial gallon per hours to imperial quart per millisecond conversion exact?
Yes. Both imperial gallon per hours and imperial quart per millisecond are defined by fixed standards rather than physical artifacts, so the factor of 0.000001111111111 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.