Volumetric flow rate.
Quarts per Millisecond to Imperial gallon per Hours Converter — qt/ms to imp gal/h
Convert Quart per Millisecond (qt/ms) to Imperial gallon per Hours (imp gal/h) using the exact conversion factor (1 quart per millisecond = 749,406.7662 imperial gallon per hours). See the formula, worked examples, and conversion table.
Quarts per Millisecond to Imperial gallon per Hours 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 0.946352946 / 1.26280278e-6.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts per Millisecond to Imperial gallon per Hours
Quart per Millisecond and Imperial gallon per Hours 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 gallon per hours = quarts per millisecond × 749406.766166
This factor comes from each unit's defined relationship to the category's base unit: 1 quart per millisecond equals 0.946352946 base units, and 1 imperial gallon per hours equals 0.00000126280277778 base units, so dividing one by the other gives the direct quart per millisecond-to-imperial gallon per hours factor of 749406.766166.
Simple example
1 qt/ms × 749406.7662 = 749,406.7662 imp gal/h
1 quart per millisecond = 749,406.7662 imperial gallon per hours.
Real-world example
60 qt/ms × 749406.7662 = 44,964,405.97 imp gal/h
60 quarts per millisecond = 44,964,405.97 imperial gallon per hours.
Conversion table
| Quart per Millisecond (qt/ms) | Imperial gallon per Hours (imp gal/h) |
|---|---|
| 0.1 qt/ms | 74,940.67662 imp gal/h |
| 1 qt/ms | 749,406.7662 imp gal/h |
| 10 qt/ms | 7,494,067.662 imp gal/h |
| 60 qt/ms | 44,964,405.97 imp gal/h |
| 100 qt/ms | 74,940,676.62 imp gal/h |
| 1,000 qt/ms | 749,406,766.2 imp gal/h |
Reverse conversion: Imperial gallon per Hours to Quart per Millisecond
1 imp gal/h × 0.000001334388806 = 0.0000013344 qt/ms
1 imperial gallon per hours = 0.0000013344 quarts per millisecond.
quarts per millisecond = imperial gallon per hours × 0.00000133438880612
For a page dedicated to this direction, see Imperial gallon per Hours to Quart per Millisecond.
Understanding the Quart per Millisecond (qt/ms)
Volumetric flow rate.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial gallon per hours are in 1 quart per millisecond?
1 quart per millisecond equals 749,406.7662 imperial gallon per hours, using the exact defined conversion factor rather than an estimate.
How do I convert quart per millisecond to imperial gallon per hours?
Multiply the quart per millisecond value by 749406.7662. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per hours back to quart per millisecond?
Use the reverse factor: 1 imperial gallon per hours equals 0.0000013344 quarts per millisecond. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart per millisecond?
Quart per Millisecond (qt/ms) is a unit of flow rate.
What is a imperial gallon per hours?
Imperial gallon per Hours (imp gal/h) is a unit of flow rate.
Is the quart per millisecond to imperial gallon per hours conversion exact?
Yes. Both quart per millisecond and imperial gallon per hours are defined by fixed standards rather than physical artifacts, so the factor of 749406.7662 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.