Volumetric flow rate.
Quart per Hours to Imperial gallon per Hours Converter — qt/h to imp gal/h
Convert Quart per Hours (qt/h) to Imperial gallon per Hours (imp gal/h) using the exact conversion factor (1 quart per hours = 0.2081685462 imperial gallon per hours). See the formula, worked examples, and conversion table.
Quart per Hours 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 2.62875818e-7 / 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 Quart per Hours to Imperial gallon per Hours
Quart per Hours 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 = quart per hours × 0.208168546157
This factor comes from each unit's defined relationship to the category's base unit: 1 quart per hours equals 2.628758e-7 base units, and 1 imperial gallon per hours equals 0.00000126280277778 base units, so dividing one by the other gives the direct quart per hours-to-imperial gallon per hours factor of 0.208168546157.
Simple example
1 qt/h × 0.2081685462 = 0.2081685462 imp gal/h
1 quart per hours = 0.2081685462 imperial gallon per hours.
Real-world example
60 qt/h × 0.2081685462 = 12.49011277 imp gal/h
60 quart per hours = 12.49011277 imperial gallon per hours.
Conversion table
| Quart per Hours (qt/h) | Imperial gallon per Hours (imp gal/h) |
|---|---|
| 0.1 qt/h | 0.0208168546 imp gal/h |
| 1 qt/h | 0.2081685462 imp gal/h |
| 10 qt/h | 2.081685462 imp gal/h |
| 60 qt/h | 12.49011277 imp gal/h |
| 100 qt/h | 20.81685462 imp gal/h |
| 1,000 qt/h | 208.1685462 imp gal/h |
Reverse conversion: Imperial gallon per Hours to Quart per Hours
0.2081685462 imp gal/h × 4.803799702 = 1 qt/h
0.2081685462 imperial gallon per hours = 1 quart per hours.
quart per hours = imperial gallon per hours × 4.80379970202
For a page dedicated to this direction, see Imperial gallon per Hours to Quart per Hours.
Understanding the Quart per Hours (qt/h)
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 hours?
1 quart per hours equals 0.2081685462 imperial gallon per hours, using the exact defined conversion factor rather than an estimate.
How do I convert quart per hours to imperial gallon per hours?
Multiply the quart per hours value by 0.2081685462. The converter above does this instantly to whatever precision you set.
How do I convert imperial gallon per hours back to quart per hours?
Use the reverse factor: 1 imperial gallon per hours equals 4.803799702 quart per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart per hours?
Quart per Hours (qt/h) 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 hours to imperial gallon per hours conversion exact?
Yes. Both quart per hours and imperial gallon per hours are defined by fixed standards rather than physical artifacts, so the factor of 0.2081685462 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.