Volumetric flow rate.
Imperial gallon per Hours to Milliliter per Hours Converter — imp gal/h to mL/h
Convert Imperial gallon per Hours (imp gal/h) to Milliliter per Hours (mL/h) using the exact conversion factor (1 imperial gallon per hours = 4,546.09 milliliter per hours). See the formula, worked examples, and conversion table.
Imperial gallon per Hours to Milliliter 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 1.26280278e-6 / 2.77777778e-10.
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 Milliliter per Hours
Imperial gallon per Hours and Milliliter 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
milliliter per hours = imperial gallon per hours × 4546.09
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 milliliter per hours equals 2.777778e-10 base units, so dividing one by the other gives the direct imperial gallon per hours-to-milliliter per hours factor of 4546.09.
Simple example
1 imp gal/h × 4546.09 = 4,546.09 mL/h
1 imperial gallon per hours = 4,546.09 milliliter per hours.
Real-world example
60 imp gal/h × 4546.09 = 272,765.4 mL/h
60 imperial gallon per hours = 272,765.4 milliliter per hours.
Conversion table
| Imperial gallon per Hours (imp gal/h) | Milliliter per Hours (mL/h) |
|---|---|
| 0.1 imp gal/h | 454.609 mL/h |
| 1 imp gal/h | 4,546.09 mL/h |
| 10 imp gal/h | 45,460.9 mL/h |
| 60 imp gal/h | 272,765.4 mL/h |
| 100 imp gal/h | 454,609 mL/h |
| 1,000 imp gal/h | 4,546,090 mL/h |
Reverse conversion: Milliliter per Hours to Imperial gallon per Hours
1 mL/h × 0.0002199692483 = 0.0002199692 imp gal/h
1 milliliter per hours = 0.0002199692 imperial gallon per hours.
imperial gallon per hours = milliliter per hours × 0.000219969248299
For a page dedicated to this direction, see Milliliter per Hours to Imperial gallon per Hours.
Understanding the Imperial gallon per Hours (imp gal/h)
Volumetric flow rate.
Understanding the Milliliter per Hours (mL/h)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliter per hours are in 1 imperial gallon per hours?
1 imperial gallon per hours equals 4,546.09 milliliter per hours, using the exact defined conversion factor rather than an estimate.
How do I convert imperial gallon per hours to milliliter per hours?
Multiply the imperial gallon per hours value by 4546.09. The converter above does this instantly to whatever precision you set.
How do I convert milliliter per hours back to imperial gallon per hours?
Use the reverse factor: 1 milliliter per hours equals 0.0002199692 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 milliliter per hours?
Milliliter per Hours (mL/h) is a unit of flow rate.
Is the imperial gallon per hours to milliliter per hours conversion exact?
Yes. Both imperial gallon per hours and milliliter per hours are defined by fixed standards rather than physical artifacts, so the factor of 4546.09 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.