Volumetric flow rate.
Milliliter per Hours to Gallon per Minutes Converter — mL/h to gal/min
Convert Milliliter per Hours (mL/h) to Gallon per Minutes (gal/min) using the exact conversion factor (1 milliliter per hours = 0.0000044029 gallon per minutes). See the formula, worked examples, conversion table, and common uses.
Milliliter per Hours to Gallon per Minutes 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 2.77777778e-10 / 6.30901964e-5.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milliliter per Hours to Gallon per Minutes
Milliliter per Hours and Gallon per Minutes 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
gallon per minutes = milliliter per hours × 0.0000044028675393
This factor comes from each unit's defined relationship to the category's base unit: 1 milliliter per hours equals 2.777778e-10 base units, and 1 gallon per minutes equals 0.0000630901964 base units, so dividing one by the other gives the direct milliliter per hours-to-gallon per minutes factor of 0.0000044028675393.
Simple example
1 mL/h × 0.000004402867539 = 0.0000044029 gal/min
1 milliliter per hours = 0.0000044029 gallon per minutes.
Real-world example
60 mL/h × 0.000004402867539 = 0.0002641721 gal/min
60 milliliter per hours = 0.0002641721 gallon per minutes.
Conversion table
| Milliliter per Hours (mL/h) | Gallon per Minutes (gal/min) |
|---|---|
| 0.1 mL/h | 4.402868e-7 gal/min |
| 1 mL/h | 0.0000044029 gal/min |
| 10 mL/h | 0.0000440287 gal/min |
| 60 mL/h | 0.0002641721 gal/min |
| 100 mL/h | 0.0004402868 gal/min |
| 1,000 mL/h | 0.0044028675 gal/min |
Reverse conversion: Gallon per Minutes to Milliliter per Hours
0.0000044029 gal/min × 227124.707 = 1.000007373 mL/h
0.0000044029 gallon per minutes = 1.000007373 milliliter per hours.
milliliter per hours = gallon per minutes × 227124.70704
For a page dedicated to this direction, see Gallon per Minutes to Milliliter per Hours.
Understanding the Milliliter per Hours (mL/h)
Volumetric flow rate.
Understanding the Gallon per Minutes
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
Where it's used: United States (plumbing, pump, and irrigation industry standard)
Uses of the Gallon per Minutes today
- US residential and commercial plumbing fixture flow ratings
- US pump and irrigation system specifications
- US pool and spa filtration system sizing
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per minutes are in 1 milliliter per hours?
1 milliliter per hours equals 0.0000044029 gallon per minutes, using the exact defined conversion factor rather than an estimate.
How do I convert milliliter per hours to gallon per minutes?
Multiply the milliliter per hours value by 0.000004402867539. The converter above does this instantly to whatever precision you set.
How do I convert gallon per minutes back to milliliter per hours?
Use the reverse factor: 1 gallon per minutes equals 227,124.707 milliliter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a milliliter per hours?
Milliliter per Hours (mL/h) is a unit of flow rate.
What is a gallon per minutes?
Gallon per Minutes (gal/min) measures volumetric flow rate. The standard US unit for pump, plumbing, and irrigation flow-rate specifications. It is classified as a US customary flow-rate unit.
Is the milliliter per hours to gallon per minutes conversion exact?
Yes. Both milliliter per hours and gallon per minutes are defined by fixed standards rather than physical artifacts, so the factor of 0.000004402867539 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.