Volumetric flow rate.
Gallon per Minutes to Cubic Meter per Hours Converter — gal/min to m3/h
Convert Gallon per Minutes (gal/min) to Cubic Meter per Hours (m3/h) using the exact conversion factor (1 gallon per minutes = 0.227124707 cubic meter per hours). See the formula, worked examples, conversion table, unit comparison, and common uses.
Gallon per Minutes to Cubic Meter 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 6.30901964e-5 / 0.0002777777778.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gallon per Minutes to Cubic Meter per Hours
Gallon per Minutes and Cubic Meter 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. Gallon per Minutes is typically associated with united States (plumbing, pump, and irrigation industry standard), while Cubic Meter per Hours is typically associated with standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US.
Formula
cubic meter per hours = gallon per minutes × 0.22712470704
This factor comes from each unit's defined relationship to the category's base unit: 1 gallon per minutes equals 0.0000630901964 base units, and 1 cubic meter per hours equals 0.000277777777778 base units, so dividing one by the other gives the direct gallon per minutes-to-cubic meter per hours factor of 0.22712470704.
Simple example
1 gal/min × 0.227124707 = 0.227124707 m3/h
1 gallon per minutes = 0.227124707 cubic meter per hours.
Real-world example
60 gal/min × 0.227124707 = 13.62748242 m3/h
60 gallon per minutes = 13.62748242 cubic meter per hours.
Conversion table
| Gallon per Minutes (gal/min) | Cubic Meter per Hours (m3/h) |
|---|---|
| 0.1 gal/min | 0.0227124707 m3/h |
| 1 gal/min | 0.227124707 m3/h |
| 10 gal/min | 2.27124707 m3/h |
| 60 gal/min | 13.62748242 m3/h |
| 100 gal/min | 22.7124707 m3/h |
| 1,000 gal/min | 227.124707 m3/h |
Reverse conversion: Cubic Meter per Hours to Gallon per Minutes
0.227124707 m3/h × 4.402867539 = 0.9999999998 gal/min
0.227124707 cubic meter per hours = 0.9999999998 gallon per minutes.
gallon per minutes = cubic meter per hours × 4.4028675393
For a page dedicated to this direction, see Cubic Meter per Hours to Gallon per Minutes.
Gallon per Minutes vs. Cubic Meter per Hours
| Aspect | Gallon per Minutes | Cubic Meter per Hours |
|---|---|---|
| Family | US customary flow-rate unit | metric derived flow-rate unit |
| Typical use | US residential and commercial plumbing fixture flow ratings | HVAC equipment airflow and liquid-flow ratings |
| Where it's used | United States (plumbing, pump, and irrigation industry standard) | Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US |
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
Understanding the Cubic Meter per Hours
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
Where it's used: Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US
Uses of the Cubic Meter per Hours today
- HVAC equipment airflow and liquid-flow ratings
- Industrial pump and system flow specifications
- Building ventilation system design
Gallon per Minutes — sources
- NIST Handbook 44 — General tables of units including US customary flow-rate measures.
Cubic Meter per Hours — sources
- ISO 5167 (flow measurement standards) — Cubic meters per hour as a standard industrial flow-rate unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meter per hours are in 1 gallon per minutes?
1 gallon per minutes equals 0.227124707 cubic meter per hours, using the exact defined conversion factor rather than an estimate.
How do I convert gallon per minutes to cubic meter per hours?
Multiply the gallon per minutes value by 0.227124707. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter per hours back to gallon per minutes?
Use the reverse factor: 1 cubic meter per hours equals 4.402867539 gallon per minutes. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a cubic meter per hours?
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
Is the gallon per minutes to cubic meter per hours conversion exact?
Yes. Both gallon per minutes and cubic meter per hours are defined by fixed standards rather than physical artifacts, so the factor of 0.227124707 used above is exact to as many digits as you choose to display.
Where is the gallon per minutes still used today?
United States (plumbing, pump, and irrigation industry standard)
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.