Gallon (US) per Minute (GPM) (GPM)
Gallon (US) per minute (GPM) equals 6.30902×10⁻⁵ m³/s using the US liquid gallon of 3.785411784 L.
GPM is the standard US plumbing and pump rating — distinct from the larger UK imperial gallon.
Gallon (US) per Minute (GPM) to Cubic Meter per Hour
Convert gallon (us) per minute (gpm) to cubic meter per hour instantly. Type in either field — results update live.
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Flow Gallon (US) per Minute (GPM) Cubic Meter per Hour
1 gallon (us) per minute (gpm) = 0.227124707 cubic meters per hour
Unit
Unit
Conversion table
Selected GPM values converted to m³/h using the exact factor from this tool.
| GPM | m³/h |
|---|---|
| 0.01 | 0.0022712471 |
| 0.1 | 0.0227124707 |
| 1 | 0.227124707 |
| 2 | 0.454249414 |
| 3 | 0.6813741211 |
| 5 | 1.1356235351 |
| 10 | 2.2712470702 |
| 20 | 4.5424941404 |
| 50 | 11.3562353511 |
| 100 | 22.7124707022 |
| 1,000 | 227.1247070218 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 GPM = 0.227124707 m³/h
1 m³/h = 4.4028675397 GPM
To convert gallon (us) per minute (gpm) to cubic meter per hour, multiply by 0.227124707.
To convert cubic meter per hour to gallon (us) per minute (gpm), multiply by 4.4028675397.
Example: convert 10 GPM to m³/h
10 × 0.227124707 = 2.2712470702 m³/h
About these units
Short background on the units used in this conversion.
Cubic Meter per Hour (m³/h)
Cubic meter per hour (m³/h) equals 2.777778×10⁻⁴ m³/s — common for HVAC air handlers and water mains.
Cubic meters per hour rate building ventilation, district heating loops, and municipal water supply.
Frequently asked questions
How many cubic meters per hour are in one gallon (us) per minute (gpm)?
One gallon (us) per minute (gpm) equals 0.227124707 cubic meters per hour. Multiply your gallons (US) per minute value by 0.227124707 to convert to cubic meters per hour.
What is the conversion formula?
m³/h = GPM × 0.227124707The reverse is
GPM = m³/h × 4.4028675397, using the same exact factors as this converter.Is this Gallon (US) per Minute (GPM) to Cubic Meter per Hour converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All gallon (us) per minute (gpm) conversions
Jump to any flow conversion starting from gallon (us) per minute (gpm) — including the reverse direction and every other unit in our dataset.
cubic meter per hour (m³/h) → gallon (us) per minute (gpm) (GPM)
gallon (us) per minute (gpm) (GPM) → cubic meter per second (m³/s)gallon (us) per minute (gpm) (GPM) → cubic meter per day (m³/day)gallon (us) per minute (gpm) (GPM) → cubic meter per minute (m³/min)gallon (us) per minute (gpm) (GPM) → cubic centimeter per day (cm³/day)gallon (us) per minute (gpm) (GPM) → cubic centimeter per hour (cm³/h)gallon (us) per minute (gpm) (GPM) → cubic centimeter per minute (cm³/min)gallon (us) per minute (gpm) (GPM) → cubic centimeter per second (cm³/s)gallon (us) per minute (gpm) (GPM) → liter per day (L/day)gallon (us) per minute (gpm) (GPM) → liter per hour (L/h)gallon (us) per minute (gpm) (GPM) → liter per minute (L/min)gallon (us) per minute (gpm) (GPM) → liter per second (L/s)gallon (us) per minute (gpm) (GPM) → milliliter per day (mL/day)gallon (us) per minute (gpm) (GPM) → milliliter per hour (mL/h)gallon (us) per minute (gpm) (GPM) → milliliter per minute (mL/min)gallon (us) per minute (gpm) (GPM) → milliliter per second (mL/s)gallon (us) per minute (gpm) (GPM) → gallon (us) per day (gal (US)/day)gallon (us) per minute (gpm) (GPM) → gallon (us) per hour (gal (US)/h)gallon (us) per minute (gpm) (GPM) → gallon (us) per second (gal (US)/s)gallon (us) per minute (gpm) (GPM) → gallon (uk) per day (gal (UK)/day)gallon (us) per minute (gpm) (GPM) → gallon (uk) per hour (gal (UK)/h)gallon (us) per minute (gpm) (GPM) → gallon (uk) per minute (gal (UK)/min)gallon (us) per minute (gpm) (GPM) → gallon (uk) per second (gal (UK)/s)gallon (us) per minute (gpm) (GPM) → kilobarrel (us) per day (kbbl (US)/day)gallon (us) per minute (gpm) (GPM) → barrel (us) per day (bbl (US)/day)gallon (us) per minute (gpm) (GPM) → barrel (us) per hour (bbl (US)/h)gallon (us) per minute (gpm) (GPM) → barrel (us) per minute (bbl (US)/min)gallon (us) per minute (gpm) (GPM) → barrel (us) per second (bbl (US)/s)gallon (us) per minute (gpm) (GPM) → acre-foot per year (ac-ft/yr)gallon (us) per minute (gpm) (GPM) → acre-foot per day (ac-ft/day)gallon (us) per minute (gpm) (GPM) → acre-foot per hour (ac-ft/h)gallon (us) per minute (gpm) (GPM) → hundred cubic foot per day (100 ft³/day)gallon (us) per minute (gpm) (GPM) → hundred cubic foot per hour (100 ft³/h)gallon (us) per minute (gpm) (GPM) → hundred cubic foot per minute (100 ft³/min)gallon (us) per minute (gpm) (GPM) → fluid ounce (us) per hour (fl oz (US)/h)gallon (us) per minute (gpm) (GPM) → fluid ounce (us) per minute (fl oz (US)/min)gallon (us) per minute (gpm) (GPM) → fluid ounce (us) per second (fl oz (US)/s)gallon (us) per minute (gpm) (GPM) → fluid ounce (uk) per hour (fl oz (UK)/h)gallon (us) per minute (gpm) (GPM) → fluid ounce (uk) per minute (fl oz (UK)/min)gallon (us) per minute (gpm) (GPM) → fluid ounce (uk) per second (fl oz (UK)/s)gallon (us) per minute (gpm) (GPM) → cubic yard per hour (yd³/h)gallon (us) per minute (gpm) (GPM) → cubic yard per minute (yd³/min)gallon (us) per minute (gpm) (GPM) → cubic yard per second (yd³/s)gallon (us) per minute (gpm) (GPM) → cubic foot per hour (ft³/h)gallon (us) per minute (gpm) (GPM) → cubic foot per minute (cfm) (CFM)gallon (us) per minute (gpm) (GPM) → cubic foot per second (ft³/s)gallon (us) per minute (gpm) (GPM) → cubic inch per hour (in³/h)gallon (us) per minute (gpm) (GPM) → cubic inch per minute (in³/min)gallon (us) per minute (gpm) (GPM) → cubic inch per second (in³/s)