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 Second
Convert gallon (us) per minute (gpm) to cubic meter per second instantly. Type in either field — results update live.
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Flow Gallon (US) per Minute (GPM) Cubic Meter per Second
1 gallon (us) per minute (gpm) = 0.0000630902 cubic meters per second
Unit
Unit
Conversion table
Selected GPM values converted to m³/s using the exact factor from this tool.
| GPM | m³/s |
|---|---|
| 0.01 | 6.30902e-7 |
| 0.1 | 0.000006309 |
| 1 | 0.0000630902 |
| 2 | 0.0001261804 |
| 3 | 0.0001892706 |
| 5 | 0.000315451 |
| 10 | 0.000630902 |
| 20 | 0.0012618039 |
| 50 | 0.0031545098 |
| 100 | 0.0063090196 |
| 1,000 | 0.0630901964 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 GPM = 0.0000630902 m³/s
1 m³/s = 15850.3231414889 GPM
To convert gallon (us) per minute (gpm) to cubic meter per second, multiply by 0.0000630902.
To convert cubic meter per second to gallon (us) per minute (gpm), multiply by 15850.3231414889.
Example: convert 10 GPM to m³/s
10 × 0.0000630902 = 0.000630902 m³/s
About these units
Short background on the units used in this conversion.
Cubic Meter per Second (m³/s)
The cubic meter per second (m³/s) is the SI unit of volumetric flow rate — volume passing a cross-section per unit time.
Cubic meters per second rate large pipelines, hydrology, and industrial process flows in metric engineering.
Frequently asked questions
How many cubic meters per second are in one gallon (us) per minute (gpm)?
One gallon (us) per minute (gpm) equals 0.0000630902 cubic meters per second. Multiply your gallons (US) per minute value by 0.0000630902 to convert to cubic meters per second.
What is the conversion formula?
m³/s = GPM × 0.0000630902The reverse is
GPM = m³/s × 15,850.3231414889, using the same exact factors as this converter.Is this Gallon (US) per Minute (GPM) to Cubic Meter per Second 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 second (m³/s) → gallon (us) per minute (gpm) (GPM)
gallon (us) per minute (gpm) (GPM) → cubic meter per day (m³/day)gallon (us) per minute (gpm) (GPM) → cubic meter per hour (m³/h)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)