imperial gallon per minute
Volumetric flow rateexact by definition
The imperial gallon per minute is exactly 4.54609 × 10⁻³/60 cubic metres per second, about 0.0758 L/s. It is the flow unit of older British and Commonwealth pump and pipework practice, and it still appears on legacy UK plant documentation.
Watch out: An imperial gallon is 20 percent larger than a US gallon, so 100 imp gpm is 120 US gpm. British pump curves imported into North American calculations without the conversion undersize everything downstream by a fifth.
| 1 | 4.54609 |
One imperial gallon per minute in every volumetric flow rate unit
| 6,546.37 | liter per day (L/d) | |
| 4,546.09 | cubic centimeter per minute (cm³/min) | |
| 4,546.09 | milliliter per minute (mL/min) | |
| 1,729.37 | US gallon per day (gpd) | |
| 277.419 | cubic inch per minute (in³/min) | |
| 272.765 | liter per hour (L/h) | |
| 75.7682 | milliliter per second (mL/s) | |
| 72.057 | US gallon per hour (gph) | |
| 41.1754 | barrel per day (bbl/d) | |
| 9.63262 | cubic foot per hour (cfh) | |
| 6.54637 | cubic meter per day (m³/d) | |
| 4.54609 | liter per minute (L/min) | |
| 1.20095 | US gallon per minute (gpm) | |
| 1 | imperial gallon per minute (imp gpm)this unit | |
| 0.272765 | cubic meter per hour (m³/h) | |
| 0.160544 | cubic foot per minute (cfm) | |
| 0.0757682 | liter per second (L/s) | |
| 0.00530723 | acre-foot per day (ac·ft/d) | |
| 0.00454609 | cubic meter per minute (m³/min) | |
| 0.00267573 | cubic foot per second (cfs) | |
| 0.00172937 | million US gallons per day (MGD) | |
| 0.00144 | million imperial gallons per day (MIGD) | |
| 0.0000757682 | cubic meter per second (m³/s) |
Solvers that use volumetric flow rate