Flow Rate Calculator
Convert volumetric flow rate between cubic meters per second, liters per minute, gallons per minute, and cubic feet per minute. Enter the Value, choose the From unit, choose the To unit, and the calculator returns the converted flow plus equivalents for all supported units. It is useful for plumbing, irrigation, pumps, HVAC, aquariums, labs, and process measurements.
What flow rate means
Flow rate is volume divided by time. The form converts through cubic meters per second using these factors: 1 L/min = 1 ÷ 60000 m³/s, 1 gal/min = 0.0000630902 m³/s, and 1 ft³/min = 0.000471947 m³/s.
For example, 10 gal/min equals 10 × 0.0000630902 = 0.000630902 m³/s. Dividing by 1 ÷ 60000 gives about 37.854 L/min.
Quick references
| Flow rate | Equivalent |
|---|---|
| 1 m³/s | 60,000 L/min |
| 1 gal/min | 0.0000630902 m³/s |
| 1 ft³/min | 0.000471947 m³/s |
Real systems lose flow from pipe length, filters, elevation, fittings, and viscosity. For related volume and building estimates, see the volume converter, water demand calculator, or shower water usage calculator.