Fluid Converter Convert fluid flow rates (l/s, l/min, m³/h, gal/min), volumes and pressures for plumbing, pumps, irrigation and HVAC.
Flow Rate Volume Pressure
Source Unit Litre per minute
Cubic Millimeter per second Cubic Centimeter per second Millilitre per second Centilitre per second Decilitre per second Litre per second Litre per minute Litre per hour Kilolitre per second Kilolitre per minute Kilolitre per hour Cubic meter per second Cubic meter per minute Cubic meter per hour Cubic kilometer per second Teaspoon per second Tablespoon per second Cubic inch per second Cubic inch per minute Cubic inch per hour Fluid Ounce per second Fluid Ounce per minute Fluid Ounce per hour Cup per second Pint per second Pint per minute Pint per hour Quart per second Gallon per second Gallon per minute Gallon per hour Cubic foot per second Cubic foot per minute Cubic foot per hour Cubic yard per second Cubic yard per minute Cubic yard per hour
Target Unit Gallon per minute
Cubic Millimeter per second Cubic Centimeter per second Millilitre per second Centilitre per second Decilitre per second Litre per second Litre per minute Litre per hour Kilolitre per second Kilolitre per minute Kilolitre per hour Cubic meter per second Cubic meter per minute Cubic meter per hour Cubic kilometer per second Teaspoon per second Tablespoon per second Cubic inch per second Cubic inch per minute Cubic inch per hour Fluid Ounce per second Fluid Ounce per minute Fluid Ounce per hour Cup per second Pint per second Pint per minute Pint per hour Quart per second Gallon per second Gallon per minute Gallon per hour Cubic foot per second Cubic foot per minute Cubic foot per hour Cubic yard per second Cubic yard per minute Cubic yard per hour
About the Fluid Converter Volumetric flow rate tells how much fluid passes a point per unit of time. Pump and tap ratings in Europe are usually given in liters per minute or cubic meters per hour, while US equipment uses gallons per minute (GPM).
Ventilation and air-conditioning capacity is commonly quoted in cubic feet per minute (CFM); 1 CFM is about 1.7 m³/h.
Flow, volume and pressure belong together: a pipe’s flow depends on the pressure difference driving it, and filling time is simply volume divided by flow rate.
See how the measurement systems relate on our Unit Systems page .