Flow Converter

This online Flow Converter helps you quickly and accurately convert between various flow rate units such as liters per second, cubic meters per hour, gallons per minute, and more. It supports both metric and imperial units, handles extremely large or small values with high precision, and allows for custom rounding and number formatting.

With support for a wide range of units and customizable display options, it adapts perfectly to your workflow - on desktop or mobile - providing fast, reliable results whenever you need them.

Metric / SI

Cubic Meter per Day [m³/d]
Cubic Meter per Hour [m³/h]
Cubic Meter per Minute [m³/min]
Cubic Meter per Second [m³/s]
Cubic Centimeter per Day [cm³/d]
Cubic Centimeter per Hour [cm³/h]
Cubic Centimeter per Minute [cm³/min]
Cubic Centimeter per Second [cm³/s]
Liter per Day [L/d]
Liter per Hour [L/h]
Liter per Minute [L/min]
Liter per Second [L/s]
Milliliter per Day [mL/d]
Milliliter per Hour [mL/h]
Milliliter per Minute [mL/min]
Milliliter per Second [mL/s]

US / Imperial

Gallon (US) per Day [gal (US)/d]
Gallon (US) per Hour [gal (US)/h]
Gallon (US) per Minute [gal (US)/min]
Gallon (US) per Second [gal (US)/s]
Gallon (UK) per Day [gal (UK)/d]
Gallon (UK) per Hour [gal (UK)/h]
Gallon (UK) per Minute [gal (UK)/min]
Gallon (UK) per Second [gal (UK)/s]
Kilobarrel (US) per Day [kbbl (US)/d]
Barrel (US) per Day [bbl (US)/d]
Barrel (US) per Hour [bbl (US)/h]
Barrel (US) per Minute [bbl (US)/min]
Barrel (US) per Second [bbl (US)/s]
Acre-Foot per Year [ac*ft/y]
Acre-Foot per Day [ac*ft/d]
Acre-Foot per Hour [ac*ft/h]
Hundred-Cubic Foot per Day [Ccf/d]
Hundred-Cubic Foot per Hour [Ccf/h]
Hundred-Cubic Foot per Min [Ccf/min]
Ounce per Hour [oz/h]
Ounce per Minute [oz/min]
Ounce per Second [oz/s]
Ounce (UK) per Hour [oz (UK)/h]
Ounce (UK) per Minute [oz (UK)/min]
Ounce (UK) per Second [oz (UK)/s]
Cubic Yard per Hour [yd³/h]
Cubic Yard per Minute [yd³/min]
Cubic Yard per Second [yd³/s]
Cubic Foot per Hour [ft³/h]
Cubic Foot per Minute [ft³/min]
Cubic Foot per Second [ft³/s]
Cubic Inch per Hour [in³/h]
Cubic Inch per Minute [in³/min]
Cubic Inch per Second [in³/s]
Rounding decimals
Decimal separator
Thousands separator
Keyboard
Input size
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FAQs

What is flow rate?

Flow rate measures how much fluid passes through a point or system over a specific period of time. It can be expressed in units like liters per second (L/s), cubic meters per hour (m³/h), or gallons per minute (GPM).

Why are there different flow rate units?

Different industries and regions use different measurement systems. Metric units such as L/s and m³/h are common internationally, while imperial units like GPM are widely used in the United States and some other countries.

How can I convert multiple flow units at once?

Simply enter a value, and this converter will instantly display results in all major flow units - both metric and imperial - without manual calculations.

What is the most commonly used flow rate unit?

The choice of unit depends on the application. For example, L/s and m³/h are standard in engineering and scientific contexts, while GPM is common in plumbing, agriculture, and industrial processes in the US.

How can I ensure high accuracy in flow conversions?

This converter uses precise conversion factors and allows you to adjust the number of decimal places for maximum accuracy.

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