Volume Flow - Online Unit Converter (2024)

Convert between volume flow units like gpm, liter/sec, cfm, m3/h.

Online Fluid Flow Unit Calculator

The calculator below can used to convert between common fluid flow units:

  • Make a Shortcut to this Calculator on Your Home Screen?

Flow Units Converting Table

The tables below can used to convert between some common used flow units:

Flow Units Converter
Convert frommultiply by
Convert to
US gpdUS gpmcfmIMP gpdIMP gpm
US gpd10.0006950.0000930.8330.000579
US gpm1438.310.13371198.60.833
Imp gpd1.20.000830.0001110.00069
Imp gpm1727.31.20.1611439.41
Flow Units Converter
Convert frommultiply by
Convert to
liter/h2.7 10-70.0000170.0010.000280.01671
US gpd4.39 10-80.00000260.0001580.0000440.00260.158
US gpm0.0000630.003790.2270.06303.785227.1
Imp gpd5.26 10-80.00000320.0001890.00005260.003160.1895
Imp gpm0.0000760.00460.2720.0764.55272.7

Select the "from" unit in the left column and follow the row until the "to" unit column.

  • gpm = gallons per minute, gpd = gallons per day, cfm = cubic feet per minute

Example - Convert from m3/h to Imperial gallons per minute (gpm)

Volume flow in m3/h must be multiplied with


to convert to Imp gpm.

Alternatively use the online fluid flow calculator above.

Related Mobile Apps from The EngineeringToolBox

  • Flow Converter App

- free apps for offline use on mobile devices.

Alternative Flow Units

1 Cubic metre/second = 22643 Barrel (oil)/h
1 Cubic metre/second = 6.29 Barrel (oil)/s
1 Cubic metre/second = 3.6 109 Cubic centimetre/hour
1 Cubic metre/second = 6 107 Cubic centimetre/minute
1 Cubic metre/second = 106 Cubic centimetre/second
1 Cubic metre/second = 127133 Cubic feet/hour
1 Cubic metre/second = 2119 Cubic feet/minute
1 Cubic metre/second = 35.3 Cubic feet/second
1 Cubic metre/second = 3600 Cubic metre/hour
1 Cubic metre/second = 60 Cubic metre/minute
1 Cubic metre/second = 4709 Cubic yards/hour
1 Cubic metre/second = 78.5 Cubic yards/minute
1 Cubic metre/second = 1.31 Cubic yards/second
1 Cubic metre/second = 13198 Gallon water/minute (UK)
1 Cubic metre/second = 15850 Gallon water/minute (US)
1 Cubic metre/second = 951019 Gallons (FI)/hour (US)
1 Cubic metre/second = 15850 Gallons (FI)/minute (US)
1 Cubic metre/second = 264.2 Gallons (FI)/second (US)
1 Cubic metre/second = 19005330 Gallons/day (UK)
1 Cubic metre/second = 791889 Gallons/hour (UK)
1 Cubic metre/second = 13198 Gallons/minute (UK)
1 Cubic metre/second = 219.97 Gallons/second (UK)
1 Cubic metre/second = 3600000 Liter/hour
1 Cubic metre/second = 60000 Liter/minute
1 Cubic metre/second = 1000 Liter/second
1 Cubic metre/second = 131981 Pounds water/minute
1 Cubic metre/second = 86400 Ton of water (metric)/24hrs

  • Convert between commonly used Volume Flow Units

cfm to m3/h Converter

Download and print cfm to m3/h Converter!

US gpm to l/s Converter

Download and print US gpm to l/s Converter!

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Volume Flow - Online Unit Converter (2024)


How do you convert volume to flow? ›

Flow rate Q is defined to be the volume V flowing past a point in time t, or Q=Vt where V is volume and t is time. The SI unit of volume is m3.

What is the unit conversion for flow rates? ›

Cubic meter per second is a unit of volumetric flow. A unit of cubic meter per second is the number of cubic meters of liquid that flows through the monitored place in one second. One cubic meter per second is equivalent to 1,000 liters per second.

What are the units for volume flow? ›

The SI unit is cubic metres per second (m3/s). Another unit used is standard cubic centimetres per minute (SCCM). In US customary units and imperial units, volumetric flow rate is often expressed as cubic feet per second (ft3/s) or gallons per minute (either US or imperial definitions).

How to calculate volume flow rate? ›

Volume Flow Rate Equation

It can also be defined as the ratio of the change in the volume of the fluid with change in time Q = d V / d t . The standard units of Q is [ m 3 / s ] cubic meter per seconds.

How do I calculate my flow? ›

The flow rate formula is the velocity of the fluid multiplied by the area of the cross-section: Q = v × A . The unit for the volumetric flow rate Q is m 3 / s . In ideal situations, the frictional forces that restrict the fluid's movement are neglected, this leads to the development of a uniform flow.

How to convert GPM to LPM? ›

1 GPM equals circa 3.79 LPM, where GPM meaning is gallons per minute, and LPM means liters per minute. To convert US gallons to liters, multiply by 3.78541.

What is a flow converter? ›

Connection type FLOW-CONVERTER converts the relative rotation about a user-specified axis between the two nodes of the connector into material flow degree of freedom (10) at the second node of a connector element.

What is the conversion rate volume? ›

Conversion volume is typically calculated as conversion rate times the total potential transactions at a given conversion point during a specified timeframe. However, it can also be calculated as the total number of completed transactions divided by the total time elapsed during these transactions.

How do you convert m3 h to GPM? ›

The following steps outline how to calculate the GPM from m3/h. First, determine the total flow rate in meters cubed per hour (m^3/h). Next, gather the formula from above = GPM = m3/H*4.40.

How is volume flow measured? ›

In S.I. units (International System of Units), volume flow rate has units of meters cubed per second, m 3 s ‍ , since it tells you the number of cubic meters of fluid that flow per second.

How do you calculate volume units? ›

In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet.

What is a unit for volume? ›

The SI unit for measuring volume is cubic meters (m 3 ), but it is also common to see units of liters (L), or cubic centimeters (cm 3 . The prefix system used in the metric system makes it the standard for scientists and most countries.

How do you convert flow to volume? ›

Yes, the Volume From Flow formula (Vf = FR * T) is applicable to any fluid, not just water, as long as the flow rate (FR) and the total time (T) are known. The key is to ensure that the flow rate is measured in a consistent unit that matches the desired volume unit outcome.

What units are used to measure flow rate? ›

In water resources, flow is often measured in units of cubic feet per second (cfs), cubic meters per second (cms), gallons per minute (gpm), or other various units. Measurement of flow in water resources is important for applications such as system control, billing, design, and many other applications.

How do you calculate rate volume? ›

How to Calculate Volume Rate of Change
  1. Choose a time period for your analysis (e.g., 10 periods, 20 periods, etc.).
  2. Calculate the difference between the current trading volume and the chosen period.
  3. Divide the difference by the trading volume from the selected period ago.

Is flow the same as volume? ›

Simply put, volume in this instance describes the sheer amount of media being used within the application. Flow velocity relates to the speed of which the media is moving within the pipeline. The measurements for volume and flow velocity are acquired by very different methods.

What is the formula for flow work? ›

The work done in pushing the fluid is: Wflow = F.s = PA. s = PV (kJ) or in a unit basis, wflow = Wflow / m = Pv (kJ/kg) Note that the flow work is expressed in terms of properties. The flow work can also be written as a rate equation.

What is the formula for flow rate conversion? ›

The empty field is calculated from the formula: Volumetric flow rate (L/h) = (flow velocity (cm/h) * (column crossectional area (cm2) /1000).

How do you convert volume flow to velocity? ›

In order to determine the Flow Rate represented as Q, we must define both the volume V and the point in time it is flowing past represented by t, or Q = V/t. Additionally Flow rate and velocity are related by the equation Q = Av where A is the cross-sectional area of flow and v is its average velocity.

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