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Flow Rate Formula

GoVolume Flow Rate Formula

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Volume flow rate is the quantity of fluid that passes through a given point or area in a system over a specific period of time. Check FAQs

F v = A \cdot V avg

F_v - Volume Flow Rate?A - Pipe Cross Sectional Area?V_avg - Fluid Average Velocity?

Flow Rate Example

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With units

Only example

Here is how the Flow Rate equation looks like with Values.

Here is how the Flow Rate equation looks like with Units.

Here is how the Flow Rate equation looks like.

1.1916 = 0.36 \cdot 3.31

1.1916m³/s = 0.36m² \cdot 3.31m/s

1.1916 = 0.36 \cdot 3.31

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Flow Rate Solution

Follow our step by step solution on how to calculate Flow Rate?

FIRST Step Consider the formula

F v = A \cdot V avg

Next Step Substitute values of Variables

∴

F v = 0.36m² \cdot 3.31m/s

Next Step Prepare to Evaluate

∴

F v = 0.36 \cdot 3.31

LAST Step Evaluate

∴

F v = 1.1916m³/s

Flow Rate Formula Elements

Variables

Volume Flow Rate

Volume flow rate is the quantity of fluid that passes through a given point or area in a system over a specific period of time.

Symbol: F_v

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Volume Flow Rate

Pipe Cross Sectional Area

Pipe Cross Sectional Area is the internal surface area through which a fluid flows, perpendicular to the direction of flow.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Pipe Cross Sectional Area

Fluid Average Velocity

Fluid Average Velocity is the mean speed at which fluid particles travel through a cross-section of a conduit, influencing flow rate and dynamics, typically measured in meters per second (m/s).

Symbol: V_avg

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Fluid Average Velocity

Other Formulas to find Volume Flow Rate

Go Volume Flow Rate

F v = \frac{Q}{ρ m}

Other formulas in Flow Measurement category

Go Reynolds number of fluid flowing in Pipe

R = \frac{V \cdot D \cdot ρ}{µ a}

Go Mass Flow Rate

Q = ρ m \cdot F v

Go Pipe Diameter

D = \frac{f \cdot L p \cdot {V avg}^{2}}{2 \cdot H f \cdot [g]}

Go Drag Coefficient of Pipe

C D = \frac{F \cdot 2 \cdot [g]}{γ \cdot A \cdot V}

How to Evaluate Flow Rate?

Flow Rate evaluator uses Volume Flow Rate = Pipe Cross Sectional Area*Fluid Average Velocity to evaluate the Volume Flow Rate, The Flow Rate formula is defined as the volume of fluid that is passing through a given cross-sectional area per unit time. Volume Flow Rate is denoted by F_v symbol.

How to evaluate Flow Rate using this online evaluator? To use this online evaluator for Flow Rate, enter Pipe Cross Sectional Area (A) & Fluid Average Velocity (V_avg) and hit the calculate button.

FAQs on Flow Rate

What is the formula to find Flow Rate?

The formula of Flow Rate is expressed as Volume Flow Rate = Pipe Cross Sectional Area*Fluid Average Velocity. Here is an example- 0.1986 = 0.36*3.31.

How to calculate Flow Rate?

With Pipe Cross Sectional Area (A) & Fluid Average Velocity (V_avg) we can find Flow Rate using the formula - Volume Flow Rate = Pipe Cross Sectional Area*Fluid Average Velocity.

What are the other ways to Calculate Volume Flow Rate?

Here are the different ways to Calculate Volume Flow Rate-

Volume Flow Rate=Mass Flow Rate/Material Density

Can the Flow Rate be negative?

No, the Flow Rate, measured in Volumetric Flow Rate cannot be negative.

Which unit is used to measure Flow Rate?

Flow Rate is usually measured using the Cubic Meter per Second[m³/s] for Volumetric Flow Rate. Cubic Meter per Day[m³/s], Cubic Meter per Hour[m³/s], Cubic Meter per Minute[m³/s] are the few other units in which Flow Rate can be measured.

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Flow Rate Formula

​GoVolume Flow Rate Formula

Flow Rate Example

Flow Rate Solution

Flow Rate Formula Elements

Other Formulas to find Volume Flow Rate

Other formulas in Flow Measurement category

How to Evaluate Flow Rate?

FAQs on Flow Rate

Variable Name

GoVolume Flow Rate Formula