Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Pipe Flow Velocity Calculator

Find the average velocity of fluid flowing inside a circular pipe from the volumetric flow rate and pipe diameter. Essential for checking whether flow falls within recommended velocity limits to avoid erosion or excessive head loss.

Flow Rate (m³/s)

Pipe Diameter (m)

Fill in the required fields to see your result.

Fluid Mechanics

Venturi Meter Flow Calculator

Determine the volumetric flow rate of a fluid passing through a venturi meter. Use this when designing pipelines or calibrating flow measurement devices in industrial systems.

Throat Diameter (m)

Pressure Difference (Pa)

Fluid Density (kg/m³)

Discharge Coefficient

Fill in the required fields to see your result.

Key differences

	Pipe Flow Velocity Calculator	Venturi Meter Flow Calculator
Category	Fluid Mechanics	Fluid Mechanics
Inputs required	2	4
Result	Flow Velocity (m/s)	Flow Rate (m³/s)
What it does	Find the average velocity of fluid flowing inside a circular pipe from the volumetric flow rate and pipe diameter. Essential for checking whether flow falls within recommended velocity limits to avoid erosion or excessive head loss.	Determine the volumetric flow rate of a fluid passing through a venturi meter. Use this when designing pipelines or calibrating flow measurement devices in industrial systems.