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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

Pipe Friction Loss Calculator

Estimate the pressure head lost to friction in any pipe system using the Darcy-Weisbach equation. Use it when designing water supply lines, irrigation networks, or HVAC piping to ensure adequate flow pressure.

Flow Rate (L/min)

Pipe Diameter (mm)

Pipe Length (m)

Fluid Density (kg/m³)

Fill in the required fields to see your result.

Key differences

	Pipe Flow Velocity Calculator	Pipe Friction Loss Calculator
Category	Fluid Mechanics	Fluid Mechanics
Inputs required	2	4
Result	Flow Velocity (m/s)	Pressure Loss (Pa)
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.	Estimate the pressure head lost to friction in any pipe system using the Darcy-Weisbach equation. Use it when designing water supply lines, irrigation networks, or HVAC piping to ensure adequate flow pressure.