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

Water Hammer Pressure Calculator

Calculates the pressure surge caused by sudden valve closure or rapid flow changes in a pipe. Essential for engineers designing water supply, oil, or industrial piping systems to avoid pipe bursts.

Fluid Density (kg/m³)

Pressure Wave Speed (m/s)

Velocity Change (m/s)

Safety Factor

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Fluid Mechanics

Orifice Flow Discharge Calculator

Calculates the volumetric flow rate through an orifice plate or opening given the upstream-to-downstream pressure difference. Used in flow metering, tank drainage design, and hydraulic control systems.

Orifice Area (m²)

Discharge Coefficient

Pressure Difference (Pa)

Fluid Density (kg/m³)

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Key differences

	Water Hammer Pressure Calculator	Orifice Flow Discharge Calculator
Category	Fluid Mechanics	Fluid Mechanics
Inputs required	4	4
Result	Water Hammer Pressure (Pa)	Flow Rate (m³/s)
What it does	Calculates the pressure surge caused by sudden valve closure or rapid flow changes in a pipe. Essential for engineers designing water supply, oil, or industrial piping systems to avoid pipe bursts.	Calculates the volumetric flow rate through an orifice plate or opening given the upstream-to-downstream pressure difference. Used in flow metering, tank drainage design, and hydraulic control systems.