Calculate Flow Rate Through an Orifice – Free Online Tool

Calculate the flow rate of water through an orifice based on size, pressure, and fluid properties.

Flow Through an Orifice Calculator

About This Calculator

This calculator uses the orifice flow equation based on Bernoulli's principle. The flow rate through an orifice is proportional to the square root of the pressure differential and the cross-sectional area of the orifice.

Formula: Q = C × A × √(2 × ΔP / ρ)

Where:

  • Q = Flow rate
  • C = Discharge coefficient
  • A = Orifice area
  • ΔP = Pressure differential
  • ρ = Fluid density

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