Flow Measurement Calculator

Calculate volumetric flow rate through Venturi tubes or orifice plates.

Pipe Diameter (D1):

Throat/Orifice Diameter (D2):

Fluid Density (ρ):

Differential Pressure (ΔP):

Discharge Coefficient (C):

Volumetric Flow Rate (Q):

Mass Flow Rate (Qm):

Beta Ratio (β = D2/D1):

Throat Area (A2):