Flow Rate Calculator
Find flow rate from pipe dimensions and velocity.
CALCULATE
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Formulas
Q = A × v = π(d/2)² × vVolumetric flow rate from cross-section and velocity
Flow Rate
A 50mm pipe at 2 m/s: Q = 3.93 L/s. Household tap: ~0.1-0.2 L/s. Fire hose: ~15-20 L/s. Used in plumbing, HVAC, chemical processing.
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