Flow Rate Calculator
Calculate volumetric and mass flow rates for fluids
Method 1: From Area and Velocity (Q = A * v)
Method 2: From Volume and Time (Q = V / t)
For Mass Flow Rate
Flow Rate Formulas
Volumetric Flow Rate: Q = A * v = V / t
Mass Flow Rate: dm/dt = rho * Q = m / t
Pipe Area: A = pi * (d/2)²
Continuity: A1 * v1 = A2 * v2
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: University Physics
by Young & Freedman
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.