Fluid calculators
Flow, pipe velocity, Reynolds number, pressure drop and pump calculators.
Calculate flow rate step by step: Q = A × v, with A = π × D² ÷ 4.
Calculate pipe velocity step by step: v = Q ÷ A = 4Q ÷ (π D²).
Calculate reynolds number step by step: Re = ρ × v × D ÷ μ.
Calculate pressure drop step by step: ΔP = (f × L ÷ D + ΣK) × ρv² ÷ 2 (Darcy–Weisbach).
Calculate pump head step by step: H = Δz + h_f + (P_d − P_s) ÷ (ρg).
Calculate pump efficiency step by step: η = ρ g Q H ÷ P_shaft.