Pipe Pressure Drop Calculator

Notes & Limitations:

Formulas Used:

• Velocity (v) = Flow Rate (Q) / Cross-sectional Area (A)
• Reynolds Number (Re) = (ρ × v × D) / μ
• Friction Factor (f): Laminar (Re < 2300): f = 64/Re, Turbulent: Colebrook-White approximation
• Pressure Drop (ΔP) = f × (L/D) × (ρ × v² / 2)

Limitations:

• For straight, circular pipes only (no fittings, elbows, valves)
• Assumes fully developed, steady, incompressible flow
• For Newtonian fluids only
• Accuracy decreases for very rough pipes or extreme velocities
• Temperature effects on fluid properties not accounted for