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Physics & Engineering / Civil & Mechanical Engineering
Fluid Flow (Reynolds Number) Calculator
Flow Regimes
• Re < 2,300: Laminar flow
• 2,300 ≤ Re < 4,000: Transitional flow
• Re ≥ 4,000: Turbulent flow
Formula: Re = ρVD/μ
Use this fluid flow (reynolds number) calculator to compute civil & mechanical engineering results from your inputs.