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
See Also
Other calculators in Civil & Mechanical Engineering