Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Overview
Chemistry
Earth Science
Engineering
Everyday Life
Finance
Health & Medicine
Life Sciences
Mathematics
Physics
Astrophysics
Crystallography
Elasticity
Electric Circuits
Electromagnetism
Fluid Mechanics
Bubbles
Fluid Dynamics
Accelerating Flow
Fluid Ejection
Fluid Flow
Friction & Drag
Flow Regime & Characteristics
Friction & Pipe Flow
Alashkar Equation Calculator
Avci–Kargoz Equation Calculator
Barr Equation Calculator
Bellos–Nalbantis–Tsakiris Equation Calculator
Brkić Equation Calculator
Buzelli Equation Calculator
Chen Equation Calculator
Cheng Equation Calculator
Churchill Equation Calculator (1973)
Churchill Equation Calculator (1977)
Colebrook–White Equation Calculator
Darcy–Weisbach Equation Calculator
Eck Equation Calculator
Evangelides–Papaevangelou–Tzimopoulos Equation Calculator
Fang Equation Calculator
Fire Hose Friction Loss Calculator
Goudar–Sonnad Equation Calculator
Haaland Equation Calculator
Jain Equation Calculator
Manadilli Equation Calculator
Moody Equation Calculator
Niazkar Equation Calculator
Romeo–Royo–Monzon Equation Calculator
Round Equation Calculator
Serghides Equation Calculator
Swamee–Jain Equation Calculator
Tkachenko–Mileikovskyi Equation Calculator (Refined)
Tkachenko–Mileikovskyi Equation Calculator (Standard)
Tsal Equation Calculator
Vatankhah–Kouchakzadeh Equation Calculator
Wood Equation Calculator
Zigrang–Sylvester Equation Calculator
Ideal Gases
Pipes & Channels
Pumps & Nozzles
Viscosity Flow
Vortices
Fluid Mechanics Dimensionless Numbers
Fluid Statics
Heat Transfer
Hydrology
Pressure
Mechanics
Nuclear Physics
Optics
Quantum Mechanics
Quantum Physics
Relativity
Statistical Physics
Thermodynamics
Waves
Society & Culture
Space
Technological World
Units
WolframAlpha
Churchill Equation Calculator (1973)
Use the 1973 Churchill approximation to determine the Darcy friction factor.
Reynolds number:
pipe roughness height:
pipe diameter:
Compute
