HydroCalc - Manning Calculator

HydroCalc: Manning Flow is a fast, reliable tool for calculating open channel and pipe flow using the Manning equation.

Designed for engineers, designers, and students, HydroCalc makes it easy to evaluate hydraulic conditions in the field or at your desk—without spreadsheets or manual calculations.

Key Features

• Compute flow, velocity, depth, slope, and hydraulic radius • Supports both open channel and circular pipe conditions • Flexible input options—enter known values and calculate the rest • Clean, intuitive interface for quick results • Works entirely offline—no internet connection required

Built for Practical Use

HydroCalc is designed with real-world applications in mind, including: • Stormwater design • Drainage analysis • Pipe flow evaluation • Open channel hydraulics

Whether you’re checking a quick calculation in the field or verifying results during design, HydroCalc provides a dependable solution in seconds.