Manning Formula Calculator

Manning Formula Calculator CalculatorScale.com

Input Parameters

Instant Real-time Calculation

Manning Roughness (n)

n (Concrete)

Flow Area (A)

m²

Hydraulic Radius (Rh)

Channel Bed Slope (S)

m/m

Result Physics

Open Channel Flow Rate (Q)

-- m³/s

Export calculation:

Calculation Logic:

The Manning Formula Calculator is governed by Q = (1 / n) × A × Rh^(2/3) × S^(1/2). It describes the mathematical and physical relationship between the fluid or atmospheric system parameters.