Rectangular Weir Flow Rate Calculator

Rectangular Weir Flow Rate Calculator

Calculate the flow rate over a rectangular weir using: $$ Q = \frac{2}{3}\, C_d\, L\, \sqrt{2g}\, H^{3/2} $$

Step 1: Enter Parameters

e.g., 0.62 (typical value for a rectangular weir)

e.g., 1 m

e.g., 0.1 m

Formula: $$ Q = \frac{2}{3}\, C_d\, L\, \sqrt{2g}\, H^{3/2} $$
with \(g = 9.81\, \text{m/s}^2\).