# Rectangular Weir Flow Rate Calculator

Online calculator for measuring the water flow rate of rectangle shaped weir. The measurement is based on **Bernoullis equation**.

## Rectangular Weir Flow Rate Calculation

Online calculator for measuring the water flow rate of rectangle shaped weir. The measurement is based on **Bernoullis equation**.

Code to add this calci to your website

**Formula**
The Bernoulli's equation is as follows
q = 2/3 ×C_{d }×b ×(2g)^{1/2 }×h^{3/2}
Where,
q = Flow Rate
C_{d} = Discharge Constant
b = Width of the Weir
g = gravity (9.81 m/s²)
h = Head on the Weir

Free rectangular weir calculator for exact measurement of flow rate. Simple and easy to use.