Broad Crested Weir Calculator

Enter value and click on calculate. Result will be displayed.

Formula:
q = Cd × b × h2 × (2g (h1 - h2)) 1/2

Width of the Weir :
m
Head 1 on the Weir (h1) :
m
Head 2 on the Weir (h2) :
m
Discharge Constant (Cd) :

Result :

Water Flow Rate (q) :
What is broad crested weir? Weirs are installed for many purposes on streams and rivers and they have different types.
The weir flow rate calculator helps to quickly solve the broad crested weir equation by using the inputted values. All the values are required in SI units.
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