How does the Nozzle Flow Calculator work?

Apply Bernoulli equation with contraction coefficient Then: Ideal: V = √(2gh), Actual: V = C_d × √(2gh) Then: Discharge: Q = C_d × A × V.

Can you give an example of how to use the Nozzle Flow Calculator?

Example: Input h = 5 m head, A = 10 mm², C_d = 0.6 (typical) gives a result of V ≈ 5.4 m/s, Q ≈ 0.054 L/s (Orifice discharge).

Is the Nozzle Flow Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Nozzle Flow Calculator?

Our Nozzle Flow Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Upstream Pressure (psia)

Nozzle Area (in²)

Temperature (°R)

Nozzle flow calculates jet velocity and discharge rate from a small opening. Used in sprinklers, turbines, and flow control.

Symbol	Name	Unit	Description
V	√(2gh)	—	√(2gh)

Difficulty:intermediate

References

›Nozzle Flow — Wikipedia

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