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Pump Specific Speed Calculator

Smart Unit Conversion - Enter values in any unit!

Inputs & Parameters

Rotational Speed (N):

Flow Rate (Q):

Total Head (H):

N_s = \frac{N \sqrt{Q}}{H^{0.75}}

N= ? RPM

Q= ? m³/h

H= ? m

N_s= ?

Step 2: Calculate using formula

N_s=

\frac{N \sqrt{Q}}{H^{0.75}}

Enter values and click Calculate to see substituted formula

Enter values and click Calculate...