Engineering Calculators

Professional engineering calculators for pump systems, fluid dynamics, and more

Calculate pump performance changes based on speed or diameter variations using affinity laws.

Calculate shaft power required for pumps based on flow rate, head, specific gravity, and efficiency.

Calculate suction specific speed (Nss) to evaluate pump cavitation performance and NPSH requirements.

Calculate pump specific speed (Ns) to determine pump type and optimal operating characteristics.

Calculate pump efficiency based on flow rate, head, specific gravity, and shaft power input.

Check a rated impeller diameter against its minimum and maximum margin limits, and see where it falls on the curve.

Calculate differential pressure from pump head, specific gravity using standard fluid mechanics formulas.

Calculate pump differential head from discharge and suction pressures with specific gravity correction.

Calculate density from mass and volume with support for multiple unit systems.

Calculate kinematic viscosity from dynamic viscosity and density for fluid property analysis.

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