Chemical Engineering Calculators

15 free, browser-based tools for process engineers — sizing, converters, and cost estimators. Click any calculator below to open it.

Estimate heat transfer area and duty for shell & tube exchangers.

Convert mass flow rate between kg/h, lb/h, t/h and more.

Calculate NPSH available for pump suction to avoid cavitation.

Estimate the NPSH required by a centrifugal pump.

Compute pipe friction and fitting head loss, including elbows.

Convert pressure between bar, psi, kPa, atm and more.

Calculate hydraulic and shaft power required for a pump.

Size batch or continuous reactors from process parameters.

Convert temperature between Celsius, Fahrenheit and Kelvin.

Determine Cv/Kv and valve size from flow and pressure drop.

Convert volumetric flow rate between m³/h, GPM, CFM and more.

Estimate pipeline material and installation cost by size and schedule.

Calculate liquid volume in a horizontal cylindrical tank.

Calculate liquid volume in a vertical cylindrical tank.

Estimate agitator/mixer power draw for a stirred vessel.

Need help choosing a tool? Visit the blog for worked examples, or go back to Home.