Chemical Engineering Calculators — Engineering
Unit operation sizing: heat exchangers, distillation columns, cooling towers, and flash point estimation. These give preliminary duty and sizing figures for coursework and feasibility work rather than detailed process design.
All Chemical Engineering Calculators
Calculate cooling tower range, approach, and effectiveness from water and air conditions.
Estimate the number of theoretical stages using McCabe-Thiele method for binary distillation.
Estimate flash point of liquid mixtures from component flash points and mole fractions.
Calculate heat duty, LMTD, and required area for shell-and-tube heat exchangers.
Perform mass balance calculations for steady-state processes with multiple streams.
Calculate flow rate through an orifice plate from differential pressure and orifice diameter.
Calculate the volume of acid or base needed to neutralize a solution to target pH.
Calculate pressure drop in piping systems from flow rate, pipe size, and fittings.
Calculate Net Positive Suction Head available and required to prevent cavitation.
Calculate chemical reaction rate from concentration, temperature, and activation energy.
Convert between dynamic and kinematic viscosity units including cP, cSt, Pa·s, and Stokes.
About Chemical Engineering Calculators
Unit operation sizing: heat exchangers, distillation columns, cooling towers, and flash point estimation. These give preliminary duty and sizing figures for coursework and feasibility work rather than detailed process design.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common chemical engineering scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 11 tools: Cooling Tower Calculator, Distillation Column Calculator, Flash Point Calculator, Heat Exchanger Calculator, Mass Balance Calculator, Orifice Flow Calculator, pH Neutralization Calculator, Pipe Pressure Drop Calculator, and 3 more. Each calculator is free to use with no signup required.