Engineering Tools

Professional-grade calculators for chemical, mechanical, and process engineering. All computations run instantly in your browser.

Fluid Mechanics

Reynolds Number

Flow regime analysis

Pipe Flow

Darcy-Weisbach pressure drop

Pump Curve

System curve & operating point

Compressor Sizing

Isentropic & polytropic compression

Heat Transfer

Heat Exchanger (LMTD)

LMTD & effectiveness-NTU

Steam Tables

Saturation properties

Psychrometric

Humid air properties

Reaction Engineering

CSTR / PFR Design

Ideal reactor sizing

Batch Reactor

Batch reaction time

Separation

VLE Calculator

Raoult's law equilibrium

Flash Calculation

Rachford-Rice flash

McCabe-Thiele

Binary distillation column design

Thermodynamics

Gas Law Calculator

Ideal gas law

Density Calculator

Gas & liquid density

Molecular Weight

Elemental composition

Process Control

PID Tuning

Z-N & Cohen-Coon methods

Control Valve

Cv sizing for liquids & gases

Relief Valve

API 520 PRV orifice sizing

Vessel Design

Pressure Vessel

ASME VIII wall thickness

Utilities & Economics

Material Balance

Mass & mole balance

Economic Analysis

NPV, IRR & payback