Free engineering tools
Browser-based tools for students and practicing engineers. No installs, no accounts, no cost — pick a calculator and get a clear, correct answer in SI or imperial units.
Free beam calculator for structural engineers and students. Reactions, shear, moment, deflection and stress — with clear diagrams.
Free thermodynamics calculators built on standard textbook tables for water, R-134a and ideal gases. SI and imperial.
Every tool is free to use in your browser. No sign-up, no paywall, no watered-down trial.
Switch units on the fly. The calculators speak both metric and US customary, so they fit whatever your class or job uses.
Results come from standard textbook tables and well-established formulas — the same references your coursework relies on.