Mathway From $3.33/mo · Free plan 9.0 Visit Engineering Equation Solver (EES)
fchart.com
Spec sheet
- Purpose
- EES solves coupled nonlinear algebraic and differential equations and also supports integration, optimization, uncertainty analysis, regression, unit conversion, and plots.Read 13 Nov 2026 · fchart.com
- Headquarters
- Madison, Wisconsin, United StatesRead 4 Oct 2026 · fchart.com
- Delivery and security
- The maker states purchases are available through a secure webstore and software is downloaded with a license file and unique password sent by email.Read 13 Nov 2026 · fchart.com
- Demo limitations
- The demo is limited to 50 equations, has reduced property data, disables printing, copying and saving, and expires after 30 days.Read 13 Nov 2026 · fchart.com
- Equation capacity
- Commercial supports up to 6,000 simultaneous equations; Professional supports 12,000 and 64-bit Professional supports 24,000.Read 13 Nov 2026 · fchart.com
- Licensing restriction
- Named-user licenses are not perpetual; without IUTS renewal they terminate after five years, and floating licenses are not offered.Read 13 Nov 2026 · fchart.com
- Maker background
- F-Chart Software says it has produced thermal energy analysis software since 1975 and lists its address in Madison, Wisconsin.Read 13 Nov 2026 · fchart.com
- Operating systems
- EES was developed for Windows; the FAQ says it can run on Mac using Windows virtualization/Boot Camp and on Linux using Wine.Read 13 Nov 2026 · fchart.com
- Optimization and analysis
- EES offers curve-fitting, linear regression, property and contour plots, uncertainty analyses, and complex and differential equation solutions.Read 13 Nov 2026 · fchart.com
- Professional capabilities
- Professional includes a Python interface and supports communication with MATLAB and Excel through COM and DDE.Read 13 Nov 2026 · fchart.com
- REFPROP integration
- EES can read NIST REFPROP fluid files; an optional EES_REFPROP interface connects its property database with EES features.Read 13 Nov 2026 · fchart.com
- Support and training
- Training resources include online help, YouTube tutorials, the Mastering EES ebook, and potentially an on-site one-day course.Read 13 Nov 2026 · fchart.com
- Thermophysical properties
- It includes high-accuracy thermodynamic and transport property data for hundreds of substances.Read 13 Nov 2026 · fchart.com
Plans and prices
Student EES License $160, paid once One year duration 3000 simultaneous equations · One year duration Read 24 Sep 2026 · fchart.com
EES Commercial Single-User Priced on request One year of Instant Update and Technical Service included Read 24 Sep 2026 · fchart.com
EES Professional Single-User Priced on request One year of Instant Update and Technical Service included Read 24 Sep 2026 · fchart.com
Student EES License $160 a year One year duration Up to 3,000 simultaneous equations · print, copy and save · technical support Read 13 Nov 2026 · fchart.com
EES Commercial (single-user) $600, paid once Includes one year of Instant Update and Technical Service Single-user · up to 6,000 simultaneous equations Read 13 Nov 2026 · fchart.com
EES Professional (single-user) $1,200, paid once Includes one year of Instant Update and Technical Service Single-user · up to 12,000 equations; 64-bit Professional up to 24,000 Read 13 Nov 2026 · fchart.com
Where Specifiction places it
- Calculators#4 of 217.9
Alternatives to Engineering Equation Solver (EES)All alternatives →
Mathway From $3.33/mo · Free plan 9.0 Visit