CivilCalc is the Reverse Polish Notation (RPN) scientific calculator built for engineers and other users who prefer the RPN way.

This UWP app supports fluent design and scales from mobile to desktop supporting both light and dark themes.

Scientific Calculator
The main scientific calculator uses the noun-noun-verb methodology of RPN made popular by HP Calculators. The calculator supports commonly used arithmetic, trigonometric (both degrees and radians), and logarithmic functions in a compact form that works equally well on a mobile device, tablet, or desktop.

Equation Solver:
In addition to the calculator functionality, the application also offers an equation solver for common engineering equations. The application comes with two civil engineering equations built in:
Manning’s Equation for Open Channel Flow
Vertical Curve Calculator

More equations are planned in a paid “Pro” version to come.