Free Scientific Calculator — Browser-Only, Works Offline
A full-featured scientific calculator right in your browser. Trigonometric, logarithmic, power, and factorial functions with memory and parentheses. No app to install, no account needed, works completely offline. Nothing leaves your browser.
History
About This Scientific Calculator
This browser-based scientific calculator provides all the functions you need for math, science, and engineering calculations. It supports trigonometric functions (sin, cos, tan), logarithms (log base 10 and natural log), square roots, exponents, factorials, and constants like pi and e. Memory functions (M+, M-, MR, MC) allow you to store and recall values during complex calculations.
Available Functions
Trigonometry: sin, cos, tan (input in radians)
Logarithms: log (base 10), ln (natural log)
Powers: x², xy, √x, 1/x
Other: n! (factorial), π, e, +/-, %
Memory: MC (clear), MR (recall), M+ (add), M- (subtract)
Keyboard Support
You can use your keyboard for faster input. Number keys, operators (+, -, *, /), Enter for equals, Backspace to delete, Escape to clear, and parentheses all work as expected. This makes the calculator efficient for rapid calculations without needing to click each button.
Why Use a Browser Calculator?
No app store downloads, no disk space consumed, no account creation, no updates to install. This calculator loads instantly in any modern browser and works completely offline once loaded. It is ideal for students, professionals, and anyone who needs quick scientific calculations without the overhead of installing dedicated software.