Scientific Calculator
Full scientific calculator with trig, log, history, and keyboard support.
About the calculator
Updated June 2026 · 100% client-side — your data never leaves your browser.
A full scientific calculator that evaluates whole expressions at once — type or click sin, cos, tan, square root, logarithms, powers, parentheses and the constants π and e, and see the result with proper operator precedence. A running history keeps your recent calculations so you can refer back or reuse a previous answer.
It accepts your physical keyboard, so you can compute as fast as you type: digits and operators go straight into the display, Enter calculates and Backspace deletes. Everything is evaluated locally in your browser, with nothing sent to a server.
Evaluate full expressions with operator precedence and parentheses.
sin, cos, tan, sqrt, log, ln, powers, π and e.
Type digits and operators; Enter calculates, Backspace deletes.
Recent calculations are kept so you can refer back.
Frequently asked questions
What functions are supported?
Basic arithmetic plus sin, cos, tan, sqrt, log (base 10), ln (natural log), powers (^), absolute value, and the constants π and e.
Are angles in degrees or radians?
Trigonometric functions use radians, matching standard math libraries. Multiply degrees by π/180 to convert.
Can I use my keyboard?
Yes. Number and operator keys type into the display, Enter (or =) calculates, Backspace deletes, and Escape clears.
Is anything sent to a server?
No. All calculations happen in your browser.