Full-featured expression calculator.
A full expression-based calculator supporting +, −, ×, ÷, exponents, roots, log/ln, trig, factorial, and constants.
Runs entirely in the browser — no data leaves your device.
Expression-based input means you can type a full calculation in one line rather than pressing operator buttons step by step, which is faster for anyone comfortable with standard math notation.
Type an expression like sin(30) + sqrt(9) and press = for the result.
Toggle between degrees (default for everyday use) and radians (for calculus contexts).
Basic Ans-style recall of the last result. For more complex work, use a spreadsheet or programming REPL.
Yes — parentheses, exponents, multiplication/division, then addition/subtraction are evaluated in the conventional order, so expressions can be typed naturally without extra grouping.