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Scientific Calculator

Advanced scientific calculator

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About Scientific Calculator

Scientific Calculator evaluates expressions with trigonometric functions, logarithms, square roots, exponents, and parentheses, entirely in your browser — type an expression or build it with the buttons, and press equals for an instant result. Includes a memory register (M+/MR/MC) and a working Euler's number button.

How to use Scientific Calculator

  1. 1Type an expression directly into the display, or build it using the number and function buttons.
  2. 2Use function buttons like sin(, cos(, log(, sqrt( to insert scientific functions — they auto-add closing parentheses.
  3. 3Use "^" for exponents and parentheses to control the order of operations.
  4. 4Press "=" or Enter to evaluate the expression and see the result.

Frequently Asked Questions

Are trig functions in degrees or radians?

Radians only — sin(, cos(, and tan( all operate in radians; there's no degree mode toggle. To work with degrees, convert first (degrees × π / 180).

Does the "e" button insert Euler's number?

Yes — pressing "e" on its own inserts Euler's number (≈2.71828). It also correctly leaves scientific notation alone, so typing "2e5" directly still means 2×10⁵, not 2×Euler's number×5.

Does it have memory functions?

Yes — M+ adds the current result to memory, MR recalls the stored value into the expression, and MC clears memory. An "M" indicator appears next to the result whenever memory holds a non-zero value. There's no factorial button.

Is Scientific Calculator free to use?

Yes, it's completely free with no signup, running entirely in your browser.

Tips & Tricks

  • ✓For degree-based trig, convert your angle to radians first (degrees × π / 180) before using sin(/cos(/tan(.
  • ✓log( computes the base-10 logarithm; use ln( for the natural logarithm (base e).
  • ✓Use M+ to accumulate a running total across several calculations, then MR to bring it back into a new expression.
  • ✓Press "C" to clear the expression (memory is kept separately — use "MC" to clear that).