Something wrong with this tool?
About Scientific Calculator Online
This tool is a full-featured scientific calculator with trigonometric functions (sin, cos, tan and inverses), logarithms (natural and base-10), exponents and roots, factorial, constants (π, e), parentheses, memory, and degree/radian switching.
Use it for engineering, physics, chemistry, statistics, advanced math homework, financial computations, and any calculation more complex than basic arithmetic. The on-screen layout follows the conventions of standard handheld scientific calculators, so users coming from a TI-30 or Casio fx-series will feel at home.
Order of operations follows PEMDAS/BODMAS rules. Parentheses can be nested freely. Memory (M+, M−, MR, MC) lets you accumulate intermediate results across calculations.
How to use this tool
How to evaluate a scientific-style expression
Type the expression
"Expression" accepts numbers, the four arithmetic operators, `^` for exponentiation, and parentheses for grouping. Length is capped at 500 characters.
Note the unary-minus quirk
Unary minus is NOT supported as a prefix — type `-5` and you'll get a parse error. Use `(0-5)` instead. The same goes for `(0-x)` inside larger expressions.
Press Run
Result is a single `result` field with the evaluated number. Standard precedence applies: parentheses first, then `^` (right-associative), then `*` and `/` (left-associative), finally `+` and `-`.
No constants or trig
There's no π, e, sin/cos/log, or factorial — keep your expression to plain arithmetic. For scientific functions, use a desktop or graphing calculator.