Math Evaluator calculates arithmetic you type as an expression—a line such as 2 * (3 + 4). It supports numbers, parentheses, operators, named functions like sqrt, and constants like pi. It does not support assigning variables.
Check the order of operations
Enter 2 * (3 + 4) into Expression. Result should be 14: the parentheses make 3 + 4 happen before multiplication. Try sqrt(9) and you should get 3. The result updates as you type; Copy takes it and Download saves result.txt.
If the tool reports Unknown name, check the available function names in the hint under the input; arbitrary variables and JavaScript commands are not accepted. A malformed expression, such as a missing ), reports an error instead of a number. This is a quick calculator using floating-point numbers, not an exact decimal or financial calculator.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Calculators and Unit Conversion.
Questions you might have
- Is it safe to paste an expression in?
- Yes. The expression is parsed and evaluated as arithmetic. It is not handed to eval, so it cannot run arbitrary code.