Method
The calculator tokenizes and evaluates supported arithmetic operators, parentheses, powers, square roots, and percentages safely.
Numbers / browser tool
Scientific Calculator
Safe expression parser — no eval(). Supports +, −, ×, ÷, ^, sqrt(), and %.
Your inputs stay on your device
Scientific calculator
live resultResult
sqrt(144) + 5^2 = 37
Supported operations: + − × ÷ parentheses ^ (power) sqrt() % (percentage). Runs entirely in your browser — no external APIs.
Useful context
How it works
Use the calculator first, then scan the details below when you want more context about the inputs, result, or assumptions.
How to use it
Enter an expression using the displayed syntax, review the result, and adjust the expression as needed.
Understand the result
The result is the numeric value of the supported expression; invalid syntax receives a clear error.
Example
sqrt(81) + 2^3 evaluates to 17.
Notes
Expressions are processed by a safe parser rather than JavaScript eval. Unsupported functions are not accepted.
Keep moving