Calculator Tools
Scientific Calculator
Safe expression calculator with powers and trig: no eval().
- Private when possible
- No account required
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About this tool
Scientific Calculator evaluates math expressions with a restricted, safer evaluator instead of JavaScript eval.
How to use
- Type or tap an expression.
- Press = or read the live result.
- Use sin/cos/tan/sqrt as needed.
- Clear to start over.
Features
- Trig & roots
- Exponents
- No eval()
- Keypad + text
Common use cases
- Everyday planning
- Study checks
- Quick estimates
Supported formats
Privacy
This tool processes data in your browser. Content is not uploaded to our servers unless a feature explicitly requires a network request.
Frequently asked questions
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