Scientific Calculator
Evaluate scientific expressions with sin, cos, log, sqrt, powers and parentheses - safely parsed, never eval().
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How to use the Scientific Calculator
- Open the Scientific Calculator.
- Enter your input in the fields provided - results update as you type where practical.
- Use Copy or Download to take the result with you, or Reset to start again.
How it works
Uses a recursive-descent parser built in-house. Functions: sin cos tan asin acos atan log ln sqrt abs, constants pi and e, operators + - * / ^ % and parentheses.
Privacy note: this tool runs locally in your browser. Your input is not uploaded, stored in analytics, or placed in the page URL.
Frequently asked questions
Is the Scientific Calculator free?
Yes. It is completely free, needs no account, and runs in your browser.
Is my data uploaded when I use the Scientific Calculator?
No. Processing happens locally on your device. We do not upload your inputs, files or generated passwords.
How does the Scientific Calculator work?
Uses a recursive-descent parser built in-house. Functions: sin cos tan asin acos atan log ln sqrt abs, constants pi and e, operators + - * / ^ % and parentheses.
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