🧮Scientific Calculator
Trig, logs, powers & roots.
About the Scientific Calculator
A free online scientific calculator with trigonometry (sin, cos, tan), logarithms, square roots, powers, π and e. Great for students and professionals. Works in your browser.
How to use the Scientific Calculator
- 1Enter your numbers into the Scientific Calculator fields above.
- 2Adjust the rate, period, units or other options to match your situation.
- 3Your result is calculated instantly as you type — there's no submit button.
- 4Nothing is stored or uploaded; every calculation runs privately in your browser.
Why use this tool?
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Private by design
The Scientific Calculator runs entirely in your browser — nothing you enter is uploaded to a server.
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Free, no signup
Use it as much as you like. There's no account, no paywall and no watermark.
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Fast & instant
Results appear the moment you type or click — no waiting, no page reloads.
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Works anywhere
Any device or browser, even offline once the page has loaded.
Frequently asked questions
Does it support trigonometry and logs?＋
Yes — sin, cos, tan, log, ln, square roots, powers, π and e. Note that trigonometric functions use radians.