Scientific Calculator
Full scientific calculator: trig, logs, powers, factorial. Free, private, runs in your browser.
A scientific calculator handles trigonometry, logarithms, powers, roots and factorials — everything a basic calculator cannot.
How to use
- Click buttons or type — the display shows your expression as you build it.
- Use DEG/RAD to switch angle units for trig functions.
- xʸ does powers: type 2, click xʸ, type 10, then = for 2¹⁰.
About this tool
Trig functions default to degrees; tap DEG to switch to radians.
Everything runs in your browser. Nothing you type is sent anywhere.
Frequently asked questions
Is this scientific calculator free?
Yes — unlimited use, no account, no ads on the tool itself.
Do degree/radian modes matter?
Yes for sin/cos/tan. 90° = π/2 radians. The button shows the active mode.
Is my input private?
Completely. All math happens in JavaScript on your device; nothing leaves your browser.
What is the max factorial?
170! — beyond that the result exceeds what JavaScript numbers can represent.
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