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Scientific Calculator

A full online scientific calculator with trigonometry (degrees or radians), logarithms, square roots, powers, factorials, parentheses, and the constants π and e. Type an expression or tap the buttons and the answer updates live — no download, no sign-up.

Beginner1 minuteUpdated 2026-07-08

Full scientific calculator with trigonometry (DEG/RAD), logarithms, roots, powers, factorials, and the constants π and e. Type an expression or tap the buttons — the result updates live. Everything runs in your browser.

How This Tool Works

Type a math expression or tap the buttons — sin, cos, tan, ln, log, √, powers (xʸ), factorial (!), π, and e are all supported. The result updates instantly, and “=” carries it forward for the next calculation.

Formula & Method

Expressions follow standard order of operations (PEMDAS): parentheses first, then exponents and roots, then multiplication and division, then addition and subtraction. Trig functions use degrees or radians depending on the DEG/RAD switch.

Example Calculation

In DEG mode, entering sin(30) gives 0.5. Typing 2^10 gives 1024, and sqrt(144) + 5! gives 132.

Please note: This calculator provides estimates for general informational purposes only. Results may not be accurate for every situation — use your judgment and consult a relevant professional when it matters.

Frequently Asked Questions

Does it use degrees or radians?+

Both — use the DEG/RAD switch at the top. It defaults to degrees, so sin(30) returns 0.5.

What functions are supported?+

Trigonometry (sin, cos, tan), natural and base-10 logs (ln, log), square root, powers (xʸ), factorial (!), parentheses, and the constants π and e.

Can I type on my keyboard?+

Yes — type directly into the display and press Enter to evaluate, or tap the on-screen buttons. Both work together.

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<a href="https://everyfix.net/tools/scientific-calculator/">Scientific Calculator</a> by <a href="https://everyfix.net">EveryFix</a>