Do I need to download or install anything?

No. It's a fully online scientific calculator that runs in your browser — no download, no install, and no sign-up.

Can I use my keyboard instead of clicking?

Yes. Type numbers and operators directly, press Enter to evaluate, Backspace to delete, and Escape to clear — or tap the on-screen buttons.

How do I switch between degrees and radians?

Use the Deg/Rad toggle. It controls how the trig functions (sin, cos, tan and their inverses) interpret and return angles.

What functions does it support?

sin, cos, tan and inverses, natural log (ln) and base-10 log, square root, absolute value, exponentials, powers (^), factorial (!), percent (%), and the constants π and e — with standard order of operations.

Scientific Calculator

A full scientific calculator — trig, logs, powers, roots, and factorials, in your browser.

About Scientific Calculator

An online scientific calculator handles more than basic arithmetic — trigonometry, logarithms, exponents, roots, and factorials — with no download and no sign-up. Type or tap an expression with parentheses and functions like sin, cos, log, and √, switch between degrees and radians, and get the result instantly. It runs entirely in your browser, so nothing is sent anywhere.

Frequently asked questions

Do I need to download or install anything?: No. It's a fully online scientific calculator that runs in your browser — no download, no install, and no sign-up.
Can I use my keyboard instead of clicking?: Yes. Type numbers and operators directly, press Enter to evaluate, Backspace to delete, and Escape to clear — or tap the on-screen buttons.
How do I switch between degrees and radians?: Use the Deg/Rad toggle. It controls how the trig functions (sin, cos, tan and their inverses) interpret and return angles.
What functions does it support?: sin, cos, tan and inverses, natural log (ln) and base-10 log, square root, absolute value, exponentials, powers (^), factorial (!), percent (%), and the constants π and e — with standard order of operations.

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