Scientific Calculator

About Scientific Calculator

A scientific calculator handles more than basic arithmetic — trigonometry, logarithms, exponents, roots, and factorials. 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

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.

Can I use my keyboard?

Yes. Type numbers and operators directly, press Enter to evaluate, Backspace to delete, and Escape to clear.

Does the order of operations work correctly?

Yes. It follows standard precedence — parentheses, then functions and powers, then multiplication and division, then addition and subtraction — so 1 + 2 × 3 is 7.