Scientific Calculator

About this tool

A full scientific calculator right in your browser: standard arithmetic plus trigonometric functions, logarithms, powers, roots, and a memory register — for anything beyond what a basic calculator app handles.

Frequently asked questions

Are trig functions in degrees or radians?

Degrees by default, toggled with the "DEG/RAD" button — the current mode is shown above the button.

What do M+, M-, MR, and MC do?

M+ adds the current display value to memory, M- subtracts it, MR recalls the stored memory value onto the display, and MC clears memory back to zero.

How are keyboard entries handled?

You can type numbers and operators directly using your keyboard in addition to clicking the buttons — Enter calculates the result, and Escape clears the display.