Congratulations on choosing the HAL-42.

The latest calculator by FCC

Equiped with the most advanced functionalities:

Percent calculation: For example, to calculate 10% off £120, simply type 1 2 0 - 1 0 % =

Easy squaring: For example, to calculate the square of 234, simply type 2 3 4 × ×

Compound interests: For example, to see how much you'll have in an account with a 5% interest when you deposit £2100, simply type 1 . 0 5 × × =. Ignore the result and type 2 1 0 0 =. Pressing = again gives you the interest for each subsequent year.

And many more!

To turn it on, press the AC button.

You can interact with the calculator using the mouse or the keyboard. Hover on each key to discover its keyboard shortcut.

Design inspired by the Casio HL-4.

7-segment font by keshikan-zume.