How can i calculate binary code to decimal with Casio calculator fx-ES?

To convert binary code to decimal using a Casio fx-ES calculator, switch to the "Mode" that allows for calculations, typically "COMP" mode. Enter the binary number directly, then use the "SHIFT" key followed by the "BASE" function (often labeled as "BASE" or "nCr") to select the conversion to decimal. Finally, press the "EXE" key to display the decimal equivalent of the entered binary number.