Hex characters must be in pairs. Enter 2 digit hex numbers with any prefix / postfix / delimiter and press the Convert button.
For Example: 77 65 6c 63 6f 6d 65 20 74 6f 20 74 6f 70 20 6f 6e 6c 69 6e 65 20
74 6f 6f 6c
Use RESET button to clear the calculator.
SWAP button will help you to switch between Hex to ASCII and ASCII to Hex.
Hex or hexadecimal is a number system with base 16. This number system is especially interesting because in decimal number system we have only 10 digits to present the numbers. As hex system has 16 digits, the first 6 letters of English alphabet used to represent extra 6 digits. So, hex digits are 0,1,2,3,4,5,6,7,8 and 9 A, B, C, D, E, F.
ASCII is an encoding system, which is abbreviation for the American Standard Code for Information Interchange. Designed earlier for old type computers and printers that uses telegraphic codes, it was designed from 128 symbols including 10 numbers, a number of punctuation marks, 26 letters of English alphabet, etc.