We use hexadecimal because it’s a good compromise between base 10 and base 2. However, it’s incredibly easy to convert between base 2 (also called “binary”) and base 16, which is why we use it. It’s confusing to convert between base 10 and base 16, so your best bet is to use a converter like this one. It’s confusing, but “11” is actually “B” in hexadecimal likewise, “A” in hexadecimal would be “10” in decimal. 15 hours is written in base 10, but 9 minutes is written in base 60 (9 minutes is actually 9/60 th of an hour)īase 16 is the same as bases 10 and 60, except this time 16 is the key number. 15 hours is actually 9 minutes! That’s because. That’s why filling out decimal-based time cards is so difficult. Every minute of the hour is actually a fraction with 60 at the bottom. If that sounds confusing, don’t worry-you’ve known base 60 your whole life, because base 60 is how we tell time. 2 is actually 20/10.īase 60 is the same as base 10, except 60 is the key number. Base 10 is also just called “decimal.” Another way to think about base 10 is that everything is a fraction with ten at the bottom.5 is actually 5/10. 1-9 gets one digit, 10-99 get two digits, 100-999 gets three digits, and so on. In base 10, you add digits in multiples of ten. In base 10, everything is a multiple of ten. Luckily for us, you’re already familiar with both of them.īase 10 is the number system we’re most familiar with. The easiest way to understand base 16 is to understand bases 60 and 10. It’s a little confusing, but we’ll do our best to explain.īase 16 is a number system with the number 16 as the base, hence the name. The “hex” in “hex editor” is short for hexadecimal, which is a base-16 number system. What is Hexadecimal and Why Do We Use It? You can see these invisible characters (and regular characters, too) with a hex editor, where they appear as hexadecimal values. Even plaintext files contain invisible characters that denote the beginning of the file, where lines should break, the end of the file, and more. Most of the time when you open a file, you are seeing the program’s interpretation of that file’s contents. What is Hexadecimal and Why Do We Use It?Ī hex editor is a special type of editor that can open any type of file and display its contents, byte by byte.
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