Number Base Calculator
Enter two numbers and choose their base. The calculator converts and performs arithmetic across any number system.
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Frequently Asked Questions
Why do programmers use binary?
Computers use binary (base 2) because digital circuits have two states: on (1) and off (0). All data and instructions are ultimately represented in binary.
What is hexadecimal used for in programming?
Hex is used for memory addresses, color codes (#RRGGBB), character encodings (ASCII/Unicode), and representing binary data more compactly — 2 hex digits = 1 byte.