Binary Addition Calculator

About this calculator

Binary addition follows the same place-value logic as decimal addition, just with only two digits: 0+0=0, 0+1=1, 1+1=10 (write 0, carry 1), and 1+1+1=11 (write 1, carry 1) when a carry is already in play. Adding two binary numbers means applying this bit by bit from right to left, propagating any carry into the next column.

This calculator adds two binary numbers and shows the sum in binary, decimal, and hexadecimal side by side, which makes it useful for computer science students learning how arithmetic actually happens at the bit level, and for programmers and network engineers double-checking manual binary math when working with bitmasks, checksums, or subnetting.