Binary Addition Calculator

Your details

Enter a binary number using only the digits 0 and 1 (no spaces or prefixes).
Enter a second binary number using only the digits 0 and 1.
Forces the result to display with a fixed number of bits. Overflow is flagged when the result does not fit.
Binary sum
11000

The result of adding the two binary numbers

Decimal value24
Hexadecimal value18
First number (decimal)13
Second number (decimal)11
First number13
Second number11
Sum24

1101 + 1011 = 11000 (decimal 24)

  • 1101 in decimal is 13, and 1011 in decimal is 11.
  • Their decimal sum is 13 + 11 = 24, which in binary is 11000.
  • The result is 5 bits long and equals 0x18 in hexadecimal.

Next stepUse the carry table below to trace each column addition from right to left, then verify by converting both answers to decimal.

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