About Binary Calculator
Binary is the base-2 number system, written with only the digits 0 and 1, where each place is worth twice the one to its right. This calculator reads two binary integers of any length, applies the chosen operation with exact big-integer arithmetic, and shows the result in binary, decimal, hexadecimal, and octal. Division is integer division that discards the remainder. A leading minus sign marks a negative number; fractions are not supported.
How to use Binary Calculator
- Fill in "First number", "Operation" and "Second number".
- The result appears below and updates as you type.
- Copy the result with the copy button, or download it as a file where that is offered.
Questions about Binary Calculator
How does binary addition work?
Add column by column from the right, as in decimal, but carry whenever a column reaches 2. 1 + 1 is 10 in binary: write 0 and carry 1. So 1011 + 110 = 10001, which is 11 + 6 = 17.
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