Calculate Binary Sum
Enter two binary bit strings to calculate their unsigned sum without signed or two’s-complement interpretation.
A QUICK WALKTHROUGH
How to use this tool
- Enter only 0 and 1 characters in each operand.
- Use up to 10,000 bits per operand.
- Calculate to see the normalized binary sum.
Unsigned bit strings
Each operand is a non-empty string containing only 0 and 1. The calculation treats the string as an unsigned binary value; it never infers a sign bit or two’s-complement representation.
Length limit
Each operand may contain up to 10,000 bits. The result may contain one additional carry bit. Inputs are validated before any calculation.
Local calculation
Validation and addition run locally in your browser. No input is uploaded or stored.
GOOD TO KNOW
Common questions
Are negative binary numbers supported?
No. Enter unsigned bit strings made only of 0 and 1. A leading 1 is an ordinary value bit, not a sign bit.
Can I use spaces or prefixes?
No. Do not include spaces, separators, a minus sign, or prefixes such as 0b.
What happens to leading zeroes?
They are accepted as value-preserving input and removed from the displayed result, except that zero is shown as 0.