QuickFreeTools

Online Binary Calculator

Add or subtract binary numbers, or convert between binary and decimal.

Frequently Asked Questions

How do I add binary numbers?
Enter two binary numbers (0s and 1s only). The tool shows the sum in binary and decimal.
Can I convert decimal to binary?
Yes. Enter a decimal number to get its binary representation, or enter binary to get decimal.
Negative results?
For binary subtract, if the result is negative only the decimal value is shown (no two's complement).

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