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).
Related Calculators
Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.
Tip Calculator
Calculate tip and split the bill. Enter bill amount, tip percentage, and number of people.
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.
Combinations Calculator
Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).
Combinations with Replacement Calculator
Calculate the number of ways to choose r items from n with repetition allowed. Formula: C(n+r-1, r).
Even Permutations Calculator
Count how many permutations of n objects are even (expressible as an even number of swaps). For n ≥ 2, equals n!/2.