What This Calculator Does

The Binary Calculator covers two distinct search intents:

• Base conversion: enter one non-negative integer and its base, then rewrite it as binary (BIN), octal (OCT), decimal (DEC), and hexadecimal (HEX). For example, decimal 42 becomes binary 101010, octal 52, and hexadecimal 2A.
• Binary operations: enter two binary integers, choose +, −, ×, ÷, AND, OR, or XOR, and read the result in binary and decimal.

It is useful for learning number bases, checking bitmasks, and doing quick integer verification. It is not a signed-format, floating-point, arbitrary-precision, or full programmer-calculator replacement.

When to Use It

• You want to confirm that 42, 101010, 52, and 2A represent the same integer.
• You are learning binary addition, subtraction, multiplication, integer division, or bitwise logic.
• You need to check an AND, OR, or XOR mask.
• You want both the bit pattern and the decimal magnitude in one result.

Inputs Explained

Convert Mode

Choose the input base and enter one non-negative integer. Binary accepts 0–1, octal accepts 0–7, decimal accepts 0–9, and hexadecimal accepts 0–9 plus A–F. Hexadecimal letters are case-insensitive and are displayed in uppercase.

The input field does not parse 0b, 0o, or 0x prefixes, signs, decimal points, spaces, commas, or scientific notation. It expects a digit string for one integer, not a complete JavaScript or Python numeric literal.