Bitwise AND Calculator

Operand A

Operand B

expression

0x000000F0 AND 0x0000000F = 0x00000000

32-bit result

0000 0000 0000 0000 0000 0000 0000 0000

Unsigned decimal

Hexadecimal

0x00000000

Octal

0o00000000000

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Bitwise AND calculator

Apply AND to two integers and read the result as unsigned decimal, hexadecimal, octal, and 32-bit padded binary. Both operands are masked to 32 bits before the operation runs.

Masking bits

Bitwise AND is the standard way to isolate a group of bits. Applying AND with 0xFF forces the upper 24 bits to zero and keeps only the lowest byte. Use that pattern to extract a red, green, or blue channel from a packed colour integer, or to test whether a specific flag bit is set in a register value.

Fixed 32-bit word

This page runs AND on a 32-bit unsigned word. Input accepts decimal, hexadecimal (0xFF), binary (0b10110010), and octal (0o377) automatically. For a different word size or signed output, use the full Bitwise Calculator.

Frequently Asked Questions

How does bitwise AND work?

Bitwise AND compares two integers bit by bit. It returns 1 only if both bits are 1, and 0 otherwise. It is commonly used to mask bits or check if a specific flag is set.

Can I use bitwise AND to check if a number is even or odd?

Yes. A bitwise AND with 1 (e.g. `number & 1`) returns 1 if the number is odd and 0 if it is even, because the lowest bit is always 1 for odd numbers.

What happens if I AND a number with zero?

The result is always zero. Every bit in the output is forced to 0 regardless of the original value.