Programmer Calculator

Evaluate bitwise expressions and convert between hex, decimal, octal, and binary — with a clickable bit grid, selectable bit width (8–64), and signed or unsigned two's-complement interpretation.

Hex 0000 00A5
Decimal 165
Octal 245
Binary 0000 0000 0000 0000 0000 0000 1010 0101
Bits — click to toggle
31–24
23–16
15–8
7–0