Binary Calculator

Value A

Prefixes supported: 0b (binary), 0x (hex). Underscores and spaces are ignored.

Value B (optional for conversions; required for arithmetic)

Needed for Add/Subtract/Multiply/Divide.

Preferred input base (used if no prefix found)

Operation

Drag & drop a .txt here or .

Format examples: 1011 + 1110, 0xFF * 0x2, 45

Binary Calculator – Quick Cheat Sheet

Accepted inputs: Binary (0b1011 or just 1011), Decimal (45), Hex (0x2D or 2D). Underscores/spaces are ignored.
Preferred base is used only when no prefix is provided; prefixes 0b/0x override it.
Convert shows A (and B if provided) in BIN/DEC/HEX.
Arithmetic: Add/Subtract/Multiply use integer math. Divide returns integer quotient; remainder is shown separately.
Bit length is approximate (⌊log₂(|n|)⌋+1) and shown for quick reference.
Examples above can be clicked to auto-fill and run.
Notes: Extremely large integers may exceed platform limits; if a value won’t parse, reduce its size.

Parsing tips & edge cases

Negative numbers are supported (e.g., -0b1010, -42, -0x2A).
Whitespace/underscores are removed: 1111 0000 → 11110000, 0b1111_0000 → 11110000.
For divide, the quotient is shown as the main result and the remainder is displayed separately.