64-Bit BigInt Systems Engine
Calculator
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Systems Engineering

Online Programmer Calculator

Engineered for computer scientists, embedded developers, and network engineers. Live base conversions and bitwise manipulation.

🔢 Multi-Radix Synchronization

Seamlessly view your numbers across HEX, DEC, OCT, and BIN simultaneously. Click any radix to switch active input focus.

⚙️ Bitwise Logic & Shifts

Execute AND, OR, XOR, NOT, NAND, NOR, arithmetic left shifts (Lsh), and logical right shifts (Rsh) with instant feedback.

📏 Word Size Constraints

Toggle between 64-bit QWORD, 32-bit DWORD, 16-bit WORD, and 8-bit BYTE. Digits invalid for the active base are locked out automatically.