Number Systems Toolkit.
Calculate with multiple integers, convert between number bases and experiment with individual bits. Each workspace operates independently.
Multi-value calculator
Work in one number base with up to ten values. Change the operation to use arithmetic, logic or shifts.
Values
3 / 10All values use the selected number base. Arithmetic wraps to the chosen word size; overflow is displayed.
Result
——————All integer calculations use exact BigInt arithmetic. Arithmetic overflow and out-of-range values are reported, with results represented as two's complement bit patterns where applicable.
Number base converter
Convert an integer from any base 2–36 to another, with no 8/16/32/64-bit truncation.
Supported digits: 0–9, A–Z for bases above 10. An optional leading minus sign is allowed. Separators (spaces or underscores) are ignored.
Quick representations
Exact integer————Interactive bit inspector
Toggle individual bits and instantly discover their decimal, binary and hexadecimal representations. Completely independent from the calculator.
—The highest bit becomes the sign bit in signed mode. Changing this setting changes how the same bits are interpreted; it does not change the bits.