Unit converter
Convert length, mass, area, volume, temperature, speed, data size and time, with editable values on both sides.
Number base converter
Convert integers exactly between bases 2–36, including negative and very large values, with common base results shown together.
About this tool
Convert integers exactly between bases 2–36, including negative and very large values, with common base results shown together.
How to use
Select the input and output bases, then enter an integer. Swap bases to continue converting. Binary, octal and hexadecimal inputs accept matching 0b, 0o and 0x prefixes.
Big-integer arithmetic preserves values such as 9007199254740993 without floating-point rounding. Fractions and scientific notation are not supported. Input allows up to 4,096 digits, with either letter case.
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