How to use Number Base Converter
- Enter the number.
- Choose the base it is written in.
- Read the value in binary, octal, decimal, hexadecimal and a custom base.
About this tool
Digits above 9 use letters, so hexadecimal uses 0 to 9 and A to F and base 36 uses 0 to 9 and A to Z. Prefixes such as 0x, 0b and 0o are accepted and ignored. Conversion uses big-integer arithmetic, so there is no size limit that matters in practice.
Only whole numbers are supported.
Frequently Asked Questions
- How do I convert binary to decimal?
- Enter the binary number and choose base 2 as the input base. The decimal result appears in the table.
- Does it handle negative numbers?
- Yes, a leading minus sign is kept. Two's complement representation is not applied.
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