A short companion for Number Base Converter: when it is useful, what it expects, and what to check before using the result.
What it does
Convert a number between binary, octal, decimal, hexadecimal and any base up to 36, working on the digits directly so long values are not rounded by floating point.
Use the tool
Open Number Base Converter, add the input the tool asks for, run it, and check the output before using it elsewhere.
Input and output
- Input: text.
- Output: text.
- Category: Convert.
Privacy and processing
Processing happens locally in your browser. This tool does not upload the input to ilham.dev.
Questions
Why does the value not change when I paste a very long number?
Because it should not. This converter works on the digits rather than through a floating-point number, so a 64-bit value keeps every digit — which is the whole reason to use it instead of a calculator.
How are values above 9 written in base 36?
With the letters A–Z after the digits, so 35 is Z and 36 is 10.
Related guide
For broader background, see Calculators and Unit Conversion.