Base 36 to decimal converter
Paste a number in base 36 to get its decimal value, worked out place by place. Handy for exercises and for checking encoded values.
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How to use it
- Enter number in base 36.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Value = sum of (digit × 36^position), with position 0 at the far right. Example: HELLO = 17×36^4 + 14×36^3 + 21×36^2 + 21×36^1 + 24×36^0 = 29234652.
Example
Inputs: Number in base 36 = HELLO. Result: Decimal value: 29234652; With thousands separators: 29,234,652; Decimal digits: 8.
HELLO
29234652
Limits and caveats
- Whole numbers only, up to 1000 digits; a radix point is not accepted here.
- The place value table appears for inputs up to 60 digits.
Questions about this tool
How do I convert base 36 to decimal by hand?
Multiply each digit by 36 raised to its position, starting at position 0 on the right, then add the results. For example HELLO in base 36 equals 29234652.
Are lowercase letters accepted?
Yes. Base 36 is case-insensitive, so hello reads as HELLO and equals 29234652.
Which symbols are allowed in base 36?
The digits 0 to 9 and the letters A to Z; spaces are ignored. Any other symbol triggers a message that names it.