Conversion between any bases

This calculator converts number from one numeral system to another, given both system's bases

This page exists due to the efforts of the following people:



Well, first I wrote Conversion of decimal number to other notations, then Conversion from decimal numeral system. Now I present the next step - calculator which converts from one numeral system to another.

To convert from any base to any base, you should enter 'from' number, i.e. FF, 'from' base (base of your 'from' number), i.e. 16, and 'to' base (base of your 'to' number), i.e. 10. This will convert FF from hexadecimal base to decimal base and you will get 255.

Use English alphabet letters to denote digits for numeral systems with base greater than 10. E.g., 10 = A, 11 = B, 12 = C, and so on.

Thanks to our new editor feature, namely, calculator link with parameters, I can provide you with convinient shortcuts to most often used conversions, so you do not have to enter them manually. Click one of the links below and change only your 'from' number to convert from first base to second base:

  • From 16 to 10 (from hex to dec)
  • From 10 to 16 (from dec to hex)
  • From 10 to 2 (from dec to bin)
  • From 2 to 10 (from bin to dec)
  • From 16 to 2 (from hex to bin)
  • From 2 to 16 (from bin to hex)

UPDATE: For fractional numbers conversion visit Conversion of fractional numbers between numeral systems

PLANETCALC, Conversion between two positional numeral systems

Conversion between two positional numeral systems

'From' number base
Number to be converted
'To' number base
'To' number

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Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Conversion between any bases