Wiegand Calculator - 26-bit format

 Binary Data
P     F F F F   F F F F   C C C C   C C C C   C C C C   C C C C     P

Even Parity Field


Odd Parity Field

                   Facility Code                                              Card Code 



                    Raw Data - Decimal:     Hex:


This calculator allows you to manipulate and decode the fields of a standard 26-bit wiegand access card
number.  You can enter data into any of the fields and the calculator will translate into all other fields.  In addition this calculator will generate parity bits (or check the parity if you entered raw card data).

Calculator Fields

   P - Parity Bits - Even parity is generated/checked over the leftmost 13 bits.
                              Odd parity
is generated/checked over the rightmost 13 bits.
                             These fields will turn RED if raw data is entered with incorrect parity.  

   F - Facility Code - These 8 bits represent the card's facility code.

   C - Card Code - These 16 bits represent the card code.