• Bank card number validation

    The calculator checks a bank card number using Luhn algorithm, it also determines the card issuer according to Issuers handbook.

  • Luhn algorithm

    Calculates digit sequence checksum using Luhn algorithm (mod 10), calculates validation digit (the digit to be appended to the digit sequence to make whole sequence ckecksum equal to zero).

Request a calculator

Can't find calculators you've been looking for? Please suggest an idea for a new online calculator.