IMEI Calculator

Make sure your iPhone's unique IMEI number is correct before using our Free Basic iPhone Check and other services.
Add your IMEI number and match the last digit with the 'Check Digit' function to verify the number.



The last number of the IMEI is a check digit. The Check Digit is calculated according to Luhn formula.



The IMEI Calculator That Checks Digits

Our Free Online IMEI Calculator uses the Luhn Formula to ensure that the IMEI numbers are correct, so that you are receiving the right iPhone information on all entries.

How the IMEI Calculator Works

We validate all IMEI digits using a redundancy check based on the Luhn Formula. Simply add the IMEI number into the calculator and the Check Digit is provided to guard against any incorrect entries.