Hong Kong Identity Card check digit generator
Enter ID (without the check digit)
The ID must be 7 or 8 characters. The last 6 characters must be digits 0-9.
Note: we will not store the ID number submitted. For more on HKID cards, and our call for transparency, click here.
Known single-letter prefixes are ABCDEGHKMPRVYZ and double-letter prefixes are XA, XD, XE, XG.