Sri Lanka NIC Decoder
Check NIC details, find the encoded date of birth and compare formats.
In your browserYour decoded birth date appears here
Enter an old or new NIC, then decode. Clear removes the number and results from this page.
This is NOT identity verification or proof that a card was issued. For official confirmation contact the Department for Registration of Persons.
How the NIC date code works
The first two (old) or four (new) digits encode the birth year. The next three use a fixed 366-slot calendar, reserving February 29 every year. A code above 500 indicates a female marker; day 060 is invalid in common years.
Questions
Can this verify an NIC?
No. Only the issuing department can confirm identity or issuance.
Why do some calculators differ by one day?
Some incorrectly count February as 28 days when interpreting the fixed NIC code.
Can a new NIC be converted back to an old one?
The old V/X suffix is not recoverable from a new number. We do not invent it or claim that a calculated format is an issued card.