What are the different NID lengths?

Bangladesh uses three forms — a 10-digit Smart NID card number, the old 13-digit NID, and a 17-digit NID that prefixes the 13-digit number with a 4-digit birth year. This tool accepts all three.

How many digits is a Bangladesh NID number?

It can be 10, 13 or 17 digits. The 10-digit Smart NID is the current card number; 13 and 17 digits are older formats, where the 17-digit version starts with the 4-digit birth year followed by the 13-digit number.

Does the NID have a check digit?

No. The Bangladesh NID has no public checksum, so this tool cannot verify a single mistyped digit. It validates the accepted lengths and, on the 17-digit form, that the embedded birth year falls within 1900 and the current year.

What is the RMO code in the NID?

RMO is the Rural/Municipality/Other classification embedded as digit 3 of the 13-digit core. For example 1 = City Corporation, 4 = Upazila and 6 = Rural/Union. The tool reads and names this code for you.

Can this tool tell me which district an NID belongs to?

It shows the 2-digit division/district code embedded in the number but does not map it to a named district. It decodes the documented structure rather than looking anything up in a register.

Can I use this to confirm an NID is real?

No. The tool only checks the structure. A correctly structured number can still be fictitious — only the Bangladesh Election Commission can confirm a real NID.

Is my NID sent anywhere?

No. All processing happens locally in your browser and the number never leaves your device.

Bangladesh NID Validator

Bangladesh NID validator

Validate a Bangladesh National ID (NID), issued by the Bangladesh Election Commission, in any of its three forms — the 10-digit Smart NID card number, the old 13-digit NID, or the 17-digit NID that begins with a 4-digit birth year. Useful for HR, KYC and form-validation checks where you need to confirm the shape of a number before submitting it.

How it works

The tool strips non-digits and inspects the length. A valid NID must be 10, 13 or 17 digits. For the 17-digit form it splits off the leading 4 digits as the birth year and checks it sits between 1900 and the current year. The remaining 13-digit core is structured: digits 1–2 are the division/district code, digit 3 is the RMO (Rural/Municipality/Other) type, and the tail is a serial. Because the NID has no public checksum, the tool validates this deterministic structure rather than a check digit — it never queries any government database.

Example

Enter 199082123456789 is too short, but a 17-digit number such as 19908212345678901:

Birth year (embedded): 1990
13-digit core: 8212345678901
Division/district code: 82
RMO type: 1 — City Corporation

Length	Form	Embeds birth year?
10	Smart NID	No
13	Old NID	No
17	Old NID + year	Yes (first 4 digits)

All processing happens locally in your browser — your NID never leaves your device.