PolandPESEL
Also known as: Powszechny Elektroniczny System Ewidencji Ludności · Universal Electronic System for Registration of the Population
Specification
Format
This number has no simple display mask — its structure is defined by validation rules. See the references below for details.
- Length
- 11 characters
- Checksum
- Yes
Check digits are recomputed and verified.
- Embedded data
- Yes
A valid number encodes details such as birth date, gender, or region. The validator extracts them locally in your browser.
Sample test value
85471435816This value was randomly generated to satisfy the format and check-digit rules. It is not a real ID and does not belong to any person.
Ready to check a number?
Validate a Poland PESEL now — it runs in your browser and the number never leaves your device.
Try it in the validatorValidation rules for Poland come from the open-source idnumbers library. Report a format issue on GitHub