CNP Validator Romania

Validate Romanian CNPs quickly with deterministic checksum, date validation, and field extraction for data quality and identity verification.

Tool coming soon!

We're working hard to get this tool ready for you.

Request Feature / Support

1,640+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

AI Web Tool Generator

Build Your Own Custom Web Calculator in Seconds

Type what tool or calculator you need below. Our AI will build it instantly for your site.

About This Tool

The CNP Validator Romania analyzes a 13-digit personal numeric code to confirm authenticity and extract demographic details. It checks length and digit-only input, computes the checksum with a fixed weight scheme, validates the embedded birth date, and confirms county codes. The tool provides a structured output including birth_date, sex, county_code, serial, and a validity flag. It is designed for developers integrating client-side or server-side validation into forms, data-cleaning pipelines, and identity verification workflows. The logic is deterministic and based on the official CNP specification, enabling reproducible checks across systems. The primary value lies in early error detection, reduced manual verification, and higher data quality when collecting identifiers in HR, compliance, or onboarding processes.

Save your calculation history with a free account

How to Use

Provide inputs: enter the 13-digit CNP string without spaces or with standard separators.
Normalize: strip spaces or dashes to obtain a clean 13-digit sequence.
Run validation: compute the checksum, validate the date, and verify the county code.
Review outputs: check validity, birth_date, sex, county_code, and serial fields for consistency.
Use results: integrate into data quality checks, onboarding forms, or compliance audits.

Frequently Asked Questions

Find Quick Answers

What is a CNP Romania?

A CNP is a 13-digit numeric identifier assigned to Romanian individuals. It encodes sex, birth date, birthplace region, a serial number, and a checksum used to detect transcription errors. It is used in administration and identity verification workflows.

How does the checksum work?

The checksum is computed from the first 12 digits using fixed weights and modulo 11. The 13th digit equals the remainder, or 1 if the remainder is 10. This detects common entry errors and ensures numeric integrity.

What happens with century inference?

The first digit encodes birth category and approximate century. Common mappings associate 1-2 with 1900s, 3-4 with 1800s, 5-6 with 2000s. Some first-digit values indicate special cases; the validator reports the inferred century where possible.

Can inputs include spaces or dashes?

Yes. The tool normalizes inputs by removing non-digit characters before validation, ensuring accurate checksum and date parsing without requiring strict formatting.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

Related Tools

Other useful calculators and utilities you might like

Road Distance Calculator

Calculate the driving distance and travel time between two addresses with our free online road dista...

Spotify to MP3 Converter

Convert Spotify tracks and playlists to MP3 format instantly with our free online converter.

Age Calculator

Calculate your exact age in years, months, and days from any birth date to any target date.

Uber Price Calculator

Estimate your Uber ride fare based on distance, duration, surge multiplier, base fare, and vehicle t...

Your Feedback Matters

Help Us to Improve