Finance & business

French social security number key calculator (NIR)

Calculate the control key of a French social security number (NIR) from its first 13 characters, Corsica included, or check a 15-character number, without sending anything to a server.

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<div
  class="bethemesh-widget"
  data-tool="french-social-security-number-key-calculator"
  data-lang="en"
  data-theme="auto"
  data-min-height="560"
  data-max-height="950"
  data-sandbox="allow-scripts allow-same-origin"
></div>
<script src="https://bethemesh.com/widgets/v1/bethemesh.js" async></script>
<p style="margin:6px 0 0;font:12px/1.4 system-ui,sans-serif">Free tool by <a href="https://bethemesh.com/en/tools/french-social-security-number-key-calculator">Bethemesh</a></p>

The documentation details the options, themes, sizes and the integration in each CMS. The code works in an HTML page, WordPress, Webflow, Wix, React, Vue or Astro.

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French social security number key calculator (NIR)

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