Last updated: 10 October 2026.
Calculator entries
The calculator works out results in your browser and does not store the numbers you enter. Reloading clears the calculation. A CSV export is created on your device; you choose where it goes.
Google AdSense and advertising providers
This website uses Google AdSense. When you visit, your browser may send Google the page address, IP address and browser information. Google may use cookies or similar identifiers to deliver and measure ads and prevent fraud. Other advertising providers listed in the consent message may also process information for the purposes shown there. Read their privacy notices for details.
Google advertising services may send requests even when you do not see an ad. This website does not use Google Analytics or a separate web analytics service.
Consent choices
The consent message on this website lets you choose Consent, Do not consent or Manage options where shown. Available choices depend on location and earlier selections. Google says a consent settings link appears at the bottom of approved sites using its advertising services. Use that link here when available to change your choice.
Read How Google uses information from sites or apps that use its services, Google Privacy Policy, How AdSense uses cookies and Google Ads Settings. Google also provides details about the advertising providers and their purposes in the consent message.
Serving this website
Requesting a web page shares normal connection information, such as an IP address and browser details, with the hosting provider. Provider logs and security processing are separate from calculator entries. This website is served by Cloudflare Pages. Cloudflare processes request and connection information to deliver and protect the service. See the Cloudflare privacy policy.
External links and contact
Links to external platforms open only when you choose them. The linked platform then processes your visit under its own terms and privacy notice. If you contact the maintainer through Upwork, your message is processed by Upwork; there is no contact form on this site. Please send synthetic examples, not confidential client records.
Questions
Use the contact route for privacy questions or corrections.