Your calculator inputs stay in your browser.

Calculator data

Values entered into the calculator are processed locally and are not submitted to RunCost Lab. The site has no accounts and does not request geolocation.

Local preferences

Your theme, selected state, recently used calculator links, and usefulness responses are stored only in your browser using localStorage. They can be removed by clearing this site's browser data. RunCost Lab does not send these values to a backend.

Hosting and measurement

Cloudflare may process basic request and security data to deliver and protect the site. Cloudflare Web Analytics measures aggregate use. RunCost Lab does not use calculator values for analytics.

Contact

Privacy questions: privacy@runcostlab.com.