Privacy

Calculator inputs

Calculations run in your browser. Measurement inputs are not submitted to the server, and this site does not keep a calculation history.

Preferences

Your unit and currency choices are saved in localStorage on your device. Reset saved preferences clears unit and currency choices. The directory also keeps local counts for a short allowlist of requested tools with no results; it does not store arbitrary search text or send these counts to the server. Clearing browser site data removes those local counts. Copy and print use your device.

Submitted reports

If you submit the report form, the page URL, chosen topic and message are stored privately for the site owner. No email or account is required. Do not include personal or confidential information. To prevent repeated automated submissions, a short-lived keyed hash of the requesting IP address is retained for ten minutes. Reports remain until the site owner deletes them.

Site operation

This site contains no analytics or advertising scripts. Hosting may keep ordinary access logs under the hosting provider’s settings. WordPress administrators use authentication cookies when signing in.