Privacy & Local Calculations

Calculator inputs

Calculations run in your browser. This application does not send calculator inputs to a server or store them in an account. Refreshing a page resets its form unless you explicitly load a saved scenario. Avoid entering information you do not want visible to someone using your device.

Saved tools

Favourite calculator IDs are stored in your browser’s localStorage. You can remove individual saved tools or clear this site’s browser storage. Saved-tool IDs do not include form data. Separately, choosing Save scenario stores that calculator’s inputs and your scenario name in an IndexedDB database in your browser on this device, including any birth or financial details you entered. Up to ten scenarios per tool are kept until you delete them or clear site storage. Open tabs on this device share saved scenarios. Records are not synced between devices; use Download backup and Restore backup to move them. Avoid saving sensitive inputs on a shared device.

Hosting and connections

The hosting provider receives ordinary request information needed to serve pages and may apply its own access and logging policies. This website includes Google AdSense advertising code. Google and its partners may receive request and device information when advertising services load. No separate analytics or affiliate tracking has been added. Typography uses local system fonts. Opening an external source link takes you to that provider’s privacy practices.

Advertising and cookies

Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google’s advertising cookies enable Google and its partners to serve ads based on those visits. Advertising may be personalised where permitted and supported by your privacy choices. Calculator inputs are not intentionally sent to Google by our calculator code.

You can manage personalised advertising in Google My Ad Center or use the industry choices at aboutads.info. Read how Google uses information from sites using its services and Google’s advertising technology information. Other vendors or ad networks serving ads may also use cookies under their own policies. Where a consent message is displayed, use its controls to make or change your choices. Browser settings can remove or restrict cookies; doing so does not necessarily prevent all advertising.

Downloads and printing

CSV downloads contain your inputs and results. Print / save PDF creates a report through your browser. You control where these files are saved and who can see them. Deleting browser storage does not delete downloaded files.

Copying results

The Copy result button writes the displayed result to your clipboard only when you press it. Be mindful of where you paste it.