Calculator inputs stay on your device
Every calculation runs locally in your web browser using code shipped with the page. The numbers you type are not sent to our servers, stored in accounts, or sold — there are no accounts to store them in.
When you run a calculation, your result sheet is kept only in that browser tab’s temporary session storage so the download page can open it. Closing the tab clears it; it is never transmitted anywhere.
Anonymous calculator usage counts
After a successful explicit Calculate submission, the site may send a random one-time event identifier and the calculator identifier to a first-party WorldCalculate endpoint. It does not send your inputs, result, referrer, browser details, or a visitor identifier. Repeated delivery of the same event is ignored.
The public usage section reports client-reported aggregate successful calculations, not unique visitors. It is not authoritative server verification or a visitor count. Country rows are produced only when the site is behind a configured trusted proxy that supplies a country signal, and rows below the minimum reporting threshold are withheld. Otherwise country information is recorded as unknown and is not displayed as a country.
Event identifiers are retained only for the short retry-deduplication window; aggregate daily counts may be retained for reporting. Usage telemetry can be disabled by the site owner without changing calculator behavior.
Advertising and cookies
If the site owner enables advertising, scripts from Google AdSense and other third-party vendors load on the page. Those vendors may set cookies and collect usage data — such as pages viewed, device and browser information, and approximate location — to serve and measure ads.
You can opt out of personalized advertising at Google Ads Settings (google.com/settings/ads) and at the Network Advertising Initiative opt-out page (optout.aboutads.info). Blocking cookies may change how ads display but does not break the calculators.
Where the law requires consent before advertising cookies load (for example the EEA and UK), the site owner must obtain it with a certified consent-management platform before enabling personalized ads.
Log data
Like most websites, our hosting infrastructure records standard technical log data (such as IP address, browser type, requested pages, and timestamps) for security and reliability. We do not use this data to identify individuals and we do not sell it.
Children’s privacy
WorldCalculate is a general-audience reference site and is not directed at children under 13. We do not knowingly collect personal information from children.
Your choices and contact
You can use every calculator with cookies disabled. For privacy questions, reach us through Instagram (@hassan_alrowaie) or the WorldApps network site (worldapps.net).
Changes to this policy
If this policy changes, the updated date at the top of this page will change with it. Continued use of the site means you accept the current policy.