Privacy Policy

At 1CalcHub, we respect your privacy. Our online calculators are engineered to execute calculations locally within your web browser using client-side JavaScript. This means your private numerical inputs—such as loan amounts, salary numbers, weight, or health metrics—are processed on your own device and are never transmitted to, stored on, or harvested by our backend servers.

You do not need to create an account, register, or provide personally identifiable information (PII) to access or use any calculator on 1CalcHub.

When you visit 1CalcHub, our servers and third-party analytics providers may automatically collect non-personal, technical data to maintain site reliability, diagnose errors, and understand aggregated traffic patterns. This data includes:

• Browser type, language, and version
• Operating system and device category (desktop, mobile, tablet)
• Referring URL, entrance pages, and exit pages
• Approximate geographical location (country or city level, without precise GPS)
• Date, timestamp, and duration of visits

If Google AdSense advertising is enabled on 1CalcHub, Google and its advertising partners may use cookies or similar technologies to serve and measure ads, including personalized ads where permitted. Ad-related cookies are not used by this site unless advertising is enabled. See Google's current policies and your browser or consent controls for available choices.

Advertising cookies, if ads are enabled:Google's advertising cookies may enable Google and its partners to serve personalized ads based on visits to this or other sites, subject to applicable consent and user settings.

How to opt out of personalized advertising:

• You can opt out of personalized Google advertising by visiting Google Ads Settings.
• Alternatively, you can opt out of third-party vendors' use of cookies for personalized advertising by visiting www.aboutads.info or the Network Advertising Initiative at optout.networkadvertising.org.

We use Google Analytics to measure aggregate site performance, page load speeds, and popular search categories. Google Analytics utilizes cookies to collect anonymized IP addresses and browsing behavior. We do not correlate analytics data with any identifiable personal profiles.

You can prevent your data from being used by Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

If you voluntarily reach out to us via our contact form or direct email (contact@1calchub.com), we receive your name, email address, and the contents of your message. We use this information solely to answer your questions, resolve technical bug reports, or discuss partnerships. We never sell, rent, or lease your contact information to third parties.

Depending on your location, you have legal rights regarding your personal data:

• European Union / UK (GDPR): You have the right to request access to, correction of, or erasure of your personal data, and the right to object to or restrict processing. Because we do not store calculator data or maintain user accounts, our processing is limited to basic server telemetry and opted-in email correspondence.
• California Consumers (CCPA/CPRA): You have the right to know what personal information is collected, request deletion, and opt out of the sale or sharing of personal information. 1CalcHub does not sell your personal information.

To exercise any of these rights, please contact our privacy compliance desk at contact@1calchub.com.

1CalcHub is a general-audience educational website and does not knowingly collect or solicit personal information from children under the age of 13. If you believe a child under 13 has provided personal information to us, please notify us immediately so we can promptly delete it.

Our calculators and articles may contain links to external authoritative sources (such as the Reserve Bank of India, IRS, or World Health Organization). We are not responsible for the privacy practices or content of third-party websites.

We may update this Privacy Policy periodically to reflect changes in our legal obligations, vendor integrations, or technological practices. Any modifications will be posted directly on this page with an updated revision date.

For questions regarding this policy, please email: contact@1calchub.com