Privacy Policy

Welcome to vitamindcalculator.net ("we," "us," or "our"). Your privacy matters to us. This Privacy Policy explains what information we collect, how we use it, and the choices you have when using our website.

By using vitamindcalculator.net, you agree to the practices described in this policy. If you do not agree, please discontinue use of the site.

Information We Collect

Location Data

Our calculator may request your approximate geographic location (latitude and longitude) to estimate UV index and sunlight availability in your area. This data is used solely to perform vitamin D calculations and is stored locally on your device only. We do not transmit, store, or retain your location data on any server.

Calculator Inputs

Information you provide through the calculator, such as skin type, age, weight, and sun exposure habits, is processed entirely within your browser. This data is never sent to our servers or shared with third parties.

Automatically Collected Information

Like most websites, we may automatically collect certain technical information when you visit, including your IP address, browser type, device type, referring URL, and pages viewed. This information is collected through cookies and analytics tools as described below.

Cookies and Tracking Technologies

We use cookies and similar tracking technologies on vitamindcalculator.net for the following purposes:

• Analytics: We use Google Analytics to understand how visitors interact with our site, including which pages are visited, how long users stay, and general demographic information. Google Analytics uses cookies to collect this data in an aggregated and anonymized form.
• Advertising: We use Google AdSense to display advertisements. AdSense may use cookies to serve ads based on your prior visits to this or other websites. See the "Third-Party Advertising" section below for more details.
• Functional cookies: We may use cookies to remember your preferences and improve your experience on the site.

You can manage or disable cookies through your browser settings. Please note that disabling cookies may affect the functionality of some features on the site.

Third-Party Advertising

We partner with Google AdSense to display advertisements on vitamindcalculator.net. Google and its advertising partners may use cookies to serve ads based on your browsing history across websites. This practice is known as interest-based or personalized advertising.

Google's use of advertising cookies enables it and its partners to serve ads based on your visits to vitamindcalculator.net and other sites on the Internet. You may opt out of personalized advertising by visiting Google Ads Settings or the Network Advertising Initiative opt-out page.

How We Use Your Information

We use the information described above to:

• Provide and improve the vitamin D calculator
• Analyze site usage and performance
• Display relevant advertisements
• Maintain and improve site security

Data Sharing

We do not sell your personal information. We may share limited data with the following categories of third parties:

• Analytics providers (Google Analytics) to help us understand site usage
• Advertising partners (Google AdSense) to display ads on the site
• Legal compliance: We may disclose information if required by law or to protect our rights

Your Rights

Depending on your jurisdiction, you may have the right to:

• Access the personal data we hold about you
• Request correction or deletion of your personal data
• Object to or restrict certain processing of your data
• Withdraw consent where processing is based on consent
• Request portability of your personal data

To exercise any of these rights, please contact us.

California Privacy Rights (CCPA)

If you are a California resident, the California Consumer Privacy Act (CCPA) grants you additional rights regarding your personal information. These include:

• The right to know what personal information we collect, use, and disclose
• The right to request deletion of your personal information
• The right to opt out of the sale of your personal information (we do not sell personal information)
• The right to non-discrimination for exercising your privacy rights

To make a request under the CCPA, please contact us.

European Privacy Rights (GDPR)

If you are located in the European Economic Area (EEA) or the United Kingdom, the General Data Protection Regulation (GDPR) provides you with specific data protection rights. Our legal bases for processing your data include legitimate interest (site analytics and improvement) and consent (personalized advertising).

In addition to the general rights listed above, you have the right to lodge a complaint with your local data protection authority if you believe your data has been processed unlawfully.

To exercise your GDPR rights, please contact us.

Children's Privacy

vitamindcalculator.net is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can take appropriate action.

Data Retention

Since calculator data is processed and stored locally on your device, we do not retain it. Analytics and advertising data collected by third-party services are retained according to those services' respective privacy policies.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. We encourage you to review this policy periodically to stay informed about how we protect your information.

Contact Us

If you have any questions or concerns about this Privacy Policy or our data practices, please visit our contact page.