Effective Date: April 6, 2026
At How to Calculate, we are committed to protecting your privacy while providing a useful, ad-supported educational experience. This Privacy Policy explains how we collect, use, share, and protect your information.
It also details our compliance with the General Data Protection Regulation (GDPR) for users in the European Economic Area (EEA) and meets Google AdSense requirements for transparency around advertising and cookies.
We use Google AdSense (and potentially other third-party ad networks) to display advertisements on our website. This policy discloses how these services collect and use data, as required by Google.
Information We Collect
We collect only the information necessary to operate our site, deliver content, improve user experience, and serve relevant ads.
- Personal Information: When you contact us via forms, subscribe to newsletters, or interact with the site, we may collect your name, email address, and any other details you voluntarily provide.
- Technical & Usage Information: We automatically collect data such as your IP address, browser type, device type, operating system, pages visited, time spent on the site, and referring URLs.
- Cookies & Tracking Technologies: We use cookies, web beacons, and similar technologies for functionality, analytics, and advertising.
Cookies and Tracking Technologies
Our website uses first-party and third-party cookies to enhance functionality, remember your preferences, analyze traffic, and serve advertisements.
You can manage or disable cookies through your browser settings. However, disabling cookies may affect site functionality (e.g., some calculators or tools may not work properly).
Advertising
We display advertisements through Google AdSense and may work with other third-party ad networks. These services help fund our free educational content.
As required by Google AdSense:
- Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to your website or other websites.
- Google’s use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our sites and/or other sites on the Internet.
- Users may opt out of personalized advertising by visiting Google Ads Settings.
Alternatively, you can opt out of some third-party vendors’ use of cookies for personalized advertising by visiting www.aboutads.info/choices.
For more information about Google’s advertising practices, please review Google’s Privacy Policy and Advertising Technologies.
We do not sell your personal data. We may share anonymized or aggregated data with ad providers solely to enable ad delivery and measurement.
How We Use Your Information
We use the collected information to:
- Respond to your questions, feedback, or support requests
- Provide, maintain, and improve our calculators, content, and services
- Analyze site performance and user behavior
- Send newsletters or updates (only if you have explicitly opted in)
- Serve relevant advertisements (including personalized ads via Google AdSense)
- Maintain the security and integrity of our website
- Comply with legal obligations
Legal Basis for Processing (GDPR – EEA Users)
We process personal data based on:
- Consent: When you voluntarily submit information or opt in to communications or non-essential cookies.
- Legitimate Interests: To improve our site, analyze usage, serve relevant ads, and prevent fraud or misuse.
- Legal Obligations: When required by law to retain or disclose data.
Where required by law (including GDPR and ePrivacy rules), we obtain your consent for certain cookies and advertising technologies via a cookie consent banner.
Sharing of Information
We never sell or rent your personal data. We share information only in these limited cases:
- Service Providers: Trusted partners (e.g., hosting providers, analytics tools, and advertising networks like Google) who process data on our behalf under strict confidentiality agreements.
- Legal Authorities: When required by law, court order, or to protect our rights, safety, or the public.
- Ad Networks: Google and other ad providers receive technical data (such as cookies and device information) to deliver and measure ads.
Data Retention
We retain personal data only as long as necessary for the purposes outlined above or as required by law. When no longer needed, we securely delete or anonymize it.
How We Protect Your Data
We implement reasonable administrative, technical, and physical security measures to protect your information. However, no internet transmission or storage method is 100% secure. We cannot guarantee absolute security.
Your Rights (GDPR – EEA Users)
If you are in the EEA, you have the following rights regarding your personal data:
- Access, rectification, or erasure (“Right to be Forgotten”)
- Restriction of processing
- Data portability
- Objection to processing (including for legitimate interests or direct marketing)
- Withdrawal of consent at any time
To exercise these rights, email us at contact@howto-calculate.com. We will respond within 30 days.
You can also manage your advertising preferences directly through Google Ads Settings (linked above).
Children’s Privacy
Our website is not directed at children under 13 (or the applicable age of consent in your country). We do not knowingly collect personal data from children. If we discover we have done so, we will promptly delete it.
International Data Transfers
If data is transferred outside the EEA, we use appropriate safeguards such as Standard Contractual Clauses (SCCs) or other mechanisms approved by the European Commission to ensure adequate protection.
Third-Party Links
Our site may contain links to external websites. We are not responsible for their privacy practices or content.
Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted here with a new “Effective Date.” We encourage you to review it periodically.
Contact Us
If you have any questions, concerns, or requests about this Privacy Policy, your data, or your rights, please contact us at:
Email: contact@howto-calculate.com