Privacy Policy

We are committed to transparency about information collection and collect only the minimum data necessary to provide and improve our services.

1.1 Information You Provide Directly

• Contact Information: When you use our contact form, we collect your name, email address, and message content to respond to your inquiry.
• Calculator Inputs: We do not store or transmit any data you enter into our calculators. All calculations run locally in your browser and are never sent to our servers.
• Privacy Rights Requests: Name, email, and request details submitted via our GDPR rights request form.
• Feedback and Suggestions: Any feedback, bug reports, or feature requests you choose to send us.

1.2 Information Collected Automatically

• Usage Data: Pages visited, calculators used, session duration, and interaction patterns — collected in aggregated, anonymised form via Google Analytics.
• Device & Technical Data: Browser type, operating system, device type, screen resolution, and language preferences.
• Log Data: IP address, access timestamps, referring URLs, and error logs retained for security and performance monitoring (auto-deleted after 90 days).
• Location Data: Approximate geographic location at country or region level only, derived from IP address — never precise GPS location.

We use cookies and similar technologies to enhance your experience, analyse usage patterns, and serve relevant advertisements that fund our free service. Full cookie details are available in our Cookie Policy.

2.1 Cookie Categories

• Essential Cookies: Required for basic website security and functionality. Cannot be disabled without breaking core features.
• Analytics Cookies: Help us understand how visitors use our site so we can improve it (Google Analytics). Require your consent.
• Advertising Cookies: Used by Google AdSense to serve relevant ads based on your interests. Require your consent.
• Functional Cookies: Remember your preferences (e.g. theme or unit settings) for a better return-visit experience. Require your consent.

2.2 Third-Party Cookies

• Google Analytics (_ga, _gid, _gat): Tracks anonymised website usage and performance — see Google Privacy Policy ↗
• Google AdSense (_gads, IDE, ANID): Serves personalised or contextual advertisements — see Google Advertising Policies ↗

We use collected information only for the purposes described below. We do not use your data for purposes that are incompatible with those stated here.

3.1 Service Provision and Improvement

• Provide, operate, and maintain our free calculator services
• Improve website performance, speed, and user experience
• Develop new calculators and features based on usage patterns
• Troubleshoot technical issues and provide customer support
• Monitor for bugs, errors, and service interruptions

3.2 Analytics and Research

• Analyse anonymised usage trends to understand which calculators are most useful
• Optimise page load times and overall site performance
• Generate aggregated statistical reports — individual data is never singled out

3.3 Communication

• Respond to your contact form submissions and support requests
• Process and fulfil GDPR rights requests and privacy inquiries
• Send service-related updates where legally permitted

3.4 Advertising (with Consent)

• Display relevant advertisements via Google AdSense to fund our free service
• Personalise ad content based on your inferred interests (only with your consent)
• Show contextual (non-personalised) ads if you have not consented to personalisation

3.5 Legal and Security

• Comply with applicable legal obligations and regulations (GDPR, CCPA, ePrivacy)
• Detect, prevent, and investigate fraud, abuse, and security threats
• Enforce our Terms of Service and other policies
• Respond to lawful requests from competent authorities

We do not sell, trade, rent, or broker your personal information to any third party. We share data only in the limited circumstances described below.

4.1 Service Providers (Data Processors)

• Google Analytics: Anonymised website usage analytics to help us improve our service
• Google AdSense: Ad delivery to fund our free service — governed by Google's Data Processing Terms
• Formspree: Processes contact form and GDPR rights request submissions securely
• Hosting & CDN Providers: Deliver our website reliably and quickly

All processors are bound by written Data Processing Agreements and may only use your data for the specific purpose we have engaged them for.

4.2 Legal Requirements

We may disclose information where legally required, including:

• Compliance with court orders, subpoenas, or valid legal process
• Protection of our rights, property, or the safety of our users or the public
• Cooperation with regulatory investigations into fraud or security incidents

4.3 Business Transfers

In the event of a merger, acquisition, or sale of all or substantially all of our assets, user data may be transferred as part of the transaction. We will notify users via a prominent notice on our website before any such transfer takes effect, and your rights under this policy will continue to apply.

CalculatorForYou.online is a free service supported by advertising revenue. We use Google AdSense to display relevant advertisements.

5.1 Google AdSense

• Google AdSense may use cookies and similar technologies to serve ads based on your interests and prior browsing behaviour
• If you have not consented to ad personalisation, AdSense will display contextual (topic-based) ads instead
• We do not control the specific ad content served by Google — ads are subject to Google's Ad Content Policies ↗
• We do not share your personal information directly with advertisers

5.2 Managing Ad Personalisation

• Visit Google Ad Settings ↗ to control personalised advertising across Google services
• Use the Digital Advertising Alliance opt-out tool ↗ for broader industry opt-out
• Withdraw consent via our cookie preference centre at any time
• Non-personalised ads will still appear if you opt out — ads fund our free service

5.3 Third-Party Links

Our website and calculator results may contain links to third-party websites. We are not responsible for the privacy practices or content of those sites. We encourage you to review the privacy policy of any external site you visit.

We implement appropriate technical and organisational measures to protect your information against unauthorised access, alteration, disclosure, or destruction.

6.1 Technical Security Measures

• TLS Encryption: All data in transit is encrypted using TLS 1.2+ across the entire site (HTTPS enforced)
• Secure Cookie Flags: Sensitive cookies use Secure and HttpOnly flags
• Access Controls: Role-based, least-privilege access to any stored data
• Network Security: Firewalls, DDoS protection, and continuous threat monitoring
• Client-Side Processing: Calculator computations run entirely in your browser — inputs are never transmitted

6.2 Data Retention

• Contact form submissions: Retained for up to 2 years for customer service continuity, then deleted
• GDPR rights request records: Retained for 3 years as required for compliance documentation
• Security log files: Automatically purged after 90 days
• Analytics data: Retained per Google Analytics settings (26 months by default)
• Calculator inputs: Never retained — processed locally in your browser only

6.3 Data Breach Response

In the unlikely event of a data breach we will:

• Investigate and contain the incident immediately upon discovery
• Notify affected users within 72 hours where required by GDPR Article 34
• Report to relevant supervisory authorities within 72 hours as required by GDPR Article 33
• Provide clear guidance on protective steps individuals can take
• Implement measures to prevent recurrence and document lessons learned

Depending on your location, you have specific rights regarding your personal information. We honour all of them.

7.1 GDPR Rights (EU / EEA Residents)

• Access (Art. 15): Request a copy of the personal data we hold about you
• Rectification (Art. 16): Have inaccurate or incomplete data corrected
• Erasure (Art. 17): Request deletion of your data ("right to be forgotten")
• Portability (Art. 20): Receive your data in a structured, machine-readable format
• Restriction (Art. 18): Limit how we process your data in certain circumstances
• Object (Art. 21): Object to processing based on legitimate interests or direct marketing
• Withdraw Consent: Withdraw any previously given consent at any time without penalty

Full details and a rights request form are available on our GDPR Compliance page.

7.2 CCPA Rights (California Residents)

• Right to Know: Know what personal information is collected, used, disclosed, or sold
• Right to Delete: Request deletion of personal information we have collected
• Right to Opt-Out: Opt out of the sale of personal information (we do not sell data)
• Right to Non-Discrimination: Equal service and price regardless of privacy choices exercised

7.3 How to Exercise Your Rights

Submit a request by:

• Email: info@calculatorforyou.online — subject line "Privacy Rights Request"
• Rights Form: GDPR Rights Request Form
• DPO: dpo@calculatorforyou.online for GDPR-specific matters

We will acknowledge your request within 2 business days and respond in full within one calendar month (GDPR) or 45 days (CCPA).

Your information may be transferred to and processed in countries other than your own. We ensure all international transfers comply with GDPR Chapter V requirements.

8.1 Transfer Mechanisms

• Standard Contractual Clauses (SCCs): EU Commission-approved model clauses used with all non-EEA processors, including Google
• Adequacy Decisions: Transfers to countries holding an EU adequacy decision (e.g. UK, Canada)
• Supplementary Measures: Encryption and pseudonymisation where required by transfer impact assessments

8.2 Key Transfer Destinations

• United States: Google Analytics and Google AdSense — covered by Google's EU SCCs and Data Processing Terms
• United Kingdom: Covered by EU adequacy decision
• Other Countries: Only where adequate safeguards are in place — no transfers to countries without appropriate protections

For more detail on international transfers and your rights in relation to them, see our GDPR Compliance page, Section 7.

We are committed to protecting the privacy of children and comply with applicable children's privacy laws including COPPA, GDPR, and the UK Children's Code.

9.1 Age Policy

• Our services are not directed to children under 13 years of age
• We do not knowingly collect personal information from children under 13
• Users aged 13–15 in the EU require parental consent for data processing under GDPR Article 8
• If we discover we have inadvertently collected personal information from a child under 13, we will delete it immediately upon discovery

9.2 Educational Use

Our calculators are widely used in educational settings. We recommend that schools, teachers, and parents review this privacy policy and our Cookie Policy to ensure compliance with applicable student privacy laws (FERPA, COPPA, etc.).

9.3 Parental Rights

If you are a parent or guardian and believe your child under 13 has provided personal information to us, please contact us immediately at info@calculatorforyou.online and we will delete it promptly.

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors.

10.1 Notification of Changes

• Material changes will be clearly posted on this page with an updated "Last Updated" date
• For significant changes affecting your rights, we may display a prominent notice on our homepage
• We will re-seek consent for any processing activities that require it following a material change

10.2 Your Continued Use

Your continued use of our services after changes to this Privacy Policy take effect constitutes your acknowledgment of the updated policy. Where consent is required, we will ask for it explicitly.

10.3 Previous Versions

Previous versions of this policy are available upon request. Contact us at info@calculatorforyou.online if you need to review an earlier version.

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us.

11.1 Supervisory Authority

If you are located in the European Union and have concerns about our data processing that we cannot resolve, you have the right to lodge a complaint with your local data protection supervisory authority. A full list of EU authorities is available via the European Data Protection Board ↗. UK residents may contact the ICO ↗.

11.2 Related Policies

This Privacy Policy should be read alongside our other policy documents for a complete picture of our practices:

• Cookie Policy — detailed information about cookies and tracking
• GDPR Compliance — full GDPR rights and request procedures
• Terms of Service — terms governing use of our calculators
• Advertising Policy — how advertising works on our site
• Disclaimer — limitations on calculator accuracy and liability