1. Introduction

World Calculator ("we," "our," or "us") is committed to protecting your privacy and personal data. This privacy policy explains how we collect, use, and protect your information when you use our free online calculator platform at worldcalculator.org (the "Service").

We comply with the General Data Protection Regulation (GDPR) (EU) 2016/679 and other applicable data protection laws.

2. Data Controller

The data controller responsible for your personal data is:

3. Calculator Data Privacy

4. Data We Collect

We collect the following categories of information:

4.1 Technical Data

• IP address
• Browser type and version
• Device type and operating system
• Pages visited and time spent on pages
• Referral source
• General geographic location (country/city level)

4.2 Cookie Data

We use cookies and similar tracking technologies to improve your experience. See Section 7 for detailed information about cookies.

5. Purpose of Processing

We process your data for the following purposes:

• Service Provision: To deliver our free calculator tools and ensure they function correctly
• Analytics: To understand how visitors use our Service and improve user experience
• Security: To detect and prevent fraud, abuse, and security incidents
• Legal Compliance: To comply with applicable laws and regulations

6. Legal Basis for Processing

Under GDPR, we process your personal data based on:

• Legitimate Interest (Article 6(1)(f)): To operate and improve our Service, perform analytics, and ensure security
• Consent (Article 6(1)(a)): For non-essential cookies (you can withdraw consent at any time)
• Legal Obligation (Article 6(1)(c)): To comply with applicable laws

7. Cookies and Tracking Technologies

We use cookies to enhance your experience. Cookies are small text files stored on your device that help us recognize you and remember your preferences.

7.1 Types of Cookies We Use

7.2 Cookie Consent

When you first visit our website, you will see a cookie consent banner at the bottom of the page. You can choose to accept or decline analytics cookies.

• If you accept: We will collect anonymized analytics data to help us improve the website and understand how visitors use our calculators.
• If you decline: Only essential cookies will be used, and we will not collect analytics data. You can still use all our calculators without any limitations.

Your preference is stored in your browser. To change your preference, click "Cookie Settings" in the footer.

7.3 Managing Cookies in Your Browser

You can also control and delete cookies through your browser settings. However, disabling cookies may affect the functionality of our Service.

8. Third-Party Services

We share data with the following third-party service providers:

9. Data Retention

We retain your data for the following periods:

• Analytics data: Up to 24 months
• Server logs: Up to 90 days
• Cookie data: Varies by cookie type (see cookie settings for specifics)

Calculator input data is not retained as it never leaves your browser.

10. Your Rights Under GDPR

You have the following rights regarding your personal data:

• Right to Access: Request a copy of the personal data we hold about you
• Right to Rectification: Request correction of inaccurate or incomplete data
• Right to Erasure ("Right to be Forgotten"): Request deletion of your personal data
• Right to Restriction: Request limitation of processing your data
• Right to Data Portability: Receive your data in a structured, machine-readable format
• Right to Object: Object to processing based on legitimate interests
• Right to Withdraw Consent: Withdraw your consent for cookie-based processing at any time

To exercise any of these rights, please contact us at contact@worldcalculator.org. We will respond within one month.

If you are not satisfied with our response, you have the right to lodge a complaint with your local data protection authority.

11. International Data Transfers

Our Service is hosted within the European Union. However, some of our third-party service providers (such as Vercel) may process data outside the EU/EEA.

When data is transferred outside the EU/EEA, we ensure appropriate safeguards are in place, including:

• Standard Contractual Clauses approved by the European Commission
• Adequacy decisions by the European Commission

12. Data Security

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction, including:

• HTTPS encryption for all data transmission
• Secure hosting infrastructure with regular security updates
• Access controls and authentication mechanisms
• Regular security audits and monitoring

However, no method of transmission over the internet is 100% secure. While we strive to protect your data, we cannot guarantee absolute security.

13. Children's Privacy

Our Service is not directed to children under the age of 16. We do not knowingly collect personal data from children under 16. If you believe we have collected data from a child under 16, please contact us immediately.

14. Changes to This Privacy Policy

We may update this privacy policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons. We will notify you of any material changes by posting the updated policy on this page with a new "Last updated" date.

We encourage you to review this privacy policy periodically to stay informed about how we protect your data.

15. Contact Us

If you have any questions, concerns, or requests regarding this privacy policy or our data practices, please contact us:

1. Acceptance of Terms

By accessing and using World Calculator ("the Service"), you accept and agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use our Service.

2. Description of Service

World Calculator provides free online calculator tools for finance, health, math, and other purposes. The Service is provided "as is" and is intended for informational and educational purposes only.

3. Acceptable Use

You agree to use the Service only for lawful purposes and in accordance with these Terms. You agree not to:

• Use the Service in any way that violates applicable laws or regulations
• Attempt to interfere with or disrupt the Service or its servers
• Use automated systems or software to extract data from the Service
• Impersonate or attempt to impersonate World Calculator or its representatives

4. Disclaimer of Warranties

We make no warranties or representations about the accuracy, reliability, or completeness of the calculations. While we strive for accuracy, errors may occur. Use the results at your own discretion.

5. Limitation of Liability

To the fullest extent permitted by law, World Calculator and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of profits, data, or other intangible losses, resulting from:

• Your use or inability to use the Service
• Any errors or inaccuracies in the calculations
• Unauthorized access to or alteration of your data
• Any third-party conduct on the Service

6. Intellectual Property

The Service and its original content, features, and functionality are owned by World Calculator and are protected by international copyright, trademark, and other intellectual property laws.

7. Modifications to Terms

We reserve the right to modify these Terms at any time. We will notify users of any material changes by updating the "Last updated" date at the top of this page. Your continued use of the Service after any changes constitutes acceptance of the new Terms.

8. Governing Law

These Terms shall be governed by and construed in accordance with the laws of Estonia, without regard to its conflict of law provisions. Any disputes arising from these Terms or the Service shall be subject to the exclusive jurisdiction of the courts of Estonia.

9. Contact Information

If you have any questions about these Terms of Service, please contact us at contact@worldcalculator.org.