Privacy Policy
We believe in transparent, privacy-first computing. Read how we protect your data, handle cookies, and maintain international privacy compliance.
Effective Date: August 28, 2026
Privacy Highlights at a Glance
Client-Side Calculations
Your calculator inputs run directly in your browser. We do not store or sell your numeric calculations.
No Account Required
Access every tool freely without creating an account, sharing passwords, or providing personal profiles.
Standard Ad Transparency
We use standard Google AdSense cookies for ad delivery with full user opt-out controls.
1. Introduction & Scope
Welcome to Nerd Calculators (“we,” “our,” or “us”), accessible via https://nerdcalculators.com. We are committed to safeguarding the privacy of visitors who use our free suite of mathematical, financial, health, scientific, and educational calculators.
This Privacy Policy outlines the types of information we collect, how we process and store that information, our advertising and cookie policies, and your legal rights under international regulations including the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA/CPRA).
2. Information We Collect
We believe in data minimization. The information collected depends on how you interact with our platform:
A. Calculator & Tool Inputs (Client-Side)
When you enter figures, parameters, dates, or measurements into our calculators (such as health formulas, pregnancy dates, asphalt quantities, or physics formulas), the computations are executed locally within your web browser using JavaScript. We do not transmit, log, or store your individual calculator input data on our servers.
B. Log Files & Technical Analytics
Like standard web hosting providers, we automatically log basic technical data when visitors access pages. This non-personally identifiable information includes:
- Internet Protocol (IP) addresses (anonymized/truncated where required)
- Browser type, operating system, and screen resolution
- Date, timestamp, and referring/exit pages
- Page response times and navigation flows
C. Voluntary Communications
If you contact us via our support form, email, or tool request page, we collect your name, email address, and message contents solely to respond to your inquiry and improve our calculator offerings.
3. Cookies and Web Beacons
Nerd Calculators uses cookies (small text files placed on your device) and similar browser storage mechanisms to enhance user experience, remember selected units (e.g., metric vs. imperial), and serve relevant advertising.
Essential & Preference Cookies
Used to remember your preferences (such as unit toggles, theme choices, or calculator state) during your session.
Analytics & Performance
Helps us understand aggregated traffic patterns, popular calculators, and page performance to optimize speed.
You can manage or disable cookies through your individual browser settings. Note that disabling certain cookies may affect unit toggle persistence.
4. Advertising Partners & Google AdSense
To keep our calculators 100% free and open for public access, we partner with third-party advertising vendors, primarily Google AdSense.
Google's Use of Cookies: Google uses cookies (including the DoubleClick DART cookie) to serve ads based on prior visits to our website and other sites across the Internet.
Opt-Out Options: Visitors can opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of third-party vendor cookies for personalized ads by visiting aboutads.info.
5. GDPR & International Privacy Rights (EEA/UK)
If you are a resident of the European Economic Area (EEA) or the United Kingdom, you are entitled to specific data protection rights under the General Data Protection Regulation (GDPR):
- Right of Access: You have the right to request copies of your personal data.
- Right to Rectification: You can request correction of inaccurate or incomplete information.
- Right to Erasure: You can request that we erase your personal data under certain conditions.
- Right to Restrict & Object: You can object to or request restriction of data processing.
- Right to Data Portability: You can request transfer of data to another organization.
To exercise any of these rights, please contact us at our designated support channels. We will respond within 30 calendar days.
6. California Privacy Rights (CCPA / CPRA)
Under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), California residents have the right to know what personal data is collected, request deletion, and opt out of the sale or sharing of personal information.
7. Children's Privacy Protection (COPPA)
Protecting the privacy of children is especially important to us. Nerd Calculators is designed for general audiences and educational math use. We do not knowingly collect any personally identifiable information from children under the age of 13. If you believe your child has provided personal information on our website, please contact us immediately so we can promptly remove it.
8. Contact Us & Inquiries
If you have questions, feedback, or concerns regarding this Privacy Policy or our data handling practices, please reach out to us:
Nerd Calculators Support Team
Email: support@nerdcalculators.com