Privacy Policy

Last Updated: November 2026 | Effective Date: November 2026

1. Introduction & Scope

At CalculatorTools.online ("we", "our", or "us"), accessible from https://calculatortools.online/, protecting the privacy and personal data of our visitors is one of our fundamental principles. This Privacy Policy document outlines the types of information collected and recorded by CalculatorTools.online, how that information is handled, and your statutory rights under applicable privacy regulations, including the EU General Data Protection Regulation (GDPR), the California Consumer Privacy Act (CCPA/CPRA), the UK Data Protection Act, and global data privacy standards.

If you have additional questions or require more information about our Privacy Policy, please contact us directly at our official email: contact@calculatortools.online.

2. Zero Calculation Data Collection & Local Client-Side Execution

We do not collect, transmit, or store your project calculation data.

All numerical calculations, input measurements, dimension selections, material tolerances, and financial pricing values you enter into any tool on CalculatorTools.online are executed entirely within your local web browser using client-side JavaScript. None of your measurements, project dimensions, or calculation results are ever transmitted to, recorded by, or retained on our web servers or any external databases. Your planning data remains strictly on your device.

3. Browser LocalStorage Usage

CalculatorTools.online utilizes browser LocalStorage solely for essential, non-tracking user interface functionality:

  • Theme Preference: We store your chosen visual theme (Light Mode vs. Dark Mode) under the key calculatortools_theme. This ensures that your preferred aesthetic is preserved as you navigate between pages without encountering page flashing (FOUC).

LocalStorage data is stored entirely on your local device, is never transmitted to our servers, and can be cleared at any time through your browser's cache settings.

4. Google AdSense & Third-Party Advertising Cookies

To maintain free, unrestricted access to all our calculation tools without subscription fees or mandatory account registration, CalculatorTools.online displays advertisements served by Google AdSense and third-party advertising networks.

Third-party vendors, including Google, use cookies, web beacons, and persistent identifiers to serve advertisements based on a user's prior visits to this website or other websites across the Internet:

CalculatorTools.online does not have access to or control over cookies that are used by third-party advertisers. You should consult the respective Privacy Policies of these third-party ad servers for more detailed information on their data handling practices and instructions about how to opt out of certain practices.

5. Web Server Log Files

CalculatorTools.online follows standard industry web hosting procedures using server log files. These files log visitors when they access website pages. The information collected by log files includes:

  • Internet Protocol (IP) addresses
  • Browser type and version
  • Internet Service Provider (ISP)
  • Date and time stamps
  • Referring and exit pages
  • Approximate number of clicks

These data points are not linked to any personally identifiable information. The purpose of this information is strictly for diagnosing technical server infrastructure errors, analyzing general traffic patterns, mitigating Distributed Denial of Service (DDoS) cyberattacks, and maintaining platform security and uptime.

6. European Privacy Rights (GDPR & UK GDPR)

If you reside in the European Economic Area (EEA) or the United Kingdom, you possess specific statutory rights under the General Data Protection Regulation regarding your personal data:

  • The Right to Access: You have the right to request copies of your personal data.
  • The Right to Rectification: You have the right to request that we correct any information you believe is inaccurate or incomplete.
  • The Right to Erasure (Right to be Forgotten): You have the right to request that we erase your personal data under certain legal conditions.
  • The Right to Restrict Processing: You have the right to request that we restrict the processing of your personal data under certain conditions.
  • The Right to Object to Processing: You have the right to object to our processing of your personal data under certain conditions.
  • The Right to Data Portability: You have the right to request that we transfer the data that we have collected to another organization, or directly to you, under certain conditions.

If you make a request, we have one month to respond to you. If you would like to exercise any of these statutory rights, please contact us at: contact@calculatortools.online.

7. California Consumer Privacy Rights (CCPA / CPRA)

Under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), California residents are afforded specific privacy rights:

  • Right to Know & Access: The right to request disclosure of the categories and specific pieces of personal information collected about you.
  • Right to Deletion: The right to request the deletion of personal information collected from you.
  • Right to Opt-Out of Data Sale or Sharing: CalculatorTools.online does not sell, rent, or trade your personal information to third parties for monetary compensation.
  • Right to Non-Discrimination: We will never discriminate against you, deny services, charge different prices, or provide a different level of quality for exercising your CCPA/CPRA rights.

To exercise any California consumer rights, please contact us at contact@calculatortools.online.

8. Children's Online Privacy Protection Act (COPPA)

Another priority is adding protection for children while using the internet. We encourage parents and guardians to observe, participate in, and/or monitor and guide their online activity.

CalculatorTools.online is a general audience calculation and educational resource. We do not knowingly collect any Personal Identifiable Information from children under the age of 13 (or under 16 in the European Union). If you think that your child provided personal information on our website, we strongly encourage you to contact us immediately, and we will do our best efforts to promptly remove such information from our records.

9. External Third-Party Links

Our platform may contain links to external websites of interest (such as building trade organizations, municipal resources, or advertising opt-out portals). Please note that we do not have control over external sites. Once you leave CalculatorTools.online, we cannot be responsible for the protection and privacy of any information you provide while visiting such sites.

10. Updates to This Privacy Policy

We may update our Privacy Policy periodically to reflect changes in legal mandates, regulatory guidelines, or technical platform enhancements. Any modifications will be posted on this page with an updated "Last Updated" date at the top of the policy. We encourage visitors to review this page periodically for any changes.

11. Privacy Contact Information

If you have any questions, concerns, or requests regarding this Privacy Policy or our data handling practices, please contact our designated privacy desk:

CalculatorTools.online
Official Email: contact@calculatortools.online
Website: https://calculatortools.online/