Privacy Policy

1. About CalcNest and this policy

CalcNest operates the website calcnest.org, providing free online calculators, educational information and custom calculator development services.

This Privacy Policy explains how information may be collected, used, shared and stored when you visit CalcNest, use our calculators, interact with optional AI features or contact us.

Most free calculators can be used without creating an account or providing your name or email address. However, some optional features process information beyond your browser, as explained below.

2. Information we handle

The information involved depends on which features you choose to use.

Hosting and security systems may also process technical information, such as IP addresses, request details and diagnostic logs, to operate and protect the website.

3. How calculator inputs are processed

Many CalcNest calculators perform their core mathematical calculations directly in your browser. For these calculations, the values you enter generally do not need to be transmitted to CalcNest's server.

However, not every CalcNest feature operates entirely within your browser. Certain features may send relevant information to our server or external providers to supply optional AI explanations, retrieve external data, analyse documents or perform other requested actions.

Calculator results may also be generated using external reference data, such as tax information, public holidays, fuel information or other location-dependent data sources.

4. AI features and document uploads

Some CalcNest calculators offer optional AI-powered explanations, personalised analysis, follow-up questions or document-based inputs.

AI explanations and questions

When you choose to use an AI feature, CalcNest may send your question, relevant calculator inputs, calculated results and conversation context through a server-side service to an external AI provider, including Anthropic where integrated.

This information is used to generate the requested explanation or answer. The AI service may process submitted data under its own contractual and technical arrangements.

Uploaded documents

If a calculator offers document upload or information-extraction functionality, the document or information extracted from it may be processed by our server or a third-party service to provide that feature.

Documents can contain personal or confidential information. Please review and remove information that is unnecessary for your calculation before uploading a file.

AI accuracy

AI-generated responses are informational and may contain errors. Where a calculator provides a deterministic numerical result, its calculation logic should be treated separately from the AI explanation.

AI features should not be relied upon as personalised professional financial, legal, medical or tax advice.

5. Location and external data features

Certain CalcNest tools may offer location-based features, such as finding nearby information or producing location-specific estimates.

Where precise browser location is requested, your browser should provide a separate permission prompt. CalcNest does not need continuous location access for its ordinary calculators.

If you grant permission and use a location feature, coordinates or other relevant location details may be processed by the website and the service providing the requested result.

You can manage browser location permissions through your browser or device settings. Location permission is separate from cookie consent.

6. Cookies, analytics and consent

CalcNest uses necessary cookies and related browser storage to support website operation, security and remembering privacy choices.

We also use Google Analytics to understand website visits and usage patterns when the required analytics consent has been given. Depending on configuration, analytics data may include page views, engagement information, device details and approximate location.

CalcNest uses CookieYes to present cookie choices and record consent preferences. Visitors can accept, reject or customise optional cookie categories.

You can revisit your choices at any time through the cookie consent controls. For further information, including our cookie inventory, please visit the Cookie Policy.

Our website may contain affiliate links or integrations with third-party services. Those services may process information when you interact with them, subject to their own policies and applicable consent requirements.

CalcNest is not currently describing Google AdSense as an active advertising service in this policy. If display advertising is introduced, relevant disclosures and consent arrangements will be reviewed.

7. Contact forms and business enquiries

If you contact CalcNest or request a quote for custom calculator development, we may receive the information you voluntarily submit, such as your name, email address, company, website and project requirements.

We use enquiry information to respond to messages, understand project requirements, provide quotations and communicate about services you have requested.

CalcNest currently uses FormSubmit to process messages submitted through our contact and custom calculator enquiry forms. Information submitted through these forms is transmitted to FormSubmit and delivered to our business email address so that we can respond to enquiries.

This may include your name, email address, message, company details and project requirements, depending on the form you complete. For more information, please review FormSubmit's Privacy Policy .

Paid services

If you arrange a paid service with CalcNest, additional billing or transaction information may be needed. Where a third-party payment processor is used, its own privacy terms will also apply.

CalcNest does not ask visitors to enter complete payment card details into its ordinary free calculator fields.

8. Third-party providers

CalcNest relies on selected third-party technologies to operate its website and provide some optional features.

• Hosting and WordPress services: infrastructure, security, caching and website operation.
• Google Analytics: website analytics where optional tracking is permitted.
• Google Search Console: aggregated search performance information for site management.
• CookieYes: cookie consent management and cookie inventory services.
• Anthropic and other feature providers: AI-generated explanations or other requested features where integrated.
• Data and location services: external information used by particular calculators where applicable.
• FormSubmit and email services: processing and delivering contact form submissions and custom calculator enquiries to CalcNest.
• Affiliate partners: tracking referrals when visitors follow eligible affiliate links.

External websites and providers may apply their own privacy policies when you use their services or follow external links.

For additional information about Google's data practices, see Google Privacy Policy .

For information about Anthropic, see Anthropic's Privacy Policy .

9. Why information is processed

We process information for purposes that may include providing requested calculator functionality, operating and securing the site, answering enquiries, improving services and meeting legal obligations.

Where laws such as the GDPR apply, processing may rely on different legal bases depending on the activity, including consent for certain optional technologies, legitimate interests for appropriate operational purposes, contractual necessity where a service has been requested, or compliance with legal obligations.

The relevant legal basis depends on the processing activity and the law applicable to the visitor.

10. Data security, retention and transfers

CalcNest uses website hosting, access controls and other technical arrangements intended to help protect its services and the information processed through them.

No internet service can guarantee complete security. We encourage visitors to avoid submitting unnecessary confidential information.

Information may be retained for different periods depending on its purpose, the systems involved, legitimate operational needs, provider settings and applicable legal requirements.

Service providers may process information in countries outside your own. Where relevant privacy laws apply, international transfers should be subject to appropriate protections and provider arrangements.

If you would like more information about information associated with an enquiry or optional feature, please contact us.

11. Your privacy rights

Depending on your location and applicable law, you may have rights concerning personal information, including the ability to:

• Request access to information held about you.
• Request correction of inaccurate information.
• Request deletion where applicable.
• Object to or restrict certain processing.
• Withdraw consent where consent is the legal basis.
• Request data portability where applicable.
• Raise a concern with a relevant privacy authority.

You can withdraw optional cookie consent through CookieYes. For other privacy requests, contact us using the details below. We may need to verify your identity before acting on certain requests.

12. Contact and policy updates

If you have questions about this Privacy Policy, CalcNest's handling of personal information or a privacy-related request, please contact:

CalcNest
Website: calcnest.org
Email: contact@calcnest.org

We may update this Privacy Policy as our tools, services or legal obligations change. Material updates will be reflected in the review date shown at the top of this page.