Your privacy matters to us. This page explains exactly what data we collect, how we use it, and the choices you have. Last Updated: [8July, 2026]
Welcome to 40Calc. This Privacy Policy explains how 40calc.com (the “Site”), operated by Mustafa Dev, collects, uses, and protects information when you visit and use our website.
We have written this policy in plain language on purpose — you deserve to understand exactly what happens with your data, not wade through legal jargon to find out.
By using 40Calc, you agree to the collection and use of information as described in this policy.
Before the full details, here’s the summary:
When you use our Contact form, we collect:
We only use this information to respond to your inquiry. We do not add you to any mailing list or use your contact details for marketing without your explicit consent.
The numbers and values you enter into any calculator on 40Calc are processed entirely within your browser using JavaScript. This data is:
Your calculations are completely private.
Like most websites, when you visit 40Calc we automatically collect certain technical information, including:
This data is collected through analytics tools (see Section 5) and is used only to understand how the Site is used and to improve it. It is not used to personally identify you.
We use the information we collect for the following purposes:
To respond to your inquiries
Contact form submissions are used solely to reply to your message and resolve your query.
To understand and improve the Site
Analytics data helps us understand which calculators are most used, how visitors navigate the site, and where we can improve performance and usability.
To maintain site security
Technical data helps us detect and prevent abuse, spam, and malicious activity.
To comply with legal obligations
We may use or retain data where required by applicable law.
We do not use your data for:
We use a small number of trusted third-party services to operate the Site. Each has its own privacy policy governing how it handles data.
Google Analytics
We use Google Analytics to collect anonymized usage data. Google may set cookies on your device. You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.
Google AdSense (if/when applicable)
We may display advertisements through Google AdSense. Google may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising by visiting Google’s Ad Settings.
Web Hosting Provider
Our hosting provider may collect server logs containing IP addresses and technical data as part of standard hosting operations.
Contact Form Service
Form submissions are processed through Elementor Form. Submitted data is stored temporarily to allow us to respond to your message.
Cookies are small text files stored on your device when you visit a website. They help the site remember information about your visit.
Essential cookies
Required for the Site to function properly. These cannot be disabled.
Analytics cookies
Used by Google Analytics to collect anonymized usage data. These can be disabled without affecting site functionality.
Advertising cookies (if/when applicable)
Used by Google AdSense to serve relevant advertisements. You can opt out via Google’s Ad Settings.
You can control or disable cookies through your browser settings. Instructions for the most common browsers:
Note: disabling certain cookies may affect how some parts of the Site function.
Contact form data
We retain messages for as long as necessary to resolve your inquiry, plus a reasonable period for record-keeping afterward, after which they are permanently deleted.
Analytics data
Anonymized analytics data is retained according to our analytics provider’s default retention settings (typically 14 months for Google Analytics).
Calculator inputs
Not retained at all — they are never sent to our servers.
Depending on where you are located, you may have certain rights regarding your personal data:
For users in the European Union / UK (GDPR)
For users in California (CCPA)
For all users
To exercise any of these rights, contact us at info@40cal.com. We will respond within 30 days.
40Calc is not directed at children under the age of 13 (or 16 in certain jurisdictions, including the EU). We do not knowingly collect personal information from children.
If you believe a child has provided us with personal information, please contact us at info@40calc.com and we will delete it promptly.
We take reasonable and appropriate technical and organizational measures to protect the information we collect against unauthorized access, loss, misuse, or alteration. These measures include:
However, no method of transmission over the internet or method of electronic storage is 100% secure. While we do our best to protect your data, we cannot guarantee absolute security.
40Calc may contain links to third-party websites. This Privacy Policy applies only to 40calc.com. We are not responsible for the privacy practices of any linked third-party site and encourage you to read their privacy policies before providing any personal information.
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. When we do, we will:
We encourage you to review this page periodically. Continued use of the Site after any changes constitutes your acceptance of the updated policy.
If you have any questions, concerns, or requests regarding this Privacy Policy or how we handle your data, please contact us:
Email: info@40cal.com
Contact Form: Click Here
We will respond to all privacy-related inquiries within 30 days.