Privacy PolicyHow Inches to MM Handles Your Data

Inches to MM is a set of web-based tools for manufacturing engineers, CNC machinists, and procurement professionals who need to convert imperial dimensions to metric units, calculate machining allowances, convert BOM tables, and consult engineering reference charts. This privacy policy applies to all tools and pages hosted on inches-to-mm.com.

We aim to collect only the minimum data required to operate and improve the site. Depending on how you use the site, we may collect the following types of information:

• Technical information such as browser type, operating system, approximate region, and device type.
• Usage information such as pages visited, buttons clicked, and approximate time spent on certain features.
• Error and performance data that helps us understand when something is slow or broken.

We do not intentionally collect sensitive personal information such as government IDs, payment card details, or medical data. Our tools are designed for technical content such as dimensions and engineering notes, not consumer identity data.

For tools such as the BOM converter and unit conversion calculators, calculations are performed directly in your browser using JavaScript. When you upload a file or enter dimensions, that data is processed locally on your device and is not sent to our servers for storage or batch analysis.

This approach is intentional: many users work with confidential drawings and BOM tables. Keeping conversions on the client side minimizes the risk of leaking proprietary engineering data.

We may use privacy-conscious analytics tools to understand overall usage trends, such as which tools are most popular and which browsers are commonly used. Where possible, these tools are configured to avoid collecting personally identifiable information and to respect standard browser privacy settings.

If we use cookies, they are limited to functional and analytics purposes. We do not use cookies to sell your data to third parties or to run invasive advertising campaigns. You can adjust your browser settings to control or block cookies if desired.

We use aggregated and technical information to operate, maintain, and improve the site. Typical uses include:

• Ensuring the site loads quickly and works reliably on common devices and browsers.
• Understanding which tools and content are most helpful for manufacturing workflows.
• Detecting and fixing bugs, performance issues, or security problems.
• Planning new features and improvements based on anonymous usage patterns.

We retain aggregated analytics and error logs only as long as necessary to analyze trends and keep the service reliable. Because core engineering data is processed locally in your browser, we do not store your uploaded BOM files, part drawings, or conversion inputs on our servers as part of normal tool usage.

If we integrate third-party services such as analytics providers, performance monitoring, or content delivery networks, we select them with privacy and security in mind. These providers may process limited technical and usage data on our behalf under their own privacy policies.

We do not sell your data to third parties. Any sharing of data is limited to service providers that help us operate the website and is restricted to the minimum necessary scope.

You can choose how and when you interact with inches-to-mm.com. In particular, you can:

• Use the tools without creating an account or providing contact details.
• Control or block cookies through your browser settings.
• Limit the information shared with analytics by using privacy-oriented browsers or plugins.

Depending on your location, you may have additional rights under local data protection laws (for example, access, correction, or deletion of personal data). Because we minimize the collection of personally identifiable information, these rights will often apply only in limited situations.

Inches to MM is designed for professional and technical users such as engineers, CNC operators, and procurement specialists. The site is not intended for children under the age of 16, and we do not knowingly collect personal information from children.

We may update this privacy policy from time to time as our tools evolve or as legal requirements change. When we make material changes, we will update the "Last updated" date at the top of this page. For significant changes, we may also provide a short notice on the homepage or relevant tool pages.

If you have questions about this privacy policy or how we handle data, you can contact the Inches to MM team at [email protected] or by using the contact information provided on the site. When reaching out, please avoid sending sensitive personal or proprietary data unless it is strictly necessary to explain a technical issue.