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Have a question about our converter? Want to suggest a new conversion tool? Or perhaps report an issue? We are here to help.

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Frequently Asked Questions

How accurate are your conversions?

Our conversions use the international standard of 1 inch = exactly 25.4 millimeters, with results accurate to 4 decimal places.

Is the site really free?

Yes, completely free. We are supported by advertising which allows us to provide the service at no cost to you.

Can I use the converter on my mobile phone?

Absolutely. Our website is fully responsive and works perfectly on any device — mobile, tablet, or desktop.

Do you have other unit converters?

Yes, we offer Inches to MM, CM to Inches, and MM to Feet converters, plus 300 individual mm-value conversion pages.

Can I embed your converter on my website?

Please contact us at support@mmintoinches.com to discuss embed options.

Business Inquiries

For partnership opportunities, advertising, or business inquiries, please email us at support@mmintoinches.com with the subject line “Business Inquiry”.