Terms of use
Last reviewed in January 2026. By using this site you accept the terms set out below.
Acceptance
Opening and using this website means you agree to these terms. If any part of them does not work for you, please stop using the site. Continued use after an update signals acceptance of the revised version.
What the service is
We provide a calculator that converts between A1C and estimated average glucose, charts dated readings you supply, and produces a printable report. We also publish written guides on related topics. Everything is offered free of charge and without registration.
Not medical advice
This is the most important term on the page. The site provides general educational information and mathematical conversion only. It does not practise medicine, does not create any clinician relationship, and must never be used to diagnose a condition or to start, stop or alter any treatment. Always consult a qualified professional about your own results. Our full position appears on the medical disclaimer page.
Accuracy of results
The conversion applies a published relationship derived from population research. Outputs are estimates and can differ from laboratory measurements or from continuous monitoring data for reasons described throughout the site. We work to keep the formula and the reference bands aligned with current guidance, but we give no warranty that every figure is free of error, and you use the results at your own discretion.
Acceptable use
You agree not to do any of the following.
- Present output from this tool as a clinical diagnosis or as professional advice.
- Attempt to disrupt, overload, or gain unauthorised access to the site or its hosting.
- Copy the content in bulk for republication without written permission.
- Remove or obscure any disclaimer, notice or attribution when sharing material from here.
- Use the site in any way that breaks a law applying to you.
Your data and your record
Readings you enter stay on your device, as described in the privacy policy. Because we never hold a copy, we cannot restore anything you lose. Keeping a backup of anything important, such as a printed or downloaded report, is your responsibility.
Intellectual property
The written guides, page copy, illustrations, layout and source code on this site belong to us and are protected by copyright. You may read, print and share pages for personal or clinical reference. Republishing substantial portions, or using them commercially, requires permission in writing.
The underlying conversion relationship is published scientific work and is not claimed by us. Any product names mentioned belong to their respective owners.
External links
Where we link to another site, that link is offered for reference. We do not control those destinations and we take no responsibility for their content, accuracy or practices. Visiting them is at your own discretion.
Availability
We aim to keep the site reachable and current, but we do not promise uninterrupted access. Features may be added, changed or withdrawn, and maintenance or hosting issues may cause downtime without notice.
Limitation of liability
To the fullest extent permitted by the law that applies to you, we are not liable for any loss or damage arising from use of this site or reliance on anything it produces. That includes decisions made on the basis of a converted figure, a chart, or a report. Nothing in these terms limits liability that cannot lawfully be limited.
Changes
These terms may be revised. The reviewed date at the top always reflects the current version, and material changes will be visible on this page rather than announced only by email.
Contact
Questions about these terms are welcome through the contact page.