Disclaimer
Last updated 14 August 2026
The information on www.convertwise.com is published for general reference. This page explains what that means in practice.
General information only
Everything on this site is provided for general informational purposes. It does not constitute professional advice of any kind — engineering, medical, legal, financial or otherwise — and it is not a substitute for a qualified specialist who knows your circumstances.
Accuracy
Conversion factors are taken from the international definitions: the inch as exactly 25.4 mm, the pound as exactly 0.45359237 kg, the mile as exactly 1,609.344 m. Calculations run at full precision and only the displayed result is rounded. Even so, we cannot guarantee that every page is free of typographical or editorial error, and we make no warranty as to completeness or fitness for a particular purpose.
Safety-critical and regulated use
Do not rely on this site alone where an error could cause harm or financial loss. That includes, without limitation:
- medication dosing and other clinical calculations;
- structural, mechanical or electrical engineering work;
- aviation, marine and vehicle load calculations;
- legal, customs or tax filings;
- competitive weight classes and official record attempts.
In those situations verify the figure against the governing standard, specification or professional adviser.
External links
We link to external sites we believe are useful. We do not control them, we do not monitor their changes, and we accept no responsibility for their content, accuracy or availability. Following an external link is at your own risk.
Advertising
This site is funded by advertising served by third parties. We do not select individual advertisements, and their presence is not a recommendation. Any dealings you have with an advertiser are between you and them.
No liability
To the fullest extent permitted by law, ConvertWise Media Ltd accepts no liability for loss or damage arising from use of, or reliance on, the information published here.
Reporting an error
If you find a mistake we want to know. Email hello@convertwise.com with the page address and the figure you believe is wrong. Confirmed corrections are normally published within a week, as set out in our editorial policy.