Terms of use

Find Your Size is run by one person who likes finding the published rule behind a size.

Find Your Size is run by one person, as the line at the foot of every page says. In these terms, we and us mean that person. The contact page says how to reach us.

You can use Find Your Size to work out a size from rules that makers, trade bodies, standards bodies and charities publish. Each answer shows its rule, its source, the date we checked it and how sure it is.

It is a guide to the size a published rule gives, not a promise that a particular product will fit.

Yes. Check the actual sizes before you buy, and for a child's bike the minimum and maximum inside leg for the exact model.

Sources: National Bed Federation, Bed Advice UK questions (external site) checked 12 Oct 2026; Silentnight size guide (external site) checked 12 Oct 2026; Cycling UK, the right size bike for a child (external site) checked 12 Oct 2026

Sources change and sizes differ between makers: Islabikes notes that the size range for some of its models has changed over the years, and the National Bed Federation says not to go by names alone.

Sources: Islabikes size chart (external site) checked 12 Oct 2026; National Bed Federation, Bed Advice UK questions (external site) checked 12 Oct 2026

If a size here is wrong, tell us: we check the source again and correct the page in public on the corrections page. We cannot promise that a source is free of errors, or that it has not changed since the date we checked it.

As far as the law allows, we are not liable for a loss that comes from relying on a size here without checking the maker's own figures. Nothing in these terms limits any liability that the law does not allow to be limited.

Links marked Ad go to Amazon, and links to our sources go to the publishers we cite, such as makers, trade bodies, standards bodies and charities. We do not run those sites, so their own terms apply there.

We sell nothing ourselves. A purchase through a link marked Ad is made with Amazon or its seller, on their terms. The affiliate disclosure explains how those links work.

Yes. You can link to any page and share any result link.

Please ask us by email before copying our text or drawings.

Yes, these terms can change. When they do, the date at the top of this page changes with them.