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Duration of hold calculator

Duration of hold calculator

Instantly find out for how long you must display legal supers

The calculator will be back up and running soon - in the mean time you can still download and use it on your iOS device via the app store. Search for "Clearcast Ltd". Alternatively, you could try coming to this page through an older browser.

You can calculate the duration yourself by allowing 0.2 seconds per word plus 3 seconds (or 2 seconds if there are fewer than 10 words).

There is a CAP Help Note available here with further detail.


There are strict rules about for how long you must display legal supers — or small print — on TV ads in the UK

PROBLEMS USING THIS APP? Click here for help or search "Clearcast Ltd" in the app store to install the calculator on your iOS device.

This ‘duration of hold’ can depend on the subject of your ad and the type and length of legal super. We’ve created this tool so you can instantly work out the requirements for your legal supers.

If you have any questions about displaying legal supers, please speak to your Clearcast contact.

Related information: