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WAB Square Calculator from Postcode, Locator or GPS

Find a 10 km Worked All Britain square from a UK postcode, Maidenhead locator or device GPS position.

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WAB square from postcode or locator

Find the 10 km Worked All Britain square from a UK postcode or Maidenhead locator.

The postcode or locator centre is used. Check an exact position if you are close to a WAB square boundary.

WAB squareEnter a postcode

Choose an input type, enter the location and press the button.

About this calculator

How to use it

Choose a postcode or locator, or use the GPS button, to calculate the WAB square and National Grid reference.

Understanding the result

Postcodes and Maidenhead locators use their centre point. Check exact coordinates when operating near a 10 km WAB square boundary.

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Planning estimate

Use this calculator as a practical starting point. Check critical radio, electrical and installation work with suitable test equipment and current licence requirements.