Can I use British National Grid coordinates with what3words?

Yes, you can use British National Grid coordinates in the what3words app and on our online map.

How to view British National Grid references for a what3words address in the app:

1. Open the menu to the top left and select Settings.

2. Tap Display settings and then select Country-specific systems.

3. Select the format you need.

The online map can’t display British National Grid coordinates alongside a what3words address, but you can choose to include them in a message when you share a location. Here’s how:

1. Select the square you need, then click Share and Customise share settings.

2. Toggle on British National Grid.

3. Finally, select the format you need. Now, whenever you click Share in the address box, you’ll see the location’s British National Grid references in the share preview.

Note: This feature is only available to those accessing the online map from the UK.

Find out how to share British National Grid coordinates using what3words:

• How do I change the message that appears when I share a what3words address?

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• Can I use GPS coordinates with what3words?