UK Grid Reference Finder

Search by Postcode, Location, Grid ref, Eastings/Northings, Lat/Long or what3words

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Tip: click the map to read coordinates & conversions. If copy is blocked, you'll be prompted to press Ctrl/⌘+C.

Developer: run self-tests

Checks Lat/Lon ↔ Easting/Northing ↔ GridRef round‑trips and parsing. No external API calls.