WGS84 to ETRS89 UTM 30N Coordinate Converter
Free online tool to convert coordinates from World Geodetic System 1984 (lat/lng) (EPSG:4326) to ETRS89 / UTM zone 30N (Spain west) (EPSG:25830). Professional-grade accuracy using proj4, zero install, runs in your browser.
About WGS84
World Geodetic System 1984 (lat/lng) (EPSG:4326). The global reference system used by GPS, Google Maps and virtually all modern navigation. Defined by satellite geodesy and continuously refined.
About ETRS89 UTM 30N
ETRS89 / UTM zone 30N (Spain west) (EPSG:25830). Spanish official system for western regions (Galicia, Asturias, Extremadura, western Portugal). ETRS89 datum, EU standard.
Frequently Asked Questions
What is the difference between WGS84 and ETRS89 UTM 30N?
WGS84 (EPSG:4326) is geographic and based in Global, while ETRS89 UTM 30N (EPSG:25830) is utm based in Spain. The global reference system used by GPS, Google Maps and virtually all modern navigation. Defined by satellite geodesy and continuously refined. In contrast, spanish official system for western regions (galicia, asturias, extremadura, western portugal). etrs89 datum, eu standard.
Is this conversion accurate for surveying?
Yes. The conversion uses the industry-standard proj4 library with full datum shift parameters (). Typical accuracy is sub-meter for civilian applications. For cadastral precision, always verify against the official agency datum.
What coordinate format should I use?
For WGS84, enter coordinates as decimal degrees in the format "lat, lng" (e.g. 45.4642, 9.1900). The tool auto-detects the format.
Can I convert many points at once?
Yes, use our batch CSV converter. Upload a CSV with your points, select the transformation, download the converted file. Free with a SurveyingPedia account.
Is there an API?
Yes — call /api/v1/transform?from=EPSG:4326&to=EPSG:25830&coords=lat,lng for programmatic access. It returns the transformed coordinates as JSON.