Gauss-Boaga West to ETRS89 UTM 32N Coordinate Converter
Free online tool to convert coordinates from Monte Mario / Italy zone 1 (Gauss-Boaga West) (EPSG:3003) to ETRS89 / UTM zone 32N (Germany west) (EPSG:25832). Professional-grade accuracy using proj4, zero install, runs in your browser.
About Gauss-Boaga West
Monte Mario / Italy zone 1 (Gauss-Boaga West) (EPSG:3003). Italian national grid for western Italy (west of 12° longitude — Piemonte, Lombardia, Liguria, Toscana, Lazio). Historical system, still widely used in cadastral and survey workflows.
About ETRS89 UTM 32N
ETRS89 / UTM zone 32N (Germany west) (EPSG:25832). German official system for western Länder. ETRS89 is the European Terrestrial Reference System, the de-facto standard for EU surveying.
Frequently Asked Questions
What is the difference between Gauss-Boaga West and ETRS89 UTM 32N?
Gauss-Boaga West (EPSG:3003) is national grid and based in Italy, while ETRS89 UTM 32N (EPSG:25832) is utm based in Germany. Italian national grid for western Italy (west of 12° longitude — Piemonte, Lombardia, Liguria, Toscana, Lazio). Historical system, still widely used in cadastral and survey workflows. In contrast, german official system for western länder. etrs89 is the european terrestrial reference system, the de-facto standard for eu surveying.
Is this conversion accurate for surveying?
Yes. The conversion uses the industry-standard proj4 library with full datum shift parameters (including seven-parameter Helmert transformation for Gauss-Boaga West). 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 Gauss-Boaga West, enter coordinates as easting, northing in meters (e.g. 514500, 5033880). 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:3003&to=EPSG:25832&coords=lat,lng for programmatic access. It returns the transformed coordinates as JSON.