Gauss-Boaga East to UTM Zone 33N Coordinate Converter
Free online tool to convert coordinates from Monte Mario / Italy zone 2 (Gauss-Boaga East) (EPSG:3004) to WGS84 / UTM zone 33N (EPSG:32633). Professional-grade accuracy using proj4, zero install, runs in your browser.
About Gauss-Boaga East
Monte Mario / Italy zone 2 (Gauss-Boaga East) (EPSG:3004). Italian national grid for eastern Italy (east of 12° — Veneto, Friuli, Marche, Abruzzo, Molise, Puglia, Calabria, Sicilia). Partner of the West zone for full country coverage.
About UTM Zone 33N
WGS84 / UTM zone 33N (EPSG:32633). UTM zone 33N covers 12° to 18° East longitude — eastern Italy (Puglia), Austria, Czech Republic, Poland, Sweden, Norway.
Frequently Asked Questions
What is the difference between Gauss-Boaga East and UTM Zone 33N?
Gauss-Boaga East (EPSG:3004) is national grid and based in Italy, while UTM Zone 33N (EPSG:32633) is utm based in Global. Italian national grid for eastern Italy (east of 12° — Veneto, Friuli, Marche, Abruzzo, Molise, Puglia, Calabria, Sicilia). Partner of the West zone for full country coverage. In contrast, utm zone 33n covers 12° to 18° east longitude — eastern italy (puglia), austria, czech republic, poland, sweden, norway.
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 East). 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 East, 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:3004&to=EPSG:32633&coords=lat,lng for programmatic access. It returns the transformed coordinates as JSON.