NAD83 (lat/lng) to WGS84 Coordinate Converter
Free online tool to convert coordinates from North American Datum 1983 (EPSG:4269) to World Geodetic System 1984 (lat/lng) (EPSG:4326). Professional-grade accuracy using proj4, zero install, runs in your browser.
About NAD83 (lat/lng)
North American Datum 1983 (EPSG:4269). Standard geographic reference for USA, Canada, Mexico. Drifts slowly relative to WGS84 (~1m difference in typical use). Base for all US survey products.
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.
Frequently Asked Questions
What is the difference between NAD83 (lat/lng) and WGS84?
NAD83 (lat/lng) (EPSG:4269) is geographic and based in USA, while WGS84 (EPSG:4326) is geographic based in Global. Standard geographic reference for USA, Canada, Mexico. Drifts slowly relative to WGS84 (~1m difference in typical use). Base for all US survey products. In contrast, the global reference system used by gps, google maps and virtually all modern navigation. defined by satellite geodesy and continuously refined.
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 NAD83 (lat/lng), 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:4269&to=EPSG:4326&coords=lat,lng for programmatic access. It returns the transformed coordinates as JSON.