📋 CSV Format

orig_lat,orig_lon,trans_lat,trans_lon,source_datum,target_datum
51.5074,-0.1278,51.5063,-0.1265,WGS84,OSGB36
35.6762,139.6503,35.6758,139.6499,Tokyo,JGD2011
-33.8688,151.2093,-33.8674,151.2079,GDA94,GDA2020
Supported source datums: WGS84, OSGB36, Tokyo, JGD2000, GDA94, NAD27, NAD83
Supported target datums: WGS84, OSGB36, JGD2011, GDA2020, NAD83, ETRS89
Maximum 500 rows. Headers optional (auto-detected).

Use Cases for Batch Validation

  • Survey QA: Validate a transformed dataset before submission to a client or regulatory body
  • GIS data migration: Flag coordinate rows that look suspicious after a datum conversion pipeline
  • Contractor audit: Cross-check transformed coordinates supplied by a third party
  • Legacy data review: Detect NAD27/NAD83 confusion in historical survey data

🔗 Related Tools & Resources

Explore our full suite of coordinate transformation and compliance tools:

🛠 GIS Tools Hub 🌍 Universal Sandbox (EPSG Explorer) 🎯 LatLong —UTM 🛡️Datum Compliance Engine
Certified Geodetic Insight
Verified against professional geodetic standards

The $50,000 Geodetic Drift Liability: NAD83 vs WGS84

Because the North American Plate moves ~2cm/year, NAD83(2011) and WGS84(G1762) currently diverge by over 2.2 meters. Using a "standard" GPS WGS84 coordinate for a high-precision NAD83 cadastral staking has triggered $50,000 Professional Liability claims for foundational rework and utility misplacement.

Risk Exposure Metric: 2.2-Meter Tectonic Drift & Epoch Accumulation
Professional Knowledge Graph: