Coordinate accuracy varies by device and datum. Do not use these results for legal or construction purposes without checking:
GPS Accuracy Alert
Consumer GNSS devices typically achieve 3–10m accuracy, though urban multipath can introduce errors up to 20–30m. This can cause critical errors in your data.
Check My AccuracyDatum Shift Risk
Using the wrong coordinate system (e.g. WGS84 vs NAD83) creates a systematic ~1 to 2m tectonic reference frame offset.
Verify My Datum