EPSG:CODE

NAD27 to NAD83 (7)

EPSG:4267 → EPSG:4269

Coordinate Reference Systems

Source CRS
EPSG:4267
NAD27
Geographic 2D
Target CRS
EPSG:4269
NAD83
Geographic 2D

Remarks

NADCON5 method expects longitudes 0-360°; source and target CRS longitudes in range ±180°. Accuracy at 67% confidence level is 0.15m onshore, 1m nearshore and undetermined farther offshore. For application in Gulf of Mexico refer to IOGP report 373-26.

Frequently Asked Questions

What is the accuracy of the NAD27 to NAD83 transformation?

This transformation (EPSG:8555) has an accuracy of 0.15m using the NADCON5 (2D) method. Area of use: USA - CONUS and GoM.