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NTv2

The NTv2 tool transforms coordinates (geographic, UTM/MTM/Stereo) between the NAD27, ATS77, NAD83(Original), and NAD83(CSRS) reference systems using binary Grid Shift Files (.GSB format) where available. Users can select different grids by clicking on the "select grid" link below.

Sample Batch Files Available

If you need help with the “Batch Processing” file format for CSV files you can now download sample files by clicking on the "Help for NTv2" link below.

Grid shift files download

Grid shift files are now available for download on the coordinate transformations page.

Help for NTv2

The NTv2 National Transformation tool can transform coordinates (geographic, UTM/MTM/Stereo) between the NAD27, ATS77, NAD83(Original), and NAD83(CSRS) reference systems using binary Grid Shift Files (.GSB format) where available. The transformation is 2D (horizontal) therefore heights are not required.

Two coordinate systems are available: geographic and UTM/MTM/Stereo. All coordinate fields are required in the chosen coordinate system.


Reference Systems

From: NAD27 To: NAD83(Original)

Batch Processing

Single Calculation

Geographic
UTM/MTM/Stereo

Results (NAD83)

Latitude Longitude
Coordinate
Shift (metres)
Shift (seconds)
Easting (metres) Northing (metres)
Coordinate
Shift

Use of Canadian Geodetic Survey products and data is subject to the Open Government Licence - Canada


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