Geodetic datum transformation examples (NZGD1949 to NZGD2000)

Three different datum transformation methods can be used for transformation between NZGD1949 and NZGD2000.

The following table provides examples of the transformation of 3 points using the different datum transformation methods. These show the transformation from NZGD1949 to NZGD2000 but they can also be used to transform from NZGD2000 to NZGD1949. These example points can be used to verify that the transformation between datums has been performed correctly.

Further information on datum transformation can be found here: Geodetic datum conversions

Example 1

InputLatitudeLongitude
NZGD1949 36° 30' 00.00000" S 175° 00' 00.00000" E
Output NZGD2000LatitudeLongitude
3-parameter36° 29' 53.47284" S 175° 00' 00.61406" E 
7-parameter36° 29' 53.49360" S 175° 00' 00.66696" E 
Distortion grid36° 29' 53.48482" S 175° 00' 00.69469" E 

Example 2

InputLatitudeLongitude
Input NZGD1949 41° 15' 00.00000" S 174° 45' 00.00000" E 
Output NZGD2000LatitudeLongitude
3-parameter 41° 14' 53.79973" S 174° 45' 00.64588" E 
7-parameter 41° 14' 53.83218" S 174° 45' 00.59019" E 
Distortion grid 41° 14' 53.78522" S 174° 45' 00.68926" E 

Example 3

InputLatitudeLongitude
Input NZGD194945° 00' 00.00000" S170° 30' 00.00000" E
Output NZGD2000LatitudeLongitude
3-parameter44° 59’ 54.15117” S 170° 30’ 00.49518” E 
7-parameter44° 59’ 54.13359” S 170° 30’ 00.32600” E 
Distortion grid 44° 59' 54.10356" S 170° 30' 00.32652" E 
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