3.6 km
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The Nelson 1955 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Nelson 1955 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Nelson 1955 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Gisborne 1926 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Gisborne 1926 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Gisborne 1926 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Wellington 1953 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Wellington 1953 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Wellington 1953 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Stewart Island 1977 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Stewart Island 1977 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Stewart Island 1977 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Stewart Island 1977 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Stewart Island 1977 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Stewart Island 1977 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Nelson 1955 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Nelson 1955 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Nelson 1955 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Lyttelton 1937 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Lyttelton 1937 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Lyttelton 1937 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The DunedinBluff 1960 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the DunedinBluff 1960 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the DunedinBluff 1960 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Bluff 1955 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Bluff 1955 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Bluff 1955 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).

The Napier 1962 to NZVD2016 Conversion Raster provides users with a two arcminute (approximately 3.6 kilometres) raster image of the conversion of normalorthometric heights from the Napier 1962 local vertical datum to the New Zealand Vertical Datum 2016 (NZVD2016). The conversion value is represented by the attribute “O”, in metres. This conversion and NZVD2016 are formally defined in the LINZ standard [LINZS25009](http://www.linz.govt.nz/regulatory/25009). The height conversion grid models the difference between the Napier 1962 vertical datum and NZVD2016 using the LINZ GPSlevelling marks. From the GPSlevelling marks the expected accuracy is better than 2 centimetres (95% Confidence interval). More information on converting heights between vertical datums can be found [on the LINZ website](http://www.linz.govt.nz/data/geodeticservices/coordinateconversion/convertingbetweennzvd2016nzgd2000andlocalverticaldatums).