Geoids Download

If you need to convert a geoid to our format, please feel free to contact and we will be happy to assist you.

The following downloads are for 3DF Zephyr 7.0 and newer releases. If you are using 3DF Zephyr 6.513 or older, please head to the legacy Geoid download page.

Installation Instructions

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Simply pick the “Import from disk” in the geoid selection dialog when converting from/to a coordinate system.

Doing so will open a dialog that will ask you to locate the proper geoid file. Proceed to select the downloaded desired Geoid and Zephyr will do the rest!

Global Models

EGM2008 1′ geoid model
EGM2008 2’30” geoid model
EGM2008 5′ geoid model
EGM84 15′ geoid model
EGM84 30′ geoid model
EGM96 5′ geoid model
EGM96 15′ geoid model


AUSGeoid09 geoid model
AUSGeoid20 geoid model


GCG2016 1′ geoid model


Korean 1′ geoid model


JGEOID2008 geoid model
GSIGEO2011 geoid model


CHGeo2004 (Swiss Geoid 2004) geoid model

United States of America

Geoid12A for NAD83(2011) geoid model
Geoid12B for NAD83(2011) geoid model
Geoid18 for NAD83(2011) geoid model