topic Re: Difference in km distance between Google Earth and Arc in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688550#M22835 <HTML><HEAD></HEAD><BODY><P>Don't use web Mercator to measure distance and area, use another projection.</P><P>There are links that reference this...</P><P></P><P><A href="https://support.esri.com/en/technical-article/000011356">Why are my map, distance and area measurements wrong when using WGS 1984 Web Mercator?</A></P></BODY></HTML> Sat, 28 Apr 2018 09:03:48 GMT DanPatterson_Retired 2018-04-28T09:03:48Z Difference in km distance between Google Earth and Arc https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688549#M22834 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>When checking the distance of a path in Google Earth, it's total length is 2223 km. Bringing the KMZ into ArcMap, the distance I get from Calculate Geometry is 3303km. See attached pics.</P><P></P><P>What could account for the 50% difference? Within ArcMap, the data frame is set to Web Mercator 1984 (auxiliary sphere), as is the coordinate system of the shapefile I saved from the KMZ.</P></BODY></HTML> Sat, 28 Apr 2018 02:14:04 GMT https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688549#M22834 MalcolmLittle 2018-04-28T02:14:04Z Re: Difference in km distance between Google Earth and Arc https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688550#M22835 <HTML><HEAD></HEAD><BODY><P>Don't use web Mercator to measure distance and area, use another projection.</P><P>There are links that reference this...</P><P></P><P><A href="https://support.esri.com/en/technical-article/000011356">Why are my map, distance and area measurements wrong when using WGS 1984 Web Mercator?</A></P></BODY></HTML> Sat, 28 Apr 2018 09:03:48 GMT https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688550#M22835 DanPatterson_Retired 2018-04-28T09:03:48Z Re: Difference in km distance between Google Earth and Arc https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688551#M22836 <HTML><HEAD></HEAD><BODY><P>This question is related to yours <A href="https://community.esri.com/thread/211837-attribute-length-and-shape-lenght-are-not-the-same">https://community.esri.com/thread/211837-attribute-length-and-shape-lenght-are-not-the-same</A>&nbsp;</P></BODY></HTML> Sat, 28 Apr 2018 13:41:04 GMT https://community.esri.com/t5/geoprocessing-questions/difference-in-km-distance-between-google-earth-and/m-p/688551#M22836 AbdullahAnter 2018-04-28T13:41:04Z