[GIS] What ratio scales do Google Maps zoom levels correspond to

google mapsscalezoom

Can anyone provide me with a link (or some details) on the actual ratio to "zoom level" figures for Google Maps?

e.g. Google Maps Level 13 = 1:20000

Best Answer

If you are designing a map you plan on overlaying over google maps or virtual earth and creating a tiling scheme then i think what you are looking for are the scales for each zoom level, use these:

19 : 1128.497220
18 : 2256.994440
17 : 4513.988880
16 : 9027.977761
15 : 18055.955520
14 : 36111.911040
13 : 72223.822090
12 : 144447.644200
11 : 288895.288400
10 : 577790.576700
9 : 1155581.153000
8  : 2311162.307000
7  : 4622324.614000
6  : 9244649.227000
5  : 18489298.450000
4  : 36978596.910000
3  : 73957193.820000
2  : 147914387.600000
1  : 295828775.300000
0  : 591657550.500000

Source: http://webhelp.esri.com/arcgisserver/9.3/java/index.htm#designing_overlay_gm_mve.htm

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