Zoom To Scale Mapping

The following table provides the mapping between scale and zoom.

Zoom Level Scale (72 DPI)
1 221871572
2 110935786
3 55467893
4 27733946
5 13866973
6 6933486
7 3466743
8 1733371
9 866685
10 433342
11 216671
12 108335
13 54167
14 27083
15 13541
16 6770
17 3385
18 1692