Map Projections

Commonly used Map Projections in Victoria

In our work, we constantly need to look up the EPSG codes based on a projection description or vice versa. Here’s a list of the ones we commonly encounter in our work across Victoria.

EPSG Description MapInfo Projection String
EPSG:3857 GlobalMercator (also known as EPSG:900913) CoordSys Earth Projection 10, 157, 7, 0
EPSG:4326 WGS84 / Long/Lat CoordSys Earth Projection 1, 104
EPSG:4283 GDA94 / Long/Lat CoordSys Earth Projection 1, 116
EPSG:28354 GDA94 / MGA Zone 54 CoordSys Earth Projection 8, 116, “m”, 141, 0, 0.9996, 500000, 10000000
EPSG:28355 GDA94 / MGA Zone 55 CoordSys Earth Projection 8, 116, “m”, 147, 0, 0.9996, 500000, 10000000
EPSG:3111 GDA94 / Vicgrid94 CoordSys Earth Projection 3, 116, "m", 145, -37, -36, -38, 2500000, 2500000
EPSG:32754 WGS84 / UTM Zone 54 CoordSys Earth Projection 8, 104, “m”, 141, 0, 0.9996, 500000, 10000000
EPSG:32755 WGS84 / UTM Zone 55 CoordSys Earth Projection 8, 104, “m”, 147, 0, 0.9996, 500000, 10000000

Map Tile Scales

Thanks to Indicatrix for sourcing this handy reference for map tile scales used by Google Maps, Bing Maps, OpenStreetMap, etc.

Zoom level Scale denominator
0 559,082,264
1 279,541,132
2 139,770,566
3 69,885,283
4 34,942,642
5 17,471,321
6 8,735,660
7 4,367,830
8 2,183,915
9 1,091,958
10 545,979
11 272,989
12 136,495
13 68,247
14 34,124
15 17,062
16 8,531
17 4,265
18 2,133
19 1,066
20 533