AV-G13
Zoom ⇄ Scale ⇄ m/px
Convert web-map zoom levels to ground resolution and map scale at any latitude, DPI and tile size.
● Runs on your device; nothing is uploadedHow to use it
- Set Latitude, Screen DPI and Tile size
- Choose Convert from: Zoom, m / px or Scale 1 : N
- Enter the value and read the other quantities
- Use the zoom table for levels 0–24 at that latitude
Limits
- Zoom
- 0–30
- Latitude
- Between -90° and 90°, exclusive
- Tile size
- 256 or 512 px
- Zoom table
- Levels 0–24
Features
- Ground resolution in metres per pixel at any latitude
- Map scale 1 : N for any screen DPI (96 by default)
- Fractional zoom from a resolution or scale
- Ground distance of 1 cm on screen and tile width on the ground
- Highlights the nearest zoom level in the table
For AI agents: avtools_map_scale
Loading the tool…