Information on this page is accurate for version v.670 and can differ from the current info in v.806.
Interactive map
There is a fan-made interactive map that supports search and distance calculation.
Current map
The scale is 1 pixel (in full size image) for 1 tile in game. One tile in game is 1km, so to measure the distance you simply need to count the pixel distance between the two points.
Distance calculation is already present in the interactive map above, but in case it doesn't work, you can download the static map and use an external software such as MSpaint, Gimp, or any online tool (e.g., RapidTables) to measure the distance.
World Map v670. (Left, Top) is (0,0). (Right, Bottom) is (8191, 4267).
Legends (need to see full size image and maximum zoom in to see the coast):
Blue : water
Ivory white : coast
Dark brown : mountain
Black : road
Dark green : forest
Brown : radioactive forest
Light green : swamp
Red : radioactive swamp
Light brown : wasteland
Grey : radioactive wasteland
World Map v670 with cities (WARNING: Possible spoilers ahead!)
The circles and points indicate cities and locations. Each city is to scale with the size in game, with possibly slight error. By default their color is white, but if there is more information on them, they will be color-coded.
Red area around Ufa is the bee zone. This is not an exact match to the ones in game, but close enough.
Color legends:
Light blue cities are cities close to a safe haven (while safe haven itself is green)
Light green cities are cities close to a survivor base (while survivor base itself is green)
Pink cities are cities close to a bandit fort (while bandit fort itself is red)
Orange points are possible places for Looter's warehouse
Cyan points are locations related to Searching for Truth quest,
Purple points are locations related to Way Back Home quest
Light blue points are locations related to survivor base quests
Yellow points are other interesting locations.
World Map v670 with cities and zones
The zone number defines the difficulty level of the enemies in that zone, the possible loot, etc.
For example, looters and bandits start appearing in zone 3, and only up to Bandit Tier 1.