Turn map distances into real distances on 1:25 000 and 1:50 000 maps, and back again. Every map is drawn with its line already measured for you, so you can focus on the scale.
The rules
- 1:50 000 means 1 cm on the map = 50 000 cm on the ground = 500 m. So 2 cm = 1 km.
- 1:25 000 means 1 cm on the map = 25 000 cm on the ground = 250 m. So 4 cm = 1 km.
- Map to real: multiply the cm by the metres per cm. Real to map: divide.
- Bending routes: add up every measured section first, then use the scale once.
- Every grid square is 1 km × 1 km = 1 km² on both scales. Count whole squares, then add halves.
- Check your units. 1 km = 1000 m and 1 m = 100 cm.
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