Map Scale Converter
Enter a scale denominator and either map distance or real distance. Add a map area to calculate real area using the squared scale.
Map Scale Converter
Enter values; distance units are the same on both sides.
A QUICK WALKTHROUGH
How to use this tool
- Enter the scale denominator.
- Provide either map distance or real distance; leave one blank to solve it.
- Optionally enter map area and convert.
Precise ratio math
For a 1:N scale, real distance = map distance × N, and map distance = real distance ÷ N. The distance units must match.
Area conversion
Real area = map area × N². Values stay local in the browser and are not uploaded.
GOOD TO KNOW
Common questions
Can it solve an unknown scale?
Yes. Provide a map distance and real distance; the denominator is real ÷ map.
Are units converted?
No. Keep the same distance unit on both sides; the ratio converts magnitude only.
How is area scaled?
By the square of the scale denominator, because both dimensions scale.