Scalex MapWheel™

Electronic distance measurement for any scale map

Measure maps the fast, accurate way with the Scalex MapWheel™. Here is the perfect tool specifically for taking scaled measurements from maps. Just select the built-in scale factor to match the map and roll the MapWheel. The measurement is displayed instantly.

MapWheel Product Image


  • Accuracy: 0.25%
  • Batteries: 2 x AAA (included)
  • Rugged roller wheel for accurate measurement
  • Audible beeper indicates wheel motion
  • Easy-to-read display shows length, count and scale factor simultaneously
  • COUNT and ADD button (far side)
  • 19 built-in user scale factors including all common map scales
  • Measures in miles, kilometers and nautical miles
  • Counter and adder buttons on probe tip let you count stops made or add fixed destination lengths as you measure
  • Calculate auto-scale factor from reduced, enlarged or odd-scale maps
  • Create, store and retrieve user scale factors
  • Clear, audible tone indicates wheel movement
  • Easy-to-read liquid crystal display shows length, count and scale factor simultaneously
  • Automatic shut-off assures long battery life
  • Low battery indicator
  • One year limited warranty

Optional protective case available. If you're going to carry the map wheel into the field, you probably want the case.
MapWheelCase Product Image

MapTools does not sell the Map Wheel or it's case directly anymore. They are available from Amazon. MapTools may receive a small commission when you use this link to order from Amazon. It will not impact the price you pay on Amazon.