1. Calculate the corresponding value for your map units (see below).
2. Select Map in the Object Manager.
3. In the Property Manager, click the Scale tab.
4. Enter the calculated X or Y scale value. For example, if you wanted 1:24000 and your map is in feet, you would enter 2000 to the right of Map units per in. for your X or Y scale.

Example Calculations:

• If your map is in units of feet and your page units are inches, then a scale of 1:24000 is calculated as follows:
  1 inch : 24000 inches
  24000 inches = 2000 feet
  Map units per in. = 2000
• If your map is in units of meters and your page units are inches, then a scale of 1:24000 is calculated as follows:
  1 inch : 24000 inches 
  24000 inches = 60960 centimeters
  60960 centimeters = 609.60 meters
  Map units per in. = 609.60
  
  
• If your map is in units of meters and your page units are centimeters, then a scale of 1:24000 is calculated as follows:
  1 centimeters : 24000 centimeters
  24000 centimeters = 240 meters
  Map units per cm. = 240
• If your map is in units of lat/long, then a scale of 1:24000 is calculated as follows:
  1° of latitude is about 68.703 miles or 4353022 inches.
  1 inch : 24000 inches
  24000 inches = 0.0055° latitude (Y Scale)
  Map units per in. = 0.0055 in the Y Scale section
  
  1 degree of longitude is 69.172 miles * cos(latitude). This is the same as 4382737.92 inches * cos(latitude). So find the latitude of the center of your map and insert it in the equation to find how much 1° of longitude is for your map. For example, if your central latitude value is 39.5°:
  
  1 inch : 24000 inches
  1° longitude @ 39.5° N = 4382737.92 inches * cos (39.5) = 3381828 inches. 
  24000 inches = 0.007097° longitude (X Scale)
  Map units per in. = 0.007097 in the X Scale section

Updated November 13, 2018