You can create circles interactively, from known center point and size, or based on a center point and travel rate and time.
Create circles interactively
To create circles interactively by clicking the map, complete the following steps:
- On the ribbon, click the Insert tab.
 - In the Measurements group, click Distance and Direction    
.     - In the Distance and Direction pane, click the Circle tab.
 - Click Map Point Tool 
. - Click a location on the map to designate the center point of the circle.
 - Optionally, choose a unit of measurement from the drop-down menu.
 - Click a location on the map to designate the outer edge of the circle.
A circle is created and added to the map.
 
Create circles from known coordinates
To create circles using known coordinates and a known radius or diameter, complete the following steps:
- In the Distance and Direction pane, click the Circle tab.
 - Enter a coordinate in the Center Point text box.
 - Enter a distance in the Radius/Diameter text box.
 - Press Enter or click Create Circle.
A circle is created and added to the map.
 
Create circles using a time and speed
To create circles to identify potential locations for moving objects using a center point, time, and speed, complete the following steps:
- In the Distance and Direction pane, click the Circle tab.
 - Enter a coordinate in the Center Point text box or click  Map Point Tool 
   and click a location on the map.  - Expand Distance Calculator.
 - Enter a rate of time in the Time text box.
 - Enter a rate of travel in the Rate text box.
 - Press Enter or click Create Circle.
A circle is created and added to the map.
 
Change tool units
You can change the units the tool uses to display and label outputs.
- Use the Radius/Diameter drop-down list to change the unit of measure.
 - Use the Time drop-down list to change the unit of time.
 - Use the Rate drop-down list to change the unit of measure.
 
Measure circles
The From drop-down list provides the following circle measuring options:
| Option | Description | 
|---|---|
Radius  | The circle is measured and labeled with a radius value.  | 
Diameter  | The circle is measured and labeled with a diameter value.  |