Geofence Map Tool

Understand geofencing and visualize geofence boundaries with our free radius tool.

What Is a Geofence?

A geofence is a virtual boundary around a real-world location. When a device (usually a smartphone) enters or exits the geofence, it triggers an action — like sending a notification, logging the event, or adjusting app behavior. Geofences are typically circular, defined by a center point and a radius.

Source: Wikipedia — Geo-fence

How Geofencing Works

Geofencing uses GPS, Wi-Fi, cellular data, or Bluetooth to determine a device's location. When the device's coordinates fall within (or outside) the defined boundary, the geofence is “triggered.” Common geofence radius sizes range from 100 meters (for store-level targeting) to several kilometers (for regional boundaries).

Creating a Basic Geofence with Our Tool

While our radius map tool isn't a full geofencing platform (it doesn't track devices or trigger actions), it's useful for the planning and visualization step:

  1. 1Open the radius tool and enter the center location of your desired geofence.
  2. 2Set the radius to your desired geofence size.
  3. 3Visualize the area and adjust as needed.
  4. 4Export as KML to import into your geofencing platform or development environment.

Note: For implementing actual geofencing (with device tracking and triggers), you'll need a development platform like Google's Geofencing API (Android), Apple's Core Location (iOS), or a third-party service like Radar.io or PlotProjects.

Common Geofence Sizes

Use CaseTypical RadiusNotes
Retail store entry50–200 mTrigger when customer approaches
Restaurant / local business200–500 mNearby notifications
Campus / facility500 m – 2 kmEmployee check-in
City-level targeting5–25 kmRegional marketing
Compliance / regulatoryVariesE.g., 150 air-mile radius for trucking

Frequently Asked Questions

Can I use this tool for actual geofencing?
This tool is for visualization and planning. To create a functioning geofence that triggers events on devices, you need a geofencing SDK or platform integrated into a mobile app.
What file format should I export for geofencing platforms?
KML is the most widely supported format for geographic data. Most geofencing platforms and GIS tools can import KML files. Export your radius from our tool and import it into your development environment.
What's the minimum geofence size that works reliably?
For GPS-based geofencing, 100 meters is generally the minimum for reliable triggering. Smaller geofences can work with Bluetooth beacons or Wi-Fi positioning. Urban areas with tall buildings may require larger geofences due to GPS signal interference.

Plan Your Geofence

Use our free radius tool to visualize and plan geofence boundaries. Export as KML.

Open the radius tool
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