Service Area Radius Calculator

The service area radius calculator turns one base location and a chosen distance into the exact map boundaries your business actually serves. Drop in your shop or office coordinates, set a radius in miles or kilometers, and you instantly get the bounding box, the total area covered, and the cardinal edge points (north, south, east, and west) sitting right on your circle. It is built for local businesses that need a defensible answer to a simple question: how far out should we really go?

Why does a service area radius calculator matter for local SEO and paid ads? Because guesswork costs money. Set your radius too wide and you burn ad budget on leads you cannot reach profitably, while diluting the location relevance that helps you rank. Set it too tight and you leave nearby neighborhoods, and revenue, on the table. The bounding box and edge coordinates here plug straight into Google Ads radius targeting, service area pages, and geo grid planning so your targeting matches the ground truth of how far your crews or deliveries actually travel.

Use it to right-size a new territory, sanity check a competitor's coverage, or split one large area into tighter zones for separate landing pages. When you are ready to see how you actually rank across that whole footprint on a real geo grid, ProMapRanker can map it for you, start free.

FAQ

How do I find my base latitude and longitude?

Open Google Maps, right click your business location, and the first row of the popup shows the latitude and longitude. Copy that pair and paste it into the coordinates field here, or split the two numbers into the separate latitude and longitude boxes. Use decimal degrees (like 40.7128 and -74.0060), not degrees and minutes.

What is the bounding box and why would I use it instead of the radius?

A radius describes a circle, but many tools and ad platforms accept a rectangular area defined by its minimum and maximum latitude and longitude. The bounding box is that rectangle drawn tightly around your circle. It is handy for map embeds, database queries that filter by coordinate range, and any system that wants corner points rather than a center plus distance.

Is the list of covered cities exact?

No, and that is by design. This tool runs entirely in your browser with no map database, so it gives you a planning range for how many nearby towns to expect based on the area covered, not a verified city list. Treat it as a quick gut check, then confirm the real places inside your boundary with a mapping tool before you finalize ad targeting or build out location pages.