Explore free map calculators, geographic coordinate utilities, and local file conversion tools.
Map Radius Tool
Draw a geodesic radius around any point and measure area, perimeter and diameter.
Open tool ↗Distance Between Two Places
Measure straight-line great-circle distance and initial bearing between two points.
Open tool ↗Map Area Calculator
Draw a polygon to estimate its surface area and perimeter.
Open tool ↗Latitude Longitude Finder
Find GPS coordinates by clicking the map or granting your browser location access.
Open tool ↗Additional geographic tools
Halfway Point (Great-Circle)
Compute the geographic midpoint between two locations; not a road-meeting place.
Open toolAntipode Finder
Find the point on the opposite side of Earth from any location.
Open toolBearing Calculator
Find initial true bearing and great-circle distance between two points.
Open toolHorizon Distance Calculator
Estimate geometric distance to horizon at a stated observer height.
Open toolMulti-Stop Great-Circle Distance
Measure a sequence of straight-line geographic segments, not driving route mileage.
Open toolDistance Matrix Calculator
Compare great-circle distances between up to 30 coordinates.
Open toolGeographic Center Finder
Find a spherical centroid of points, not a population-weighted center.
Open toolMultiple Radius Map
Display several geodesic radius circles from entered centers.
Open toolMap Drawer
Draw points or area polygons and export geographic geometry.
Open toolGPS Coordinate Converter
Convert latitude and longitude between decimal and DMS forms.
Open toolCSV to Map
Import latitude/longitude CSV and visualize point markers.
Open toolGeoJSON Viewer
Upload and inspect local GeoJSON with safe geometry limits.
Open toolKML Viewer & Converter
View basic KML placemarks, lines and polygon outlines and export GeoJSON.
Open toolGPX Viewer & Converter
View standard GPX waypoints and tracks and export GeoJSON.
Open toolKML to GeoJSON Converter
Convert common KML geometry types into GeoJSON.
Open toolGPX to GeoJSON Converter
Convert GPX points and tracks to GeoJSON.
Open toolGeoJSON to KML Converter
Convert GeoJSON geometry to KML placemarks.
Open toolGeoJSON Points to CSV
Convert GeoJSON point features to latitude/longitude CSV.
Open toolGeoJSON to GPX Converter
Convert GeoJSON points/lines into GPX waypoints/tracks.
Open toolBlank Map Studio
Import GeoJSON boundaries and export an SVG outline map.
Open tool