Free, no sign-up, runs entirely in your browser. Pick any country, region, or subregion and get its bounding box — west/south/east/north coordinates as a copy-ready array, WKT polygon, or GeoJSON feature.
[-171.7911, 18.9162, -66.9647, 71.3578]
POLYGON((-171.7911 18.9162, -66.9647 18.9162, -66.9647 71.3578, -171.7911 71.3578, -171.7911 18.9162))
{
"type": "Feature",
"properties": {
"name": "United States"
},
"bbox": [
-171.7911,
18.9162,
-66.9647,
71.3578
],
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-171.7911,
18.9162
],
[
-66.9647,
18.9162
],
[
-66.9647,
71.3578
],
[
-171.7911,
71.3578
],
[
-171.7911,
18.9162
]
]
]
}
}Build a free dotted map of United States — pick colors, dot size, and background, then export as PNG right away.
Build a dotted map of United StatesA bounding box is the smallest rectangle that fully contains a shape, described by its four extremes: the westmost and eastmost longitudes, and the southmost and northmost latitudes. For a country or region, that means the box that just fits around every point of its borders. Bounding boxes are the standard way to describe "where on the map" a place is without shipping its full outline — most mapping APIs, tile services, and geocoders (Overpass, Nominatim, Mapbox, Leaflet's fitBounds, and similar tools) accept a bounding box directly.
This tool computes the bounding box straight from the same country, region, and subregion boundary data used to draw the dotted maps on this site — so the box you copy lines up with the outline you'd actually see if you generated a map of that place. Countries are read directly from their polygon coordinates; regions and subregions (continents like Africa or groupings like Western Europe) are the union of every country inside them.
Use the array format ([west, south, east, north]) for GeoJSON bbox fields, Overpass API queries, or Mapbox/ MapLibre fitBounds calls. Use the WKT polygon for spatial databases like PostGIS. Use the GeoJSON feature when you need a droppable object with geometry attached — for example to preview the box on a map or feed it into a GIS tool. Coordinates are rounded to four decimal places (about 11 meters of precision), which is plenty for design and layout work but not for survey-grade measurement.
One caveat worth knowing: a handful of countries and territories cross the antimeridian (the 180° line), including Russia and Fiji. For those, a simple min/max bounding box spans nearly the full -180° to 180° longitude range rather than hugging the landmass tightly — that's an inherent limit of describing a wraparound shape with a single rectangle, not a bug in the data.