Geographic Bounding Box Calculator
Compute the latitude and unwrapped longitude extents of a radius around a center point on a spherical Earth of mean radius 6371008.8 m. Longitude bounds may fall outside −180° to 180° when the interval crosses the antimeridian.
Description
Compute the latitude and unwrapped longitude extents of a radius around a center point on a spherical Earth of mean radius 6371008.8 m. Longitude bounds may fall outside −180° to 180° when the interval crosses the antimeridian.
Geographic Bounding Box Calculator: Compute the latitude and unwrapped longitude extents of a radius around a center point on a spherical Earth of mean radius 6371008.8 m. Longitude bounds may fall outside −180° to 180° when the interval crosses the antimeridian.
When to use Geographic Bounding Box
Use this geographic calculation to derive a spherical distance, bearing, destination, or coordinate envelope from well-formed latitude and longitude values.
- Center latitude
- Latitude of the box center in decimal degrees.
- Center longitude
- Longitude of the box center in decimal degrees.
- Radius (m)
- Radius of the circular region in meters.
How Geographic Bounding Box works
Compute the latitude and unwrapped longitude extents of a radius around a center point on a spherical Earth of mean radius 6371008.8 m. Longitude bounds may fall outside −180° to 180° when the interval crosses the antimeridian. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Minimum latitude
- Southern edge of the box in decimal degrees.
- Maximum latitude
- Northern edge of the box in decimal degrees.
- Minimum longitude
- Western edge of the unwrapped interval; may be below −180° across the antimeridian.
- Maximum longitude
- Eastern edge of the unwrapped interval; may exceed 180° across the antimeridian.
- Crosses poles
- True when the circle contains a pole and spans all longitudes.
Limitations and assumptions
- The result depends on the chosen Earth model and longitude handling. Bounding boxes near the antimeridian or poles and long geodesics need special treatment, and altitude is normally omitted.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Check the result on a map and use ellipsoidal geodesics or a suitable projected CRS when accuracy or area preservation matters.
References
-
World Geodetic System — Wikipedia contributors
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