# Isochrones An isochrone of a location is ''a line connecting points at which a vehicle arrives at the same time'', see Wikipedia. With the same API you can also calculate isodistances, just use the parameter distance_limit instead of time_limit`. Some possible areas in which this API may be useful to you: - real estate analysis - realtors - vehicle scheduling - geomarketing - reach of electric vehicles - transport planning - logistics (distribution and retail network planning) See the [clients](#section/API-Clients) section in the main documentation, and [our API explorer](https://explorer.graphhopper.com/?endpoint=isochrone). ## Compute an isochrone - [GET /isochrone](https://docs.graphhopper.com/openapi/isochrones/getisochrone.md)