How it works
Paste coordinates, one point per line, and the tool reads them, draws them on a map and exports them as GPX, KML or GeoJSON. It also totals the path distance and shows a bounding box. Conversion happens on your device — the points are never uploaded.
37.5665, 126.9780 ⇄ 37°33′59.4″N 126°58′40.8″E
Accepted formats
- Decimal degrees:
37.5665, 126.9780— longitude first is detected and swapped automatically. - Degrees, minutes and seconds:
37°33′59.4″N 126°58′40.8″EorN 37 33 59.4 E 126 58 40.8. - Degrees and decimal minutes:
37 33.99 N, 126 58.68 E. - Labels: start a line with a name and a comma, tab or semicolon to keep it —
Seoul, 37.5665, 126.9780.
Map and privacy
The map tile layer is loaded from OpenStreetMap, and the map library is fetched only when you press Show on map — so ordinary visits download nothing extra. Once the map is loaded your browser requests tiles directly from OpenStreetMap, which sees your IP address like any website you open.
Converting coordinates, measuring distance or exporting a file never touches the network.
Exports
- GPX: the standard for GPS devices, watches and hiking apps. Each point becomes a waypoint.
- KML: opens in Google Earth and GIS software.
- GeoJSON: the standard format for web maps and APIs.
- CSV / JSON: for spreadsheets and code, with decimal coordinates and DMS in the result table.
Standards and sources
- WGS 84 coordinate reference system (EPSG:4326), used by GPS and OpenStreetMap
- Distance uses the haversine formula on a spherical Earth of mean radius 6371.0088 km
- GPX follows the GPX 1.1 schema (Topografix); KML follows the OGC KML 2.2 standard; GeoJSON follows RFC 7946
Last reviewed October 7, 2026
Frequently asked questions
Which coordinate formats can I paste?
Decimal degrees (37.5665, 126.9780), degrees-minutes-seconds (37°33′59.4″N 126°58′40.8″E), and degrees with decimal minutes (37 33.99 N). Longitude-first input is detected and swapped automatically.
Can I keep the place names?
Yes. Start a line with a name followed by a comma, tab or semicolon and it is used as the point label in the result, the map and the exported file.
Which export format should I use?
GPX for GPS watches, phones and hiking apps; KML for Google Earth; GeoJSON for web maps and mapping APIs; CSV or JSON for spreadsheets and code.
Does the map load automatically?
No. The map library and tiles load only when you press “Show on map”, so pages stay fast and no third party is contacted during a normal visit.
How accurate is the distance?
It uses the haversine formula on a mean Earth radius of 6371.0088 km, which is accurate to better than 0.5% for typical distances. For long geodesic lines, specialist tools may differ slightly.