Yutao Liu GIS Tools

Coordinates

Batch coordinate converter

Paste or upload a CSV, choose a conversion, and download the result.

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How to use

One pair per line: decimal 40.71, -74.01 or DMS 40°42'46"N 74°00'22"W. Without headers, latitude comes first; switch the order control if your list is lon, lat.

CSV headers may be lat/lon. Reverse UTM uses easting, northing, zone; MGRS is one grid per line. Conversion stays in the browser.

If many rows fail with latitude outside ±90°, longitude is probably first — use Swap and convert. Downloads are UTF-8 CSV (BOM for Excel) or GeoJSON.

These tools only assist with geographic data processing. Outputs are for technical reference and must not be used for survey acceptance, construction, or official cadastral demarcation. For critical work, rely on professional GIS software and licensed survey products. All computation runs locally in the browser; files are not uploaded. This site does not operate a public map tile service, does not provide a geography API, does not parse classified coordinates, and does not display militarily sensitive locations. The basemap is OpenStreetMap.