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Online UTM to Latitude Longitude Converter

Convert UTM (zone, easting, northing) into latitude/longitude in decimal degrees using the WGS84 ellipsoid. Paste one line or run batch conversions—no installs, no API calls.

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Accepted: zone+hemisphere (e.g., 31N) or zone+band (e.g., 31U) + easting + northing. Commas/extra spaces are OK.
Tip: For batch input, output lines match input order.
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Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Supported input examples: 31N 500000 0, 31 U 448251 5411932, or CSV like 31U,448251,5411932.

  1. Paste UTM lines into the input box (one coordinate per line), or fill the fields below.
  2. Click Convert.
  3. Copy the output (decimal degrees; optional DMS).
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Secondary intents covered: Convert a single UTM coordinate to decimal lat/lon, Convert multiple UTM lines in one paste (batch), Handle zone values with band letters (e.g., 31U) or explicit hemisphere (N/S), Validate inputs and catch common UTM formatting mistakes, Copy converted lat/lon output for spreadsheets or GIS tools, Generate a quick maps-ready lat/lon pair, Understand what UTM zone/hemisphere means for conversion, Convert southern hemisphere UTM (false northing) correctly, Troubleshoot wrong zone/hemisphere causing incorrect longitude

FAQ

What UTM format does this converter accept?

Use zone hemisphere easting northing (e.g., 33 N 500000 4649776) or zone+band easting northing (e.g., 31U 448251 5411932).

Does this tool use WGS84?

Yes. The conversion uses the WGS84 ellipsoid and standard UTM scale factor (k0 = 0.9996).

How do UTM bands (like 31U) affect conversion?

The band letter is used only to infer hemisphere (north vs south). The math depends on zone, hemisphere, easting, and northing.

Why is my longitude clearly wrong?

The most common cause is the wrong zone number or hemisphere. Double-check the zone (1–60) and whether the point is in N or S hemisphere.

Can I convert multiple UTM coordinates at once?

Yes—paste one coordinate per line in the input box and click Convert. The output will keep the same order.

What are typical valid ranges for easting/northing?

Easting is usually between ~100,000 and 900,000 meters; northing ranges from 0 to 10,000,000 meters depending on hemisphere.

Is anything sent to a server when I convert?

No. The conversion runs entirely in your browser and does not make network requests.