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Coordinate Converter

Convert between decimal degrees, DMS, UTM and MGRS, and measure distance between points.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Coordinate Converter works

UTM and MGRS use the WGS84 ellipsoid and are checked against a reference library. Distance uses the haversine formula on a sphere.

How to use Coordinate Converter

1. Open Coordinate Converter and paste your text.
2. Choose an operation or option.
3. Review the live result.
4. Copy it or download it.

Tips

• Text never leaves your device, so it is safe for drafts and private notes.

Coordinate Converter FAQ

Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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