Coordinate Converter
Convert geographic coordinates between decimal degrees (DD), degrees-minutes-seconds (DMS), UTM, and geohash, entirely in your browser.
- Choose the format your coordinates are in: Decimal degrees, DMS, UTM, or geohash.
- Type or paste the value. Latitude must be between -90 and 90, longitude between -180 and 180; UTM zones run 1–60.
- Press Convert. All four notations appear under the result.
- Use Copy or CSV to export. Sample loads a demo for the selected format; Clear resets both.
- Four notations: DD, DMS, UTM, and geohash are all convertible to each other.
- Hemisphere letters: N/S/E/W suffixes are accepted alongside signed values.
- Adjustable geohash: choose 1–12 characters of output precision.
- Deterministic: identical input always produces identical output, in your browser.
Developers, GIS hobbyists, and mapping workflows regularly juggle coordinates in several notations. This tool converts between them with the WGS 84 datum used by GPS and virtually all web maps, and does it without a network round trip — paste a coordinate and get the other three forms instantly.
- UTM output uses the zone implied by the longitude and a band letter derived from latitude; it is WGS 84 / UTM, not a local grid like OSGB or Gauss-Krüger.
- DMS input without N/S/E/W letters assumes the first value is latitude — always include the letters when a sign alone is ambiguous.
- Geohash is lossy: a short hash decodes to the center of a large cell, so round-tripping does not reproduce the original point.
- All processing is client-side; nTropi does not upload the contents of this tool.
Which coordinate formats are supported?
Latitude/longitude pairs in decimal degrees (51.5072, -0.1276), degrees-minutes-seconds (51° 30' 26.5" N, 0° 7' 39.4" W), UTM (33N 448251 5411932), or geohash (u33dc0). Pick the matching input format and press Convert.
How do I use this converter?
Select the format your coordinates are in, type or paste the value, and press Convert. Use Sample to load a demo, Clear to reset, and Copy or CSV to export the converted result.
Does my data leave the browser?
All conversions run entirely in your browser using the WGS 84 datum. Coordinates are never uploaded to nTropi servers for this tool.
How accurate is the conversion?
Geohash is a lossy encoding: each character trades precision for a smaller string, and decoding a short hash gives the center of a large cell rather than the original point. DMS and UTM conversions are exact to the displayed digits.