GIS Utilities
Coordinate Converter
Convert between Decimal Degrees, DMS, and UTM using WGS84. Ideal for GIS, surveying, and engineering teams.
The Coordinate Converter translates a location between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and UTM using the WGS84 datum. It helps you move between the formats commonly used in mapping apps, survey reports, and engineering tools without losing precision or retyping values by hand.
Conversion results
Outputs update based on your selected input format.
Decimal Degrees
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DMS
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UTM
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What this tool does
The Coordinate Converter translates a location between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and UTM using the WGS84 datum. It helps you move between the formats commonly used in mapping apps, survey reports, and engineering tools without losing precision or retyping values by hand.
When to use this tool
Use it when a data source provides coordinates in a format your software does not accept. For example, a field report might use DMS while your GIS layer expects DD. It is also useful before calculating routes or distances with Distance Calculator, or when validating GPS points from external APIs.
How it works
The tool parses the format you enter, normalizes it into decimal degrees, then converts that value into the other formats. UTM conversion uses the appropriate zone and hemisphere for the coordinate. All conversions are performed locally in the browser with standard formulas and WGS84 assumptions.
Example use case
A survey file lists a site as 37 46 29.6 N, 122 25 9.8 W. Your mapping tool needs DD values, so you paste the DMS pair, convert, and copy the DD output. You can then drop the values into your map and compute distance to a second site using the distance tool.
Use cases
- Convert DMS coordinates from a field report into decimal degrees.
- Translate UTM values before importing into a GIS tool.
- Normalize coordinates before running a distance calculation.
Notes & limitations
Conversions assume WGS84 and do not account for local datums or grid shifts. UTM zones wrap around the globe, so always confirm the zone and hemisphere before sharing results. Small rounding differences can appear when converting back and forth; keep original values for official records.
Precision matters when working at survey scale. If you need sub-meter accuracy, keep extra decimal places and avoid repeated conversions. Store the original source format alongside any converted values so teams can trace where a coordinate came from.
For large datasets, keep a consistent precision policy so joins and filters stay reliable across systems.
