Coordinate Converter

Convert between Decimal Degrees, DMS, Degrees Decimal Minutes, and UTM (WGS84) — instantly, free, no signup.

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Paste a coordinate above to see all formats

Coordinate format reference

Decimal Degrees (DD)

40.712776, −74.005974

The most common format in digital mapping. Each value is a single decimal number. Positive = North/East, negative = South/West.

  • Google Maps & web apps
  • GeoJSON files
  • CSV datasets with lat/lon

Degrees Minutes Seconds (DMS)

40°42′46.0″N 74°0′21.5″W

Traditional surveying and nautical format. Degrees are whole numbers; the fractional part is split into minutes (1/60°) and seconds (1/3600°).

  • Surveying and land records
  • Aviation and nautical charts
  • GPS units (display mode)

Degrees Decimal Minutes (DDM)

40°42.7666′N 74°0.3590′W

Hybrid format: whole degrees plus decimal minutes. Common in Garmin GPS devices and marine navigation software.

  • Garmin handheld GPS
  • Marine GPS chartplotters
  • Geocaching

UTM — WGS84

18T 583960 E 4507523 N

Grid-based system using meters. Each 6° zone has its own easting/northing origin, making distance and area calculations straightforward.

  • GIS analysis (QGIS, ArcGIS)
  • Topographic maps
  • Military and engineering surveys

Frequently asked questions

What coordinate system does GPS use?

GPS devices use WGS84 (World Geodetic System 1984) as their reference datum. Coordinates are typically displayed in Decimal Degrees or DMS. UTM is also based on WGS84. All conversions on this page use WGS84.

How do I convert decimal degrees to DMS?

Take the integer part as degrees. Multiply the decimal remainder by 60 — the integer part is minutes. Multiply that decimal remainder by 60 again to get seconds. Example: 40.7128° → 40° 42' 46.08". This tool does it automatically.

What is UTM and when should I use it?

UTM divides the world into 60 zones (each 6° wide). Coordinates within a zone are in meters — easting (distance from zone's central meridian + 500 000 m) and northing (distance from equator). Use UTM when you need to measure distances or areas accurately in GIS software.

What is the difference between DD and DDM?

Decimal Degrees (DD) expresses everything as a decimal: 40.7128°. Degrees Decimal Minutes (DDM) keeps whole degrees but makes minutes decimal: 40° 42.768'. DDM is common in Garmin GPS units and marine chartplotters.

Can I convert UTM to decimal degrees?

Yes — paste UTM in the format 'zone band easting northing', for example '18T 583960 4507523', and this tool converts it to Decimal Degrees, DMS, and DDM automatically.

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