Convert latitude and longitude coordinates between DD, DMS, and DDM formats. Free online tool for navigation, mapping, and GIS applications.
PDF includes conversion results with Creative Labs Medical Calculators branding
The visualization above shows the approximate position of your coordinates on a map grid. Latitude lines run horizontally, while longitude lines run vertically.
Choose the format of your input coordinates: Decimal Degrees (DD), Degrees Minutes Seconds (DMS), or Degrees Decimal Minutes (DDM).
Input your latitude and longitude values. Use the checkboxes if your coordinates include direction letters (N/S, E/W).
Click "Convert Coordinates" to transform your coordinates into all three formats simultaneously.
See your converted coordinates and graphical representation. Download results as PDF for later use.
Latitude and longitude are the imaginary lines that form a grid system on Earth's surface, allowing us to pinpoint any location with precision.
Lines of latitude run horizontally around the Earth, parallel to the equator. They are measured in degrees north or south of the equator (0°), ranging from 0° to 90°N at the North Pole and 0° to 90°S at the South Pole.
Lines of longitude run vertically from the North Pole to the South Pole. They are measured in degrees east or west of the Prime Meridian (0°), ranging from 0° to 180°E and 0° to 180°W.
Decimal Degrees to Degrees, Minutes, Seconds: Multiply the decimal portion by 60 to get minutes. Multiply the remaining decimal by 60 to get seconds.
Degrees, Minutes, Seconds to Decimal Degrees: Divide minutes by 60 and seconds by 3600, then add to degrees.
Decimal Degrees to Degrees, Decimal Minutes: Multiply the decimal portion by 60 to get decimal minutes.
Degrees, Decimal Minutes to Decimal Degrees: Divide decimal minutes by 60 and add to degrees.
Decimal Degrees (DD): Expresses coordinates as decimal numbers (e.g., 33.8568° S, 151.2153° E).
Degrees, Minutes, Seconds (DMS): Expresses coordinates in degrees, minutes, and seconds (e.g., 33° 51' 24.48" S, 151° 12' 55.08" E).
Degrees, Decimal Minutes (DDM): Expresses coordinates in degrees and decimal minutes (e.g., 33° 51.408' S, 151° 12.918' E).
All three formats can express coordinates with the same precision. The choice depends on your application: DD is common in digital mapping and GPS, DMS is traditional in navigation and surveying, and DDM is often used in marine navigation.
Always write latitude first, then longitude. Include direction indicators (N/S, E/W) unless using signed coordinates (positive for N/E, negative for S/W). Use the appropriate symbols for degrees (°), minutes ('), and seconds (").
Yes, negative values are often used in digital systems: positive latitude for North, negative for South; positive longitude for East, negative for West.