WGS 84 → DDM

Latitude and longitude to degrees and decimal minutes converter

Convert latitude and longitude to DDM individually or in batches. See decimal-degree input examples, coordinate-order options and rounding notes.

Batch coordinate converter

Enter one WGS 84 coordinate per line as latitude, longitude.

Input example: 51.5072, -0.1276

0 of 100 coordinates

Results use: latitude, longitude order.

Output example: 51°30.432′N, 0°07.656′W

Numeric coordinates are rounded for display: decimal latitude/longitude to up to 6 decimal places, metre-based coordinates to up to 3, DMS seconds to up to 2, and DDM minutes to up to 4.

About this conversion

DDM combines whole degrees with decimal minutes and hemisphere letters, a format common in marine and aviation workflows.

Frequently asked questions

What input is accepted?

By default, enter WGS 84 latitude first and longitude second in decimal degrees. Select Reverse coordinate order to enter longitude first. Latitude must be from −90 to 90 and longitude from −180 to 180.

What output will I receive?

By default, the result shows latitude first and longitude second in DDM with hemisphere letters. Select Reverse coordinate order to show longitude first.

Which axes and units are used?

The input uses decimal degrees and the output uses whole degrees plus decimal minutes. Both default to latitude before longitude; minutes are angular units, not metres.

How are precision and datum handled?

This changes notation only, not datum or source accuracy. DDM minutes are rounded to at most four decimal places.

Where can I use this coordinate system?

DDM can represent WGS 84 positions worldwide.

What should I check?

  • Check that the selected coordinate order matches each input row.
  • Keep latitude from −90 to 90 and longitude from −180 to 180.
  • Choose the required latitude/longitude order for the DDM output.

Is 30.5 minutes the same as 30.5 degrees?

No. 30.5 minutes is 30.5/60 of a degree.

Which value appears first in DDM output?

Latitude appears first by default. Select Reverse coordinate order to show longitude first.