DDM → WGS 84

Degrees and decimal minutes to latitude and longitude converter

Convert DDM coordinates to decimal latitude and longitude individually or in batches. See accepted notation, coordinate-order options and rounding notes.

Batch coordinate converter

Enter one DDM coordinate per line as latitude, longitude, including hemisphere letters.

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

0 of 100 coordinates

Results use: latitude, longitude order.

Output example: 51.5072, -0.1276

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

This route parses WGS 84 degrees and decimal minutes with hemisphere letters and returns the same position in decimal degrees.

Frequently asked questions

What input is accepted?

By default, enter latitude followed by longitude as whole degrees plus decimal minutes and N/S or E/W. Select Reverse coordinate order to enter longitude first. Decimal minutes must be at least zero and below 60.

What output will I receive?

By default, results show WGS 84 latitude first and longitude second in decimal degrees. Select Reverse coordinate order to show longitude first. Displayed decimal places do not add accuracy to the source.

Which axes and units are used?

DDM input and decimal-degree output are angular WGS 84 coordinates. Both default to latitude before longitude; decimal minutes are angular units, not metres.

How are precision and datum handled?

This changes notation only, not datum or source accuracy. Decimal-degree results are rounded to at most six decimal places.

Where can I use this coordinate system?

DDM can represent WGS 84 positions worldwide.

What should I check?

  • Check that the selected input order matches each DDM row.
  • Keep decimal minutes from zero up to, but not including, 60.
  • Use hemisphere letters that agree with any coordinate signs.

What DDM notation is accepted?

Enter whole degrees and decimal minutes with N/S and E/W hemisphere letters; symbols or ordinary spaces are accepted.

Does DDM use WGS 84 here?

Yes. This converter interprets DDM as a WGS 84 format.