Decimal Degrees to DDM Converter
Converts coordinates from decimal degrees to degrees decimal minutes.
Enter DD value
Results
Enter a value and press Convert to see the results in DD, DMS and DDM.
Before you rely on this: First-pass guide only. Verify safety-critical or regulated work against the relevant standards, your project requirements and a qualified professional.
How to use this calculator
- Enter the coordinate in decimal degrees (e.g. 40.446195).
- Press Convert.
- Read the degrees-decimal-minutes value.
How it works
Converts decimal degrees (DD) to degrees-decimal-minutes (DDM): the whole number is the degrees, and the decimal part × 60 gives the decimal minutes.
Worked example
40.446195°. = 40° 26.7717′.
Frequently asked questions
Which devices use DDM?
Marine GPS plotters and many handheld GPS units default to degrees-decimal-minutes.
Related tools
- DDM to Decimal Degrees Converter
- DMS to DDM Converter
- Latitude/Longitude Validator (Range & Format)
- Signed vs Cardinal Coordinate Notation Converter
- DDM to DMS Converter
- Latitude and Longitude Converter
Explore more in Surveying, Coordinates, GIS & CAD.
Cite this tool
Zerdly. (2026). Decimal Degrees to DDM Converter. Retrieved from https://www.zerdly.com/tools/dd-to-ddm-converter/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.