Decimal Degrees to DDM Converter
A free, browser-based converter. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter DD value
Coordinate / angle
Sign
Results
Enter a value and press Convert to see the results in DD, DMS and DDM.
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
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.