DDM to DMS Converter
Converts coordinates from degrees decimal minutes to degrees minutes seconds.
Enter DDM 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 degrees-decimal-minutes (e.g. 40° 26.767′).
- Press Convert.
- Read it in DMS, DD and DDM together.
How it works
Converts degrees-decimal-minutes (DDM) to degrees-minutes-seconds (DMS): the whole minutes stay, and the fractional minutes become seconds (×60).
Worked example
40° 26.767′. = 40° 26′ 46.0″ = 40.446117°.
Frequently asked questions
What's the difference between DMS and DDM?
DMS splits the fraction of a degree into minutes and seconds; DDM keeps minutes with a decimal and has no seconds. GPS units often use DDM.
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Cite this tool
Zerdly. (2026). DDM to DMS Converter. Retrieved from https://www.zerdly.com/tools/ddm-to-dms-converter/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.