To convert DMS to DDM: DecimalMinutes = WholeMinutes + (Seconds ÷ 60). Example: 48°51'30.24\" → 48°51.504'
DMS to DDM Converter
Could not parse that coordinate.
DD
Decimal Degrees
—
DMS
Deg. Min. Sec.
—
DDM
Deg. Decimal Min.
—
UTM
Univ. Trans. Mercator
—
MGRS
Military Grid
—
Geohash
Base32
—
Plus Code
Open Location Code
—
How to Convert DMS to DDM: Step by Step
- 1 Keep the whole degrees as-is.
- 2 Add the seconds ÷ 60 to the whole minutes.
- 3 The result is your decimal minutes.
- 4 Keep the N/S or E/W suffix.
Worked Example
Input
48°51'30.24"N 2°17'40.20"E
Latitude conversion:
51 + (30.24÷60) = 51.504 → 48°51.504'N
Longitude conversion:
17 + (40.20÷60) = 17.670 → 2°17.670'E
Result:
48°51.504'N 2°17.670'E
Why Convert DMS to DDM?
Garmin GPS defaults to DDM; paper maps and military references use DMS. This conversion is needed when moving between the two systems.
Common Mistakes to Avoid
- ✕ Multiplying seconds by 60 instead of dividing by 60