Convert between decimal degrees and degrees-minutes-seconds.
Last updated: June 2026 | By Patchworkr Team
DD uses positive for N/E and negative for S/W. DMS requires valid minutes and seconds.
Decimal degrees express coordinates as a single decimal number. DMS breaks them into degrees, minutes, and seconds.
Can I mix negative signs with N or E?
No. The parser rejects that combination because it creates conflicting directions.
Are minutes and seconds bounded?
Yes. Minutes and seconds must each be between 0 and 59.999…
Does the calculator keep precision?
Decimal output is rounded to 6 places, and DMS seconds are shown to 2 decimals.
What if the input is invalid?
Malformed coordinates are rejected rather than being silently converted.
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