Convert geographic coordinates in both directions. Enter latitude and longitude in decimal degrees (like 39.9042 and -116.4074) to get degrees-minutes-seconds with the correct hemisphere letter — N or S for latitude, E or W for longitude — such as 39°54'15.12"N.
Or paste DMS values such as 39°54'15.12"N and the tool parses the degree, minute, second and direction fields back into a signed decimal number, ready to drop into a map or dataset. Latitude and longitude are handled independently. Everything runs locally in your browser — coordinates are never uploaded.