Swift – iOS – GPS – Coordinates – Lat/Long to DMS

If you have a need for displaying the GPS location information in Degrees, minutes, and seconds (DMS) format these functions will help you out.

func latlon2DMS(latitude: Double) -> String {
        var latitudeSeconds = latitude * 3600
        let latitudeDegrees = latitudeSeconds / 3600
        latitudeSeconds = latitudeSeconds.truncatingRemainder(dividingBy: 3600)
        let latitudeMinutes = latitudeSeconds / 60
        latitudeSeconds = latitudeSeconds.truncatingRemainder(dividingBy: 60)
        let latitudeCardinalDirection = latitudeDegrees >= 0 ? "N" : "S"
        let latitudeDescription = String(format: "%.2f° %.2f' %.2f\" %@",
                                         abs(latitudeDegrees), abs(latitudeMinutes),
                                         abs(latitudeSeconds), latitudeCardinalDirection)
        return latitudeDescription
    }

    func latlon2DMS(longitude: Double) -> String {
        var longitudeSeconds = longitude * 3600
        let longitudeDegrees = longitudeSeconds / 3600
        longitudeSeconds = longitudeSeconds.truncatingRemainder(dividingBy: 3600)
        let longitudeMinutes = longitudeSeconds / 60
        longitudeSeconds = longitudeSeconds.truncatingRemainder(dividingBy: 60)
        let longitudeCardinalDirection = longitudeDegrees >= 0 ? "E" : "W"
        let longitudeDescription = String(format: "%.2f° %.2f' %.2f\" %@",
                                          abs(longitudeDegrees), abs(longitudeMinutes),
                                          abs(longitudeSeconds), longitudeCardinalDirection)
        return longitudeDescription
    }

print(latlon2DMS(latitude: coordLat))
print(latlon2DMS(longitude: coordLong))
latitude.text = latlon2DMS(latitude: coordLat)
longitude.text = latlon2DMS(longitude: coordLong)

Reference: https://stackoverflow.com/questions/27996351/swift-convert-decimal-coordinate-into-degrees-minutes-seconds-direction/50765689#50765689