If you are completing this tutorial from a public computer in Fondren Library and are logged on using the gistrain profile, follow the instructions below: OPTION 1: Accessing tutorial data from Fondren Library using the gistrain profile Option 1 is best if you are completing this tutorial in one of our short courses or from the GIS/Data Center and Option 2 is best if you are completing the tutorial from your own computer. Obtaining the Tutorial Dataīefore beginning the tutorial, you will copy all of the required tutorial data onto your Desktop. If your personal system configuration varies, you may experience minor differences from the instructions and screenshots. So the coordinates of the Sydney Opera House are: 33° 51′ 31″ S 151° 12′ 51″ E.The following step-by-step instructions and screenshots are based on the Windows 10 operating system with the Windows Classic desktop theme and ArcGIS Pro 2.1.3 software. Latitude is negative, so it's in the South. 0.214167 * 60 = 12.85: the minutes equal 12'.Īll that's left to do is determine the cardinal direction.You will get the amount of seconds = 31". Again, take the decimal part - 0.51666, and multiply it by 60.Here are the seconds.įor example, let's convert the Sydney Opera House coordinates from DD to DMS. If you want to get coordinates in DMS, take only the integer - these are the minutes.If you want to have decimal minutes - here they are! Ignore the third point. Take the integer - these are the degrees.To convert latitude and longitude coordinates in decimal degrees to degrees with minutes and seconds, or degrees with decimal minutes follow these three steps: If you are not using them, the numbers of degrees, minutes, and seconds are separated by spaces instead. Please note that the °, ', " symbols aren't mandatory. Here are some acceptable forms of latitude and longitude coordinates: It's less popular with DMS or DDM.įor example, let's see how to write the coordinates for two places: the Empire State Building in New York - a city located west of the Prime Meridian and in the northern hemisphere - and Sydney Opera House - east of the Prime Meridian and in the southern hemisphere. Remember - don't mix the forms! If you're using letters, values should always be positive.Įxpressing the direction with positive or negative values is common in the DD format of coordinates. For longitude, you can use the letter E or a positive number for the eastern direction, and the western direction can be indicated by the letter W, or a negative number. For latitude, northern directions may be indicated by the letter N or a positive number, and southern directions can be marked with either the letter S or a negative value. To specify the cardinal direction, you can use letters or positive and negative numbers. DMS (degrees - °, minutes - ', seconds - ").Sometimes to help distinguish between latitude and longitude, their respective symbols are included: φ (phi) for latitude and λ (lambda) for longitude. The first rule of writing coordinates is:įirst comes the latitude, then the longitude. Now that you know what is latitude and longitude, let's see how to write coordinates in GPS, our lat long converter, or any other tool. Additionally, with the azimuth calculator, you can estimate the direction you need to point your compass to get from one point to the other! All meridians have the same length - 12,429.9 miles (20,003.93 km).ĭid you know that you can calculate the shortest possible distance between two points of known geographical coordinates using latitude and longitude? Learn more about it in the latitude longitude distance calculator. They extend to the east and west of the Prime Meridian, reaching up to 180 degrees. Lines of longitude, or meridians connect the North and the South Pole. Longitude, on the other hand, refers to a east-west position on the Earth. The maximum value of latitude is 90 degrees - found at the poles. The central line of latitude is called the Equator. It's represented by circles of latitude, or parallels - the lines that go around the globe. It references the north-south position on the Earth. Latitude is the angle between the equatorial plane and the line extending from the center of the Earth to a certain point on its surface.
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