If you have a long list of geographic coordinates to work with, a Microsoft Excel spreadsheet is sure to be useful. There are three basic Excel tools that can work for you, no matter how you want to manipulate your geographic coordinates. You’ll need to know how to calculate the distance between two latitude and longitude points, how to convert latitude and longitude data to decimal degrees, and finally, how to geocode latitudes and longitudes.
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How to Calculate the Distance Between Two Coordinates in Excel
In an example of how to calculate the distance between two coordinates in Excel, we’ll seek to measure the great circle distance. We’ll note that latitude and longitude are denoted in degrees, minutes and seconds.
Excel should automatically zoom to the area where your data is (in this example, the Central African Republic) and select a sample if there is too much data. Social studiesmr. mac's 6th grade. A few tips: You can substitute the Latitude/Longitude by an address, using the Locations field. Geocode (get latitude and longitude) for address data in Microsoft Excel, with Bing Maps and the Excel add-in CDXZipStream.
Convert Latitude and Longitude to Decimal Degrees in Excel
Everything, including something as complicated as degrees, minutes, and seconds, can be converted into decimals. The degrees part remains the same, but minutes and seconds need to be converted into their percentage of a degree and combined. There are 60 minutes in a degree and 60 seconds in a minute (which means 3,600 seconds in a degree). Therefore, divide minutes by 60 and seconds by 3,600.
The overall formula:
Total Degrees (in the decimal form) = Deg + [Mins / 60] + [Seconds / 3600]
…So About That Distance
Now that you have the latitude and longitude values in decimals, you just face the equation for the nautical miles between Timbuktu and Casablanca, noted underneath.
Nautical Miles= ACOS [(sin(Lat_place_1*PI()/180)*sin(Lat_place_2*PI()/180)+
That three thousand number, in the end, is the radius of Earth, in, Nautical Miles. Even if you were to substitute it with the radius of a sphere, assuming the Earth is spherical, at 3437.7468 NM, you will not be near the real, accurate distance.
Geocode Latitude and Longitude in Excel
Geocoding is the conversion of street addresses to latitude and longitude data that can be mapped. Now, there are two ways to geocode latitude and longitude from an Excel spreadsheet: the hard way and the easy way.
We’ll cover the hard way first, which is what you’ll need if you require the coordinates to live in your Excel document. You’ll need to write the Visual Basic (VBA) script to make a call to an external geocoder, or find the code elsewhere, such as this GitHub repo. There are a number of geocoder APIs and some geocoders are faster than others.
The Google Maps Geocoding API is a common choice and this is the API we’ll call in the easy option. However, it also can work directly within Excel. Armed with the code you’ve written or discovered, here are the steps to deploy geocoding within Excel.
Step 1: Find the Developer tab in your version of Excel.
Step 2: Look for the “Visual Basic” tab. This opens the development window.
Step 3: Insert —> Module. The new module will hold your function.
Step 4:Here is where you copy and paste your code.
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address In China
Step 5: We need to add references now. So, Tools —> References. Make sure to check the Microsoft XML v6.0. CLICK OK.
Step 6: Press CTRL / CMD + S. Save as type —> Excel Add-In. Now you get to name your function. The extension has to be .xlam. Time to close all Excel files.
Step 7: Open a new file. File —> Options —> Add-Inns. In the Manage box, choose Excel-Add Ins.
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address In India
Step 8: Press Go. Choose your function in the window that appears by ticking in the box. Press OK.
Step 9: VOILA. Now you could just use the new function you created, like any other function.
After you are done retrieving the values, copy and paste them elsewhere, off of the sheet with the calculations. Then delete the function calls because otherwise when you reopen this file, the Google API will start to be pinged again. That will eat up several minutes before the file is open. To optimize Google resource usage, take a 10-second break between addresses.
That’s a lot of steps, and assumes you’ve found some code to try out. Next, we’ll see the easier way to geocode your Excel data. It’s fast and reliable, but it won’t import the coordinates into your Excel file. On the other hand, the excel geocoding tool is copy-paste simple and gets you an interactive map.
Create a Map with Excel
There are a number of ways to create maps with Excel data. Perhaps the easiest is to just copy and paste your spreadsheet data into our map-making tool. Doing so turns your Excel document into a beautiful, interactive map like the one below.
View Example Latitude/Longitude Map in a full screen map
To make your own map based on latitude and longitude coordinates, separate the coordinates into their own columns within your spreadsheet.
Then, select and copy the rows and columns of your spreadsheet (Ctrl+C command or Cmd+C on Mac) and navigate to batchgeo.com. Paste (Ctrl+V or Cmd+V on Mac) in your data, and you’re done!
Whether you want to make a latitude and longitude map or create your own virtual wedding guide for your guests, BatchGeo provides a free and easy way to make beautiful web maps that are ready to be saved and shared.
Many mapping tools (and other applications like phones and GPS units) are able to create maps directly from columns containing latitude and longitude data. To use these in Excel-based mapping tools sometimes requires you to modify or transform the data. In this article we're going to go through a number of ways that you can quickly manipulate the latitude and longitude data you already have, and show accurate, high performing maps with 10000s of points.
We've enabled comments for this discussion thread. Scroll to the bottom to ask questions and make comments.
Latitude and longitude are used to locate points on the globe as a pair of numbers. Latitude represents how far north/south the point is and longitude represents how far east/east the point is. The numbers are often expressed in degrees because the earth is approximately a sphere. Because we can travel all around the world we use 360 degrees of longitude for a full circle and 180 degrees of latitude for the half circle of north-south. To make life more interesting, we don't use 0-360 longitude and 0-180 degrees latitude though. We use -180 to 180 degrees longitude and -90 to 90 degrees latitude.
0 degrees longitude passes through the 'prime meridian' of Greenwich, in south west London, England. Points west of this are negative longitude, points east are positive. 0 degrees latitude is the equator with positive numbers representing the northern hemisphere and negative the southern hemisphere.
See https://en.wikipedia.org/wiki/Geographic_coordinate_system for more of the technical details!
Numeric format conversions
The most common step necessary to get existing longitude latitude data successfully into maps is to convert the the values into a format that the Excel maps can understand. Here are some of the most common conversions:
Converting from degrees, minutes and seconds to decimal degrees
Probably one of the most common formats for latitude and longitude is the degree format of degrees minutes seconds (DMS). For example (38.897680 , -77.03653) becomes (38° 53' 51.648' N 77° 2' 11.508' W). Degrees, minutes and seconds breaks down angles a little bit like the hands of the clock into hours, minutes and seconds (hence the name). To show these in many mapping tools such as Visual Crossing requires us to convert from DMS to decimal degress using the formula:
Microsoft has created a series of macros that provide a function for performing the conversion - see https://support.microsoft.com/en-us/help/213449/how-to-convert-degrees-minutes-seconds-angles-to-or-from-decimal-angle.
Your data contains prefixes rather than negative and numbers (eg 38.897680N , 77.03653W)
Sometimes you will encounter latitude, longitude data such as (38.897680N , 77.03653W). The N indicates 'North of the equator' and the W indicates 'West of the prime meridian'. In these cases we need to remove the letter suffixes and replace them with negative values where appropriate. Negative values are for 'West' and 'South'. Therefore we use (38.897680 , -77.03653) as our final result. An Example Excel formula to clean up the 'W' and 'S' suffix would be:
Your data contains values that aren't in the right range
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address Number
As we mentioned above, most mapping tools support latitudes from -180 to 180 longitude and -90 to 90 degrees latitude. If your data is between 0 to 360 and 0 to 180 degrees, simply subtract 180 from the longitude and 90 from your latitude! Sometimes you may encounter data that goes beyond the range. For example, some latitude and longitude data may be expressed in radians rather than degrees or other differences related to the projection of the data.
Making sure the values have enough precision
One of the most common reported problems users have is when a map of points resembles this display:
The real map should look like this.
This problem occurs because the values don't have enough precision - typically you want at least five or six digits after the decimal point to produce an accurate business map (some highly accurate use cases may require even greater precision!) The rounding of the numbers causes the values to snap to a grid-like appearance like the first screenshot. The fix for this common problem is to review your data to ensure that you have at least 5 digits after the decimal point.
How can you use longitude & latitude values in Excel? Try Location Analysis in Excel or try retrieving historical and forecast weather data
Excel Mac 2016 Get Longitude Latitude Coordinates For An Address Change
Once you have your data in the right format with enough precision you will be able to construct high perfoming maps in many applications. If you are looking to investigate location demographics or weather trends, consider using Location Analysis or Weather Data.