Online Converters



Our free online converters let you batch geocode ZIP codes and UK postcodes, convert GPX to KML, SHP to KML and KMZ to KML, convert UTM to lat lon, and much, much more…

We developed the technologies behind these converters for our own products and decided to share them for others to use freely. The Batch converter is currently limited to 50000 rows, and the KML converter approximately 32Mb, if you require more then you can contact us. And if we helped, let us know on Twitter: @Mapsdata or via email.

Besides these online converters, we also have APIs to a range of common geographical look-up tables and conversions. Email us for more details

Batch Geocoder & Converter

Geocode and Convert Spatial Data

Convert to lat-lon by dragging and dropping your file. Instructions.

Convert US ZIP codes, British postal codes, as well as degrees minutes and seconds, UTM, MGRS and BNG into decimal latitude & longitude. The system also recognizes 120,000 cities, 240 countries & territories, and the US states, in which case the capital’s coordinates are given.

KML Converter

Convert your files to KML

Convert Excel to KML, CSV to KML, SHP to KML, GPX to KML, KMZ to KML or DXF to KML by dragging and dropping your file. Instructions.

Drag and drop your file for quick KML conversion.
Our converter provides free file conversion from Excel to KML, CSV to KML, SHP to KML, GPX to KML, KMZ to KML and DXF to KML.


 

Individual converters

You can also use the drag and drop boxes below to geocode or convert your data. Make sure your data is structured correctly (instructions) and wait a few moments for the result.
To geocode or convert a single entry click here.
Our individual KML converters are here.

Convert ZIP codes to lat-lon

Batch geocode US ZIP codes by dragging and dropping your file. Use the 5-digit ZIP codes, without state abbreviation, e.g. 20500, in a column titled ZIP.

Convert postcodes to lat-lon

Batch geocode UK post codes by dragging and dropping your file.
Use full postcodes, e.g. EC2A 4BX, in a column titled Postcode.

Convert DMS to decimal

Convert coordinates in degrees, minutes and seconds to decimal by dragging and dropping your file. Use two columns titled Latitude and Longitude.

Geocode countries

Get the decimal latitude and longitude for over 240 countries and territories (coordinates of the capital) to enable mapping. Use country names, 2-letter or 3-letter ISO codes and drag and drop your file. Use one column entitled Country.

Geocode US states

Get the decimal latitude and longitude for US states (and DC) to enable mapping. Simply use state names, or 2-letter abbreviations. The coordinates of the state capital are returned. Use one column entitled US State.

Geocode cities

Get the decimal latitude and longitude for over 120,000 cities throughout the world to enable mapping.
Use two columns: City and Country, adding a US State column if the data features US cities.

Convert UTM to lat-lon

Convert Universal Transverse Mercator (UTM) coordinates to lat-long by dragging and dropping your file. Use one column entitled UTM listing the full coordinates, e.g. 30U 70198mE 5711981mN.

Convert MGRS to lat-lon

Convert Military Grid Reference System (MGRS) coordinates to lat-lon by dragging and dropping your file.
Use one column entitled MGRS listing the full coordinates, e.g. 42SUA5246314470.

Convert BNG to lat-lon

Convert British National Grid (BNG) coordinates to latitude and longitude by dragging and dropping your file.
Use two columns entitled Easting and Northing.

 



 

Single entry converter

Use this single entry converter to obtain the decimal latitude and longitude of your chosen location, using any of the 7 formats supported.

 



 
You can also use the drag and drop boxes below to convert a variety of files into KML.

Convert Excel to KML

Convert xls to kml by dragging and dropping your file. Please use decimal degrees and place the coordinates in two columns titled “latitude” and “longitude”.

Convert CSV to KML

Convert csv to kml by dragging and dropping your file. Please use decimal degrees and place the coordinates in two columns titled “latitude” and “longitude”.

Convert SHP to KML

Convert your shapefile to kml by dragging and dropping a zipped file containing .dbf, .sbn, .sbx, .shp, and .shx, etc. We support all native projections.

Convert GPX to KML

Drag and drop your GPX file from your GPS device or mapping programme.

Convert KMZ to KML

Convert your kmz to kml file by dragging and dropping it into the space below.

Convert DXF to KML

Convert your dxf to kml by dragging and dropping or by selecting from your file directory.

 



 

Coordinates Converter Instructions

The converters are extremely easy to use. Simply prepare a spreadsheet or CSV containing the geocoding information you would like to convert in a column titled appropriately and drag and drop it into the converter. Check the instructions below depending on the type of geocoding information your want to convert into decimal latitude and longitude. Each type also provides an example of a convertible data set using that type of geocoding to download.

US ZIP Codes

To convert ZIP codes to latitude and longitude, simply use one column titled “ZIP” and use the the full 5-digit ZIP code, without the state abbreviation, e.g. 20500.

A sample data set using ZIP codes is available for download by clicking hereThis sample lists the location of farmers’ markets in the US, based on government data (source).

MGRS
To convert MGRS (Military Grid Reference System) to latitude and longitude the title of the column should be “MGRS” and the full MGRS information, e.g. 42SUA5246314470, should feature in the cell.

A sample data set using MGRS is available for download by clicking hereThis sample lists incidents in Afghanistan, and is based on data from the Guardian’s website (source).

UTM
To convert UTM coordinates (Universal Transverse Mercator) into decimal latitude and longitude the title of the column should be “UTM” and the full coordinates, e.g. 30U 70198mE 5711981mN, should feature in each cell.

A sample data set using UTM coordinates is available for download by clicking hereThis sample lists the position of the 50 highest peaks in California, based on data from a mountaineering website (source).

UK Postcodes
To convert UK postcodes to latitude and longitude, simply use one column titled “Postcode” and use the full postcodes, e.g. EC2A 4BX.

A sample data set using UK postcodes is available for download by clicking hereThis sample lists the location of 50 polling stations in Westminster, London, based on official data (source).

City Names
Our system recognizes over 120,000 cities throughout the world and can provide their latitude and longitude. The full list is available for reference here. If having problems, please search the list to check whether the place in question is present and spelled the same way in our database.

If your data does not include US cities, use two columns titled “City” and “Country” and provide both the city name in the form listed in our database and the country name or code, as described in the container above. Add a third “US State” column if the data includes US cities, filling it as explained in the container below, and leaving it blank for the non-US cities in the data.

A sample data set using city names is available for download by clicking hereThis sample lists the 50 most populated cities in the world according to this Wikipedia article.

US State Names and Codes
To convert US states to latitude and longitude, the title of the column should be “US State”, and state names or abbreviations can be used (e.g. Alabama, or AL). The coordinates given are for the capital.

A sample data set using US states is available for download by clicking hereThis sample lists tax return information for each state based on US government data (source).

DMS Latitude and Longitude
To convert non decimal degrees into decimal ones, simply use two columns titled “Latitude”, “Longitude” or “lat”, “lon”.

• Degrees, Minutes, Seconds should be presented as 25°11’49.66″ and 55°16’27.52″

• Degrees, Decimal Minutes should be presented as 25° 11.828′ and 55° 16.459′

• Note that there is no need to use N, S, E or W.  If a point occurs South of the equator or in West of Greenwich, i.e. S or W, then please use the minus “-” symbol. If the latitude and longitude for your data use N, S, E and W instead, click here to find out how to convert it.

A sample data set using latitude and longitude is available for download by clicking here.

Country Names and Codes
To convert countries and territories to latitude and longitude, you can use names as well as 2-letter and 3-letter ISO country codes for over 240 countries and territories. The coordinates given are for the capital.

Simply title the column appropriately, with “Country”, “ISO2 Code” or “ISO3 Code” and use either the names, 2-letter codes, or 3-letter codes. For example: Argentina, AR or ARG.

A sample listing two and three-letter ISO codes as well as the different names recognized by the system is available for download by clicking here.

British National Grid (BNG)

To convert BNG coordinates (British National Grid — formerly known as the National Grid Reference or NGR), use two columns titled “Easting” and “Northing”.

A sample data set using BNG is available for download by clicking here. This sample lists vehicle crime incidents in London, based on UK Police data (source).

 



 

KML Converter Instructions

Our KML converter is extremely easy to use.

For Excel files (.xls) or CSV, simply make sur you use decimal degrees (use our coordinates converter if necessary) and place the coordinates in two columns titled “latitude” and “longitude”.

For shapefiles, drag and drop a .zip archive containing the necessary files (.dbf, .sbn, .sbx, .shp, and .shx, etc.).  We support all native projections.