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Bulk Processing

Use the text box below to input bulk postcodes and find the 'as the crow flies' distances between them. There is a limit of 200 pairs at a time. Add them in the format postcode1,postcode2 per line. For Example TR20 8QJ,KY5 0AT. Once processing is complete, the distance is appended as a 3rd column on the CSV list. You can toggle the units (miles/km) using the switch above.

If any postcodes are not found, the tool will output the distance as NF (1st PC NF) or NF (2nd PC NF) to indicate it was the first or second postcode at fault

How to Use Postcode Tool

Type in the first and second postcode then click the Show button. The map will then display the location of the two postcodes and also show the routes for:

• As the crow flies - the straight distance between the points
• By land transport - by car and/or boat

You will also see the distance displayed below the map for the distance as the crow flies and also by land transport. You can then type in more postcodes and click the show button to see more distances.

Note : This Postcode distance finder will measure the distance between full UK Postcodes.

Format of Outward Code / Out Code

Use the format "A(A)0(0)(A)", where:

• A is a character
• 0 is a digit
• () means optional

Format of Full UK Postcode

Use the format "A(A)0(0)(A)_0AA", where:

• A is a character
• 0 is a digit
• () means optional
• _ is a space

So any input of 2,3 or 4 characters is assumed to be an Out Code format and anything longer than 4 characters is assumed to be a full UK postcode.

Uses of This Postcode Tool

This tool has a wide range of possible uses from delivery estimation to point to point measurement. If you know of a useful application of this tool, let us know.

Problems or Suggestions

If you notice any errors or have suggestions for further development, then please contact freemaptools.

Future Ideas

• Search for Outcode (first part) as well as full postcodes

Version History

• 8th February 2021 : Bug fix - Bulk upload > An identical pair of postcodes caused the first instance to have the distance appended multiple times
• 30th September 2018 : Bug fix - start/end of driving route was the wrong way round
• 27th September 2018 : Bug fix - Bulk upload now copes with invalid postcodes better. That row fails, but the next rows still process
• 26th September 2018 : Bug fix
• 25th September 2018 : Bug fix
• 24th September 2018 : Bug fixed on Bulk Processing
• 24th September 2018 : Switched to Leaflet maps
• 18th September 2018 - Changed back end service provider. Bug fixed a 'not found' postcode in the right hand textbox displayed an error (wrongly) that it couldn't find the first postcode
• 1st August 2018 - Improvement to handling of postcodes that are not found
• 9th May 2016 - Small update to Bulk Processing - prevent issue resulting from new line at end of data
• 21st April 2016 - New Bulk Processing function to process postcode distances in bulk
• 8th January 2015 - New function that generates link to share the result
• 5th November 2013 - Implemented Google Maps API V3 including new google.maps.DirectionsService
• 20th September 2011 - Resolved issue where a postcode not found in the right hand textbox would be reported as not finding the value of the left hand textbox
• 9th October 2008 - Resolved issue when Show button is clicked multiple times and distance keeps changing. Improved automatic zoom function
• 23rd December 2007 - Added enter to submit function
• 22nd December 2007 - Improvements to back end storage system and some of the text on this page
• 16th December 2007 - Version 1 of functional system completed
• 15th December 2007 - Page created

Relevant Links

Information on UK Postcodes

Just to say thank you this such a useful resource.
By mypinknee on 2nd March 2023

How do I extract the data from Bulk Processing?
By Oakley on 16th February 2023

Hi Jmac, for cost reasons this is something that is not feasible to implement.
By Free Map Tools on 3rd February 2023

Great potential but something I cannot use as I need to see distance by Land Transport as opposed to as the Crow Flies for the bulk processing. Perhaps you could consider allowing Land Transport for Bulk Processing in a future update?
By Jmac on 3rd February 2023

Almost what i needed. Would be much more helpful if the batch processor showed more info, like time to travel by car to each post code. Distance as travelled by pigeon doesn't really help much. Nice programme though, but would prefer more useful output from the batch processing.
By Andy on 13th December 2022

LOVE <3
By Ameer Sami Faris on 12th December 2022

Would be nice to be able to call from a spreadsheet with 2 postcodes and get the "Distance by Land Transport" returned.
By Another Dave on 8th November 2022

Thanks for creating - makes checking schools for admissions policies much simpler :)
On 19th October 2022

Hi, i use this tool daily it has transformed my life
By Shaun on 21st September 2022

Hi, great tool. Is it possible to enable bulk processing of distance by road transport - that would be SO useful, Thanks
By Stephen on 6th September 2022

This has been life changing, thank you for creating this I owe you my life
By Georgina on 31st August 2022

Hi fabulous tool :)
By Geoffrey on 31st August 2022

Do you have API of this?
By Demo on 13th August 2022

Very nice tool, but why the hell does Facebook need to know about any potential journeys that you might be planning?
By Anthony Faulkner on 18th July 2022

Hi Steve, have a look at Radius From UK Postcode.
By Free Map Tools on 21st May 2022

Hi, Would be good if we could pick a postcode and ask for all other post codes within a certain distance (as crow flies)?
By Steve Bright on 21st May 2022

Excellent tool for calculating millage when choosing to visit different locations in priority & or crossing over to each location individually ... all in the same run out.
By Chris O'Connor ESAM ( East S on 6th April 2022

The bulk processing stays in the text box. The distances are simply appended to what you type in. You can then copy and paste the data out.
By Free Map Tools on 11th March 2022

Hi - where is the bulk data saved to once completed? I have run but no additional fields or obvious file to download - thank you.
By paul on 11th March 2022

Gaz, sorry that's not possible.
By Free Map Tools on 17th February 2022

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