Meeting Centre of Gravity for UK Postcodes

Use this tool to find the best place to hold a meeting for it's attendees by inputting their UK postcodes. The COG tool will then work out the centre of gravity for the meeting. This will be represented by a marker on the map.

Meeting COG Map


Input Data

Input a list of UK postcodes

  Postcode (min=2,max=10)
Postcode 1
Postcode 2
Postcode 3
Postcode 4
Postcode 5
Postcode 6
Postcode 7
Postcode 8
Postcode 9
Postcode 10

 Find COG 


Further Information

Once you input the postcodes, this tool will work out where the best place is to hold the meeting. This will be a point on the map where, if all attendees could travel in a straight line to get to, would give the least combined travel time for them to meet up. You can enter full UK postcodes (incode & outcode) for more accuracy.

Yes, of course people cant travel in straight lines and they cant hold the meeting in a field, in the sea or in some strangers house if that is what the tools tells you. You are then expected to use that as a base from which to find a meeting venue close by, be it a pub, park or hotel etc..

Let us know if this tool comes in useful to you by posting a comment below. It will be interesting to find out how it is used.


Credit must be paid to DWS for a comment posted on the about page on 16th May 2008 suggesting this tool. Thanks.

Future Ideas


Version History

Comments For This Page

Penny, give it 30 seconds. What Postcodes did you input?
By Free Map Tools on 24th July 2019

Calculation taking forever! How long before wise to give up?
By Penny on 24th July 2019

An update has just been made to include new postcodes.
By Free Map Tools on 11th May 2019

Hi, I agree RG2 9GH is not found and that it is a newer postcode, yet still a postcode. Update coming soon for this and other new postcodes...
By Free Map Tools on 11th May 2019

Good afternoon, upon further investigation, it would appear that RG2 9GH is a newish postcode, and i assume that the others I tried were also fairly new. That you for your assistance, and apologies for the confusion.
On 11th May 2019

Good morning,thank you for the response, the one in particular is RG2 9GH, but I tried several RG codes yesterday and couldn\'t get any to be accepted. Tried a different browser this morning (Edge) from my usual Chrome, but with same result
By Brian on 11th May 2019

RG postcodes are loaded. A quick test with RG1 2HN and RG30 1AL works. Can you give some sample postcodes that don't work?
By Free Map Tools on 10th May 2019

Hi, works very well, but appears to reject all postcodes for Reading (RG), are they loaded?
By Brian on 10th May 2019

Hi Rich, which postcodes did you input?
By Free Map Tools on 6th May 2019

never ending loading. no calculation made
By Rich on 3rd May 2019

This is good for what it is, but how can I find the \"centre of minimum distance\"? So the total distance to travel is minimised, not just individual journeys.
By Mr David Brown on 12th April 2019

Need to input a full postcode...
By Free Map Tools on 20th March 2019

Just enteted 4 UK postcodes (just the first part e.g CF72) - doesn't work. Just keeps saying 'loading'.....
On 19th March 2019

Can you try loading the page again and see if it works? When you say "won't accept my own postcode", what is your postcode?
By Free Map Tools on 15th March 2019

Just keeps loading and won't accept my own postcode. Removing it didn't help.
On 15th March 2019

I had a calculation of 6 addresses and worked brilliantly. One person dropped out and I removed an address. The calculation kept the original address in.
By Dougie on 24th February 2019

Thanks for clarification <3
By Jacob on 20th February 2019

Jacob, this page is for UK postcodes. On reflection there is no clear indication of that on the page, sorry. Thank you for not just saying "It doesn't work" and taking the time to explain in reasonable detail. The page will be updated to put "UK" in the text.
By Free Map Tools on 19th February 2019

It doesn't seem to work for me, it just keeps loading perpetually. I tried entering the postcodes with and without the hyphen. For the record, these are Polish postcodes. Also, the same happens on other browsers. Let me know if you come up with any solutions.
By Jacob on 19th February 2019

Yes it does
By Free Map Tools on 30th January 2019

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