Map Tunnelling Tool

Tunnel to the Other Side of the Earth

Have you ever wondered which part of the other side of the earth is directly below you? Find out using this map tunnelling tool.

Map Tunnelling Tool

Map 1

Map 2

Options

[Map Height : Small - Medium - Large]

Unlink Zoom between Map 1 and Map 2

Keep on the same latitude

Flip Map 2 Upside Down

Manual Input

Input the latitude and longitude of a point on the left map and see its corresponding antipode on the right map.

Latitude Longitude

Locate Point

How to use the Map Tunnelling Tool

Drag map 1 or 2 by clicking and holding the map as you move it. When you let go and finish dragging the map the other map will then show you where about's on the earth the far end of the imaginary tunnel will be. In effect it will show you what is at the other side of the earth.

To make things easier, you can also zoom the map in and out.

You can adjust the height of the map by using the small, medium and large buttons.

You can also change the map view using the Map, Satellite and Hybrid buttons. This works independently for each map.

About

This is a Antipodes Map. An antipode of a point on the earth is the region on the Earth's surface which is diametrically opposite to that point. The two points which are antipodal to one another are considered to be connected by a straight line or tunnel through the centre of the Earth.

Version History

16th November 2021 - Bug fix
31st August 2021 - Bug fix - Prevent map jumping/oscillating after move
23rd January 2020 - Bug fix - issues when starting in Western Europe
6th July 2019 - Added centre cross hairs to center of both maps
19th November 2018 - Option to flip map2 upside down
15th Octber 2018 - Converted to Leaflet maps
20th February 2017 - Updates to UI
3rd May 2015 - Now displays the tunnel distance
14th January 2015 - New option : Keep on the same latitude
19th November 2014 - Added manual input by latitude / longitude or by place name
9th March 2014 - Update to fix bug with crosshairs not appearing on the exact centre of the map
11th November 2013 - Implemented Google Maps API V3
21st September 2009 - Removed border around maps for better fit
14th January 2009 - Added Unlink Zoom option
22nd October 2008 - Added dual control so both maps can be the "driver" and the "passenger". The nearest country also now displays for both maps
22nd July 2008 - Latitude and longitude for the centre of each map is now shown. Nearest Country displayed
29th November 2007 - Crosshairs added to each map
20th September 2007 - Map 2 now starts in the correct place instead of the same location as map 1 until map 1 is moved
16th September 2007 - Page Created

Future Developments

Ideas and improvements that are due to be implemented in the future. If you think of any ways of improving this tunnelling tool or spot any bugs, then please get in touch.

Display Coordinates of cross-hairs on screen
KML download for each of the two points for use in Google Earth
If both maps were overlayed with transparency and one map was upside down

Relevant Links

Google Earth Tunnelling Tool

What would happen if I drilled a tunnel through the centre of the Earth and jumped into it?

Latitude and longitude converter and antipodal calculator

Antipodes: The Other Side of the World

Comments For This Page

ion the sea =(
By s on 11th August 2022

Apparently of You dig straight through Long Island, New York you'll get pretty close to Australia? Pretty interesting
By Ghostly on 19th July 2022

I have to put in latitude and longitude. I just want to put in Virginia and have it do the work for me.
By coco on 5th June 2022

Cool
On 22nd May 2022

Well done and thanks. John. From Perth. Australia.
On 19th April 2022

Something is wrong with the latitude finding. The map is showing antipodes in the Northern Hemisphere for points in the Northern Hemisphere. Longitude seems to be working correctly, though.
By Michael Seifert on 16th November 2021

This is completely wrong. Points in the northern hemisphere must always yield results in the southern hemisphere, but that is not happening.
By Gary Novosielski. on 30th September 2021

31dt August 2021 bugfix is not fixed. it still moves when zooming in and out. it went from the netherland to turkey when zooming out.
On 15th September 2021

kept jumping. useless and buggy.
By KK6VDR on 25th August 2021

Works fine but why the mercator projection
By funny_picklerick_bluehairman_f on 30th April 2021

china
On 25th October 2020

To answer the question "At what point on each of the main highways of Taiwan do they cross the (virtual (antipodal)) Argentina / Paraguay border?" What we need is an overlay!
By Dan Jacobson on 10th October 2020

Hi, its in decimal DMS, for example the Eiffel tower would be 48.8583 and 2.2944
By Free Map Tools on 25th September 2020

How do you add latitude and longitude? What format? Please include an example.
By Curious on 24th September 2020

Now it finally works. When I tried it months ago, it was wrong but now it's correct.
On 24th July 2020

Keeps jumping to other locations?
By Graham on 13th June 2020

Another visitor from the BBC article. Well done for the tool
By Sam Jackson on 26th February 2020

Ditto: "How many of you came here after hearing that 2 boys made an earth sandwich using this site ? https://metro.co.uk/2020/01/20/student-makes-earth-sandwich-help-stranger-side-world-12086766/ By Sam on 20th January 2020"
On 21st January 2020

Fascinating tool. It would be very nice to see the results shown on a globe
By Steve Johnson on 21st January 2020

The tool does not work for northern europe. A point in Norway pairs with a point in far north-east Russia (Chukotka). this is not correct as both points are in the northern hemisphere.
On 20th January 2020

Tunnel to the Other Side of the Earth