# Globe Coordinate Prediction

#### MrHalsey

##### New Member
Hello my fellow excel people,

I'm trying to predict latitude and longitude coordinates within 2 predefined points. If this was a 2D problem then I'm sweet, but it gets tricky with the curvature of the earth (anti flat earther).

Once point A & B have been set i want to basically be able to predict as many in between points as i wish.

An example being i want a total of 11. This bit i have nailed, but just adds complexity.

What I'm struggling with is taking the earth curvature into consideration. Technically i find the midpoint but when I plot it onto a map it doesn't follow the correct logic.

I have a calculation for latitude and one for longitude. No difference just the reference. The example will only show 1 as its the same.

Obviously i have to factor in the earths radius - 6,371KM. Found lots online but nothing specifically for excel.

Heres a short file to visually see.

 Point A Point B LAT A -13.90061 LAT B LON A -137.50836 LON B Point LAT Formula 1 -13.90061 =C3 2 -14.031651 =C8-((C\$3-F\$3)/10) 3 -14.162692 =C10-((C\$3-F\$3)/10) 4 -14.293733 =C12-((C\$3-F\$3)/10) 5 -14.424774 =C14-((C\$3-F\$3)/10) 6 -14.555815 =C16-((C\$3-F\$3)/10) 7 -14.686856 =C18-((C\$3-F\$3)/10) 8 -14.817897 =C20-((C\$3-F\$3)/10) 9 -14.948938 =C22-((C\$3-F\$3)/10) 10 -15.079979 =C24-((C\$3-F\$3)/10) 11 -15.21102 =F3

Using google mymaps we can visually see my predicted coordinates (navy) verses a correct line (red), additionally a middle point (green). Here we can see the inaccuracy of my results.

Overall, i need a formula to align my predictions with the correct line (red). Ideally in a single formula.

M

### Excel Facts

If Excel says you have links but you can't find them, go to Formulas, Name Manager. Look for old links to dead workbooks & delete.

Replies
2
Views
191
Replies
6
Views
51
Replies
1
Views
451
Replies
4
Views
70
Replies
7
Views
2K

1,130,407
Messages
5,641,955
Members
417,249
Latest member
serrulate

### We've detected that you are using an adblocker.

We have a great community of people providing Excel help here, but the hosting costs are enormous. You can help keep this site running by allowing ads on MrExcel.com.

### Which adblocker are you using?

1)Click on the icon in the browser’s toolbar.
2)Click on the icon in the browser’s toolbar.
2)Click on the "Pause on this site" option.
Go back

1)Click on the icon in the browser’s toolbar.
2)Click on the toggle to disable it for "mrexcel.com".
Go back

### Disable uBlock Origin

Follow these easy steps to disable uBlock Origin

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back

### Disable uBlock

Follow these easy steps to disable uBlock

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back