# Find distance between two points on Earth

1. Aug 7, 2006

### Mk

How could you find the distance between two points, such as
N12° 34.567 W12° 34.567
and
N12° 34.568 W12° 34.567?

2. Aug 7, 2006

### chroot

Staff Emeritus
3. Aug 8, 2006

### dextercioby

Wow, how interesting, i didn't see this thread when i posted mine.

Anyway, i guess my treatment of the subject is quite accessible.

Daniel.

4. Aug 8, 2006

5. Aug 8, 2006

### itsbob

0.0011506641413132668 miles
or 6.076 feet

Last edited: Aug 8, 2006
6. Aug 8, 2006

### itsbob

Be careful though, becasue you have a mixed lat long.. you have to convert the decimal of minutes to minutes and seconds. 34.567 minutes = 34 Minutes 34.02 seconds(.567 * 60)..

7. Aug 8, 2006

### Mk

Guys, I wanted to know how I could get the answer, not for you to tell me or give me an app to do do it for me.

8. Aug 8, 2006

### chroot

Staff Emeritus
9. Aug 10, 2006

### myspip

"Unfortunately, the flattening of the Earth cannot be taken into account in this simple derivation, since the problem is considerably more complicated for a spheroid or ellipsoid (each of which has a radius which is a function of latitude). This leads to extremely complicated expressions for oblate spheroid geodesics and geodesics on other ellipsoids."
So you won't get the most accurate solutions; but that's no problem if dealing with relatively short distances.