Calculating distance beetween longitude latitude pairs in Arcmap or Qgis

Question

How can i calculate DISTANCE column between each rows (around 100) in attribute table of Arcmap or Qgis?

Here is the header row:

name lon1 lat1 lon2 lat2 DISTANCE(empty)

Thanks in advance!

Answer 1

I suppose you want to calculate the distance between lon1-lat1 and lon2-lat2 for each row? See this post: How do I calculate distance between two latitude-longitude points?