I would like to know what is the distance in km between two longitudes and two latitudes.
For example, at the same latitude, what is the distance, in km, between longitude x and longitude x+1 (where x is the longitude in decimal).
Same question for latitude: at the same longitude what is the distance, in km, between latitude x and latitude x+1 ? (where x is the latitude in decimal)
Edit to avoid confusion:
I do not want to calculate the distance between two points with latitude and longitude, I want to know how many kilometers is a difference of 1 for two longitudes at the same latitude and two latitudes at the same longitudes.
For example, distance between longitude 43.0 and 44.0 is XXX km.