French phrase
C'est à ~ kilomètres.
Meaning
It is ___ kilometers from here.
When to use it
Gives the distance from the current location to a place. It is neutral and common in travel or route information.
Example dialogue
Combien de kilomètres jusqu'à Lyon ?
How many kilometers is it to Lyon?
C'est à 450 kilomètres.
It is 450 kilometers from here.