Yes, it's possible. Use coordSystem.geo.getDistance method:
ymaps.coordSystem.geo.getDistance(p1.geometry.getCoordinates(), p2.geometry.getCoordinates())
Question
I have two Placemark objects with latitude/longitude and I'd like to get the distance between them.
Is it possible to do using Yandex Maps Api?
Or what is the preferred way of finding the distance? Using formulas/library in JavaScript?
Solution
Yes, it's possible. Use coordSystem.geo.getDistance method:
ymaps.coordSystem.geo.getDistance(p1.geometry.getCoordinates(), p2.geometry.getCoordinates())