It is the easiest way to get around the city. Just buy the ticket (token) and you can get almost every way. There are plans for to open new lines in future as for now it looks like in this way:
1…. Sviatoshyns’ko – Brovars’ka (18 stations)
2…. Kurenivs’ko – Chervonoarmiis’ka liniia (12 stations)
3…. Syretsko – Pechers’ka liniia (17 Stations + 1 closed)
Teatral’na – Zoloti vorota
Khreschatyk – Maidan nezalezhnosti
Ploscha L’va Tolstoho – Palats sportu
The tickets which have been issued before the price changing can’t be used anymore!
You can buy them from the cashiers at the entrance of every station.
In many stations you can also find some automatic exchange machine which accept Hryvnia banknotes.
Kiev metro official site:
Kiev metro on wikipedia: