I have checked google maps and it's only 300 km apart! We are indeed almost relatives :) But it's about 5 hours 27 minutes by car.. those roads in Ukraine :)
Did you move because of work? I visited Kiev a few times and I loved it. There are of course some dodgy places where I would never walk alone but there are many beautiful places in the city that I truly enjoyed. People are so nice day and food is very good!