Same for me. using the calculators I somehow come out with less account lvl then is shown on live. Granted I only have 4 heroes at lvl 10 and beyond but my Muradin alone jumps from 11 to 23. So if no other variable changes that would bring my live from 380 to 392... and not after ll calculations are made to a combined lvl of 371. So I take it with a grain of salt and let myself be surprised by the chests on conversion day.