I don't know about you other Vikings but i think that we should have the possibility to see our total xp-all time. It would be, awesome!
it's simple math : n*(n+1)/2. well, ofc, that works only until level 1850, because the XP required to level, doubles. and later on, at 2500, and 3000. but it's not that hard to calculate. if you really want to find out, Do The Math