Paragon Calculator

"Season Paragon gain" you can calculate how much paragon levels your normal account increase based on your current season paragon level, just enter the current normal and season paragon level and press calculate
"Experience Required" you can calculate how much total experience you need from level x to level y it will also show the total experience need to get to level y from level 1, the "from" field is optional.

Season Paragon gain

Experience Required