Put all your loans into the debt reduction calculator that i attached and it will quickly show your the cost in interest, make sure to select "No Strategy" in the drop down, to force it to calculate everything assuming you are paying the minimum payments. Also enter the amount of money you can afford to throw at your loans then select different strategies to see how much less you can pay in interest and how much faster you cna pay everything off. Depending on your interest rates, you may decide not to snowball student loans and just pay minimums, to grow your stache faster. Goodluck!