If it were me, I would do the consolidation simply because one payment every month is easier than managing 4 different payments that could likely change loan servicers periodically. The total difference in amount paid is likely to be small either way, but you'll have less things to think about with the consolidation.

The real way you're going to save money is by making bigger payments above and beyond the minimum payment whenever you can.

If it were me, I would do the consolidation simply because one payment every month is easier than managing 4 different payments that could likely change loan servicers periodically. The total difference in amount paid is likely to be small either way, but you'll have less things to think about with the consolidation.

The real way you're going to save money is by making bigger payments above and beyond the minimum payment whenever you can.

Update: Based on your comment that if you consolidate only Loans 1-3 the rate would be 4.99% (which is even lower), then a good alternative would be to consolidate just the first 3 loans and have two payments. Then when you have extra money available you would put it towards the 6.55% rate portion of Loan 4 until it's paid off (if you can), then once it's gone switch over to paying extra on the consolidated loan. You'll save a little bit more this way, but I'm not sure if even that extra savings is worth the additional complexity. That depends on your personality.