Consolidating locks in a fixed interest rate for the life of your loans. If you borrow additional loans, these can be added to the original consolidation loan as long as you do so within 180 days of the disbursement of the consolidation loan. However, the interest rate might increase because it will be re-calculated to include the rate of the newer loans. Even if you did not borrow from multiple sources, you can still consolidate and lock your interest rate.
Consolidated interest rates are based on the weighted interest rate average of your current loans. You can estimate your consolidation loan monthly payment by using the online calculator at the Federal Direct Consolidation Loans Web site – click "Borrower Services". Many private lenders also offer online calculators.
To determine if consolidation is right for you, it is best to contact the lenders directly and ask them the following questions: