Student Loan Refinance Calculator

How the Student Loan Refinance Calculator Works

This calculator compares your current student loan against a potential refinance offer side by side. It calculates your monthly payment under both scenarios using the standard amortization formula, then shows you the difference in monthly payment, total interest, and total cost over the life of each loan. If you enter refinance fees, it also calculates your break-even point — the number of months it takes for your monthly savings to recoup the upfront cost.

What to Look For in a Refinance Offer

A good refinance offer should provide at least one of these benefits:

• Lower interest rate: Even a 1% rate reduction can save thousands over the life of the loan.
• Shorter term: A shorter term means higher monthly payments but far less total interest.
• Lower monthly payment: Extending the term lowers your payment but may increase total interest — make sure you understand the trade-off.
• No origination fees: Many top lenders charge $0 in fees, so do not settle for one that charges upfront.

Federal vs. Private Refinancing — Know the Trade-Off

Refinancing a federal student loan converts it into a private loan, which means you permanently lose federal benefits:

• Income-Driven Repayment (IDR) plans
• Public Service Loan Forgiveness (PSLF)
• Federal deferment and forbearance
• Death and disability discharge

If you work in public service, have uncertain income, or might qualify for PSLF, think carefully. If you have private loans already, refinancing has no downside — you are simply swapping one private loan for a better one.

Before you sign, run your numbers through our PSLF calculator and IDR calculator — if forgiveness is realistic, refinancing usually destroys more value than the rate cut creates.

How to Get the Best Refinance Rate

1. Check your credit score. Most lenders require a score of 650+, and the best rates go to borrowers with 750+.
2. Compare at least 3–5 lenders. Rates vary significantly between lenders. Use a rate-comparison tool to get prequalified with soft credit checks.
3. Consider a co-signer. A creditworthy co-signer can help you qualify for a lower rate, especially if your credit history is thin.
4. Choose the right term. Shorter terms get lower rates but higher payments. Use this calculator to find the sweet spot.
5. Apply within a 14-day window. Multiple rate-shopping inquiries within 14 days count as a single hard pull on your credit report.

The Bottom Line

Refinancing is a powerful tool for private loans and for federal borrowers who are certain they will never use federal protections. It is a mistake for anyone pursuing PSLF or leaning on income-driven repayment. Run the numbers here, then check what you would give up before you sign.