Student Loan Refinance Calculator
This student loan refinance calculator helps you compare your current loan against a refinance offer so you can see whether lower payments or lower lifetime cost are actually on the table.
Calculator
Adjust the inputs to explore different scenarios instantly.
Estimated refinance monthly payment
$475
How it works
Enter your remaining balance, current interest rate, and current term, then add a refinance rate, new term, and any fees. The calculator compares the two payment paths and estimates payment differences, interest savings, and break-even timing.
Example calculation
Refinancing a $37,000 student loan from 7.1% to 5.4% can lower the payment or shorten the term, but the real benefit depends on the new term length and any refinance costs. A lower rate does not always mean lower total cost if the term is extended too far.
Why this matters
Refinancing can be helpful, but it is easy to focus only on the monthly payment and miss the bigger tradeoff. A side-by-side estimate helps you see whether the refinance actually improves your total repayment picture.
Refinancing is more than a lower rate
Student loan refinancing can lower the interest rate or monthly payment, but the decision is not just rate shopping.
For federal loans, refinancing into a private loan can mean giving up federal protections, income-driven repayment access, and forgiveness paths. This calculator focuses on the payment math so you can separate cost savings from program tradeoffs.
What the refinance comparison checks
- Compares current loan payment and interest with a refinance offer.
- Estimates monthly payment difference.
- Estimates lifetime interest savings or added cost.
- Includes fees when entered so break-even timing is easier to judge.
When to compare refinance offers
- When you have a private refinance offer to compare.
- When deciding whether a lower rate is worth a new term.
- When checking whether lower monthly payments increase total interest.
- Before refinancing federal loans into private loans.
Example: lower rate, longer term
Refinancing from 7.1% to 5.4% may look attractive, but extending the term can reduce the monthly payment while limiting total interest savings.
The calculator shows both payment change and lifetime cost so the lower monthly number does not hide the full tradeoff.
- Current balance, rate, and remaining term entered by the user
- New refinance rate and term entered by the user
- Refinance fees entered when applicable
- Federal borrower protections not assigned a dollar value
A refinance is stronger when it improves total cost without removing benefits you are likely to need.
How savings are estimated
The calculator estimates the remaining cost of the current loan and compares it with a new amortized loan using the refinance rate and term.
If fees are included, they reduce or delay the estimated savings.
How to read refinance savings
Monthly savings can be useful for cash flow, but lifetime savings show whether the refinance actually reduces total cost.
If the current loan is federal, treat any projected savings alongside the value of federal repayment options, deferment rules, and forgiveness eligibility.
Refinance mistakes
- Refinancing federal loans without understanding lost federal protections.
- Focusing only on monthly payment while extending the term too far.
- Ignoring refinance fees or variable-rate risk.
- Comparing loans with different remaining terms as if the rate is the only variable.
- Refinancing when forgiveness or IDR options are likely to matter.
Ways to evaluate the tradeoff
- Compare same-term and longer-term refinance scenarios separately.
- Check whether the new rate is fixed or variable.
- Include fees in the comparison if the lender charges them.
- Verify federal loan tradeoffs at StudentAid.gov before refinancing federal debt.
Frequently asked questions
Does a lower rate always mean lower total cost?
Not always. If the new term is much longer, total interest can still stay high even with a lower rate.
Should I include refinance fees?
Yes. Including fees gives you a more realistic view of savings and break-even timing.
Can I use this for private student loan offers?
Yes. This tool is designed for side-by-side comparison of current and new fixed-rate loan scenarios.
Does this account for federal borrower protections?
No. This calculator focuses on payment and interest math only, not the value of benefits you may lose by refinancing federal loans.