Estimate how much you can save by refinancing your student loans. Compare your current loan terms with new refinance options to see monthly payment changes and total interest savings. This tool helps loan applicants and financial planners make informed borrowing decisions.
Student Loan Refinance Calculator
Compare current and refinance loan terms to estimate savings
Current Loan Details
New Refinance Terms
Refinance Savings Breakdown
How to Use This Tool
Enter your current student loan balance, interest rate, and remaining repayment term in the Current Loan Details section.
Input the new interest rate you qualify for, select a new loan term, and add any origination fees charged by the refinance lender in the New Refinance Terms section.
Click Calculate Savings to see a detailed breakdown of monthly payment changes, total interest savings, and break-even timelines.
Use the Reset button to clear all inputs and start a new calculation.
Click the Copy Results button to save the full breakdown to your clipboard for reference when comparing lender offers.
Formula and Logic
This calculator uses the standard amortization formula to calculate fixed monthly loan payments:
Monthly Payment = P * [r(1+r)^n] / [(1+r)^n - 1]
Where:
- P = Principal loan amount (current balance plus any origination fees for the new loan)
- r = Monthly interest rate (annual rate divided by 12)
- n = Total number of monthly payments (loan term in years multiplied by 12)
Total interest paid is calculated as (Monthly Payment * Number of Payments) minus the Principal amount.
Savings are derived by subtracting new loan totals from current loan totals. The break-even point divides any upfront origination fees by monthly savings to show how many months it takes for savings to offset initial costs.
Practical Notes
Refinancing federal student loans into private loans forfeits access to income-driven repayment plans, Public Service Loan Forgiveness, and deferment/forbearance options. Only refinance federal loans if you have stable income and do not need these benefits.
Check your credit score before applying for refinancing: borrowers with credit scores above 700 typically qualify for the lowest available rates.
Origination fees are charged by some lenders as a percentage of the loan amount. Rolling these fees into the new loan increases the principal, which can reduce overall savings.
You may be eligible to deduct up to $2,500 of student loan interest paid per year on your federal tax return, regardless of whether you refinance.
Compare offers from at least 3-5 lenders, as rates and fees vary widely between financial institutions.
Why This Tool Is Useful
It provides a clear, side-by-side comparison of your current loan terms and potential refinance options, removing guesswork from the decision-making process.
The detailed breakdown includes often-overlooked costs like origination fees, so you can calculate true long-term savings rather than just monthly payment changes.
Financial planners and loan applicants can use this tool to model multiple refinance scenarios (e.g., 10-year vs 15-year terms) to align with personal budget and financial goals.
It helps you determine if the interest rate reduction is large enough to offset upfront fees and longer repayment terms that may increase total interest paid.
Frequently Asked Questions
Will refinancing my student loans save me money?
Refinancing saves money if the new interest rate is low enough to offset any origination fees and changes to the loan term. A lower rate or shorter term typically reduces total interest paid, while a longer term may lower monthly payments but increase total interest costs.
Do I need to include origination fees in my calculation?
Yes, origination fees increase the total amount you borrow, which raises the principal balance of the new loan. Even a 1-2% fee can significantly impact total savings, especially for large loan balances.
Can I refinance federal student loans?
Yes, but refinancing federal loans replaces them with a private loan, so you will lose access to federal benefits like income-driven repayment, loan forgiveness programs, and flexible deferment options. Only refinance federal loans if you are confident you will not need these protections.
Additional Guidance
Consider fixed-rate refinance loans over variable-rate options if you prefer predictable monthly payments. Variable rates may start lower but can increase over time, raising your total costs.
If you have multiple student loans, you can refinance them all into a single loan to simplify repayment, but make sure the blended interest rate is lower than your current average rate.
Make sure you have an emergency fund of 3-6 months of living expenses before refinancing, as private loans do not offer the same deferment options as federal loans if you lose income.
Recalculate your savings annually as your credit score improves or market rates drop, as you may qualify for better refinance terms over time.