Student Loan Refinance Calculator
Use this student loan refinance calculator to estimate your monthly payment, compare refinance scenarios and see how interest rates or repayment terms could change the total cost of your loans.
This tool goes beyond a simple payment estimate. The student loan refinance calculator helps you understand:
- How refinancing could change your monthly payment
- How much interest you may save (or add)
- How long it may take to pay off your loans
Think of it as a decision tool, not just a math tool. Instead of guessing whether refinancing helps, you can see how different options may affect your loans over time.
Student Refinance Calculator
Your Current Loan
Refinance Options
How We Calculate Your Results
Friendly Finly Advice
Please remember that these calculations are estimates and not exact figures. Your eligibility for certain plans may vary depending on your situation.
For detailed and final information, please contact us.
Your Results
Please remember that these calculations are estimates and not exact figures. Your eligibility for certain plans may vary depending on your situation.
For detailed and final information, please contact us.
Need help deciding if refinancing is worth it?
If you’re unsure whether refinancing is the best choice for your situation, Finly can help you compare your options.
Our team walks through:
- Your current loan structure
- Potential refinance scenarios
- The long-term trade-offs between lowering payments, reducing interest or keeping federal protections
In some situations, refinancing can offer large savings. In others, maintaining your current repayment strategy could be the best option. Reviewing the numbers helps inform your decision.
How this student loan calculator works
This student loan refinancing calculator compares your current loan with a potential refinance loan. It estimates how your payment, interest cost and payoff timeline could change if you refinance.
To use the calculator:
- Enter your current loan balance.
- Add your current interest rate.
- Enter the years remaining on your loan.
- Add a possible refinance interest rate.
- Choose a repayment term.
- Review the results showing your new payment, interest cost and potential savings.
NOTE: You can also enter your state of residence and credit score to receive suggestions of student loan refinance lenders you may qualify for. Always remember that these are only recommendations based on their published underwriting data. The results do not guarantee loan approval from these lenders.
The calculator then displays how much money you would save with the new loan terms, and potential lenders you could qualify for.
Understanding the student loan refinance calculator inputs
Each field in the student loan refinance calculator affects either your monthly payment, the total interest you pay or both.
Understanding what each input represents can help you run more accurate scenarios.
Your current balance is the exact amount you still owe on your student loans. You can usually find this number on your loan servicer’s website or your most recent statement. Enter the full amount you owe, not just your monthly payment.
This number affects:
- Your monthly payment
- How much interest accrues over time
- The total cost of repayment
Even small balance differences can significantly change the long-term cost of your loan.
Your interest rate determines:
- How quickly interest builds on your balance
- How much interest you’ll pay if you keep your current loan
Borrowers with higher interest rates often see the biggest potential savings from refinancing.
This is the total number of years remaining on your current loan if you continue your current payment schedule. You can usually find this by checking your loan statement or online account.
The remaining term affects:
- Your current monthly payment
- The amount of interest still left to pay
If you refinance, choosing a longer or shorter term can significantly change both your payment and your total interest cost.
This is the estimated interest rate you could qualify for if you refinance. Use an interest rate from a lender’s prequalification tool or a typical rate range for someone with your credit profile. It is usually expressed as an annual percentage rate (APR).
Lenders typically determine refinance rates based on factors like:
- Credit score
- Income and employment stability
- Debt-to-income ratio
- Loan amount and term
A lower refinance rate can reduce both your monthly payment and the total interest paid over the life of the loan.
The new loan term is the number of years you plan to take to repay the refinanced loan. Most refinance lenders allow you to choose a term—such as 5, 10, 15, or 20 years—that fits your budget and goals.
Enter the timeline that matches the offer you’re considering.
Shorter repayment terms result in:
- Higher monthly payments
- Less total interest
- Faster payoff
Longer repayment terms can cause:
- Lower monthly payments
- More interest over time
- Slower payoff timeline
The right term depends on whether your goal is lower monthly payments or faster debt payoff.
Understand your results
Entering your information lets you compare your current loan with a possible refinance side by side.
Here are the key numbers to focus on.
New monthly payment
This shows your projected monthly payment after refinancing.
Comparing the two payments helps you see:
- Whether refinancing lowers or raises your payment
- How your monthly budget may change
For some borrowers, refinancing is about reducing monthly payments. For others, the goal is to pay off the loan faster.
Total interest cost
This shows how much interest you would pay over the full life of each loan. Often, this is the most important number in the comparison. Even if a refinance lowers your payment, a longer loan term may increase your total interest cost.
How to use these results
A calculator provides numbers, but understanding what those numbers mean is what leads to a good decision.
Check your break-even point
The break-even point shows how long it takes for refinance savings to outweigh any trade-offs.
For example, if refinancing saves you money each month but resets your loan term, it may take a few years before you actually come out ahead.
Understanding this timeline helps you evaluate whether refinancing aligns with your long-term plans.
Test different scenarios
The calculator works best when you experiment with different inputs.
Try adjusting interest rates and repayment terms. Small changes can significantly affect your monthly payment, interest savings and payoff timeline.
Compare with income-driven repayment
If you refinance federal student loans, they become private loans. This removes access to federal repayment protections such as:
- Income-driven repayment plans
- Federal loan forgiveness programs
- Certain hardship and deferment protections
Because of this, the refinancing decision should consider both the numbers and the protections you may give up.
Break-even savings: when refinancing actually pays off
A lower interest rate does not always produce immediate savings. In many cases, the financial benefit of refinancing builds gradually over time.
Example assumptions:
- Current balance: $30,000
- Current rate: 7.5%
- Remaining term: 10 years
- Refinance options: 6% and 5%
- No fees
What this example shows
- Lower interest rates reduce both payments and total interest.
- Shorter repayment terms increase monthly payments but significantly reduce interest.
What is student loan refinancing?
Student loan refinancing replaces one or more existing loans with a new private loan from a lender.
The new lender pays off your original loans and creates a new loan with different terms.
Borrowers typically refinance to:
- Lower their interest rate.
- Reduce their monthly payment.
- Combine multiple loans into one payment.
- Adjust their repayment timeline.
However, refinancing federal student loans converts them into private loans, which means federal repayment programs and protections no longer apply.
When refinancing can save you money
Refinancing works best when the new loan improves your long-term financial outcome. A lower interest rate can reduce both your monthly payment and the total amount you repay.
Refinancing may make sense if:
- Your current interest rate is relatively high.
- Your credit score has improved since you borrowed.
- Your income is stable or increasing.
- You do not plan to pursue federal loan forgiveness.
- You want a faster or more predictable payoff timeline.
Refinancing is often most beneficial for borrowers who work in the private sector, earn a steady income and want to eliminate their debt as efficiently as possible.
When refinancing may not be the right move
Refinancing is not always the best option. Because refinancing federal loans converts them into private loans, you lose access to federal protections.
Refinancing may not make sense if:
- You’re pursuing Public Service Loan Forgiveness (PSLF).
- You rely on income-driven repayment plans.
- Your income is unstable.
- You may need a deferment or hardship protections.
- You expect to qualify for federal loan forgiveness.
For example, a nonprofit worker with significant federal loan balances may eventually qualify for PSLF loan forgiveness. Refinancing could lower their interest rate but eliminate the opportunity for forgiveness.
Refinancing is permanent. Once federal loans are converted to private loans, they cannot be converted back to federal loans.
Refinance vs. federal repayment plans
Understanding these differences is important before deciding whether refinancing is right for your situation.
Frequently asked questions
A student loan refinance calculator estimates your monthly payment, total interest cost and payoff timeline under different loan scenarios.
The calculator provides an estimate based on your inputs. Your actual refinance rate and loan terms may vary depending on factors such as credit score, income and lender criteria.
Potential savings depend on:
- How much your interest rate decreases
- The repayment term you choose
- How long you keep the loan before paying it off
Yes. Refinancing federal student loans converts them into private loans and removes eligibility for federal forgiveness programs and income-driven repayment plans.