Student Loan Refinance Calculator

Compare your current student loan vs a refinanced loan. See monthly savings, total interest savings, and new payoff timeline side by side.

$
%
%
Current Monthly Payment
$669.31
6.5% for 8 years remaining
Refinanced Monthly Payment
$621.16
4.5% for 8 years
Monthly Savings
$48.15
You save each month
Lifetime Savings
$4,622.39
Total interest savings
Current Total Interest
$14,253.92
Total interest over 8 years
Refinance Total Interest
$9,631.53
Total interest over 8 years
Current Total Payment
$64,253.92
669.31/mo ร— 96 months
Refinance Total Payment
$59,631.53
621.16/mo ร— 96 months

Payment & Interest Comparison

Monthly Payment
CurrentRefi
Total Interest
CurrentRefi
MetricCurrent LoanRefinanceDifference
Interest Rate6.5%4.5%-2.00%
Remaining Term8 years8 years+0 yrs
Monthly Payment$669.31$621.16$48.15
Total Interest$14,253.92$9,631.53$4,622.39
Total Amount Paid$64,253.92$59,631.53$4,622.39
๐Ÿ’ก Break-Even Analysis

You'll break even on refinancing costs in approximately 0 months (0.0 years). After this point, all savings are profit from the lower interest rate.

Planning notes, formulas, and examples

About the Student Loan Refinance Calculator

Refinancing replaces your existing student loans with a new private loan at a potentially lower interest rate. This calculator compares your current loan terms against a refinanced loan, showing you the monthly savings, total interest savings, and new payoff timeline.

Refinancing can save significant money if you qualify for a lower rate, but it comes with a major tradeoff: refinancing federal loans into a private loan means losing access to federal protections like income-driven repayment, PSLF, and deferment options.

Use this calculator to quantify the potential savings from refinancing and weigh them against the federal benefits you'd give up. If your savings are substantial and you don't anticipate needing federal protections, refinancing can be a smart financial move.

When This Page Helps

The decision to refinance is one of the biggest financial choices student loan borrowers face. This calculator removes the guesswork by showing exact dollar savings. If refinancing saves $5,000โ€“$10,000+ in total interest, the math may justify giving up federal protections. If the savings are minimal, keeping federal loans makes more sense.

How to Use the Inputs

  1. Enter your current loan balance.
  2. Enter your current interest rate and remaining term.
  3. Enter the new refinanced rate you qualify for.
  4. Set the new loan term (often 5โ€“20 years).
  5. Compare monthly payments, total interest, and total cost side by side.
  6. Decide whether the savings justify losing federal loan benefits.
Formula used
Monthly Payment = P ร— [r(1+r)^n] / [(1+r)^n โˆ’ 1] Savings = Current Total Cost โˆ’ Refinanced Total Cost Compare: current (balance, rate, remaining term) vs refinanced (balance, new rate, new term)

Example Calculation

Result: $5,768 total savings

Current: $50,000 at 6.5% over 8 years = $694/month, $66,607 total. Refinanced: $50,000 at 4.5% over 8 years = $638/month, $61,239 total. Refinancing saves $56/month and $5,768 over the remaining loan life.

Tips & Best Practices

  • Never refinance federal loans if you're pursuing PSLF or expect to need income-driven repayment.
  • Your credit score and income are the biggest factors in qualifying for a lower refinance rate.
  • Some lenders offer rate discounts for autopay (typically 0.25%).
  • Consider refinancing only your private loans while keeping federal loans for their protections.
  • A shorter refinanced term saves more on interest but increases monthly payments.
  • Get quotes from multiple lenders; soft credit pulls don't affect your credit score.

The Refinancing Decision Framework

Refinancing makes the most sense when you have strong credit (720+), stable high income, won't need federal protections, and can secure a rate at least 1โ€“2 percentage points below your current rate. The bigger the rate drop and the larger the balance, the more you save.

Federal vs Private: What You Give Up

Federal loans come with a safety net: income-driven repayment adjusts payments to your income, PSLF forgives balances for public servants, and deferment pauses payments during hardship. Private loans offer none of these. Think of the rate premium on federal loans as the cost of this insurance.

Partial Refinancing Strategy

A smart middle ground is to refinance only your private or highest-rate federal loans while keeping some federal loans for their protections. This captures savings on the loans where refinancing helps most while preserving your federal safety net.

Sources & Methodology

Last updated:

Frequently Asked Questions

  • Refinancing replaces one or more existing loans with a new private loan, ideally at a lower interest rate. Unlike federal consolidation, refinancing is done through private lenders and can include both federal and private loans.