Loan Calculator
Student Loan Payoff Calculator
Estimate student loan payoff time, total interest, and how much an extra monthly payment could save.
Use the Student Loan Payoff Calculator
Your results
- Payoff time
- 0 months
- Total interest paid
- $0.00
- Total amount paid
- $0.00
- Interest saved with extra payment
- $0.00
Payoff Schedule
How this calculator works
- What it does
- Estimate student loan payoff time, total interest, and how much an extra monthly payment could save.
- Inputs used
- The estimate uses student loan balance, annual interest rate (%), current monthly payment, and extra monthly payment.
- Calculation approach
- The calculator applies the relationships defined for the student loan payoff calculator to those inputs and updates payoff time, total interest paid, total amount paid, and interest saved with extra payment.
- How to read the result
- Treat the result as a scenario based on the values entered. Compare a few reasonable inputs and consider costs, taxes, timing, or risks that the calculator does not include.
How to Use This Calculator
- Enter Student loan balance and Annual interest rate (%) using values that match the scenario you want to evaluate.
- Enter Current monthly payment and Extra monthly payment using values that match the scenario you want to evaluate.
- Review the assumptions for the student loan payoff calculator, especially rates, time periods, and optional amounts.
- Select Calculate to update the results, then adjust one input at a time to compare scenarios.
Understanding the Results
- Payoff time
- The estimated time needed to reach the target under the current contribution, payment, and growth assumptions.
- Total interest paid
- The estimated cost created by the entered rate over the selected period.
- Total amount paid
- The combined amount estimated from the recurring values and time period in this scenario.
- Interest saved with extra payment
- The interest saved with extra payment estimated by the Student Loan Payoff Calculator using student loan balance, annual interest rate (%), and current monthly payment and the other values entered.
Common Mistakes
- Entering an annual interest rate as a monthly rate, or leaving out fees and required payments.
- Assuming the quoted monthly payment includes taxes, insurance, or other costs when it may cover principal and interest only.
- Ignoring whether a payment is high enough to cover the interest added each month.
- Comparing payments without also comparing payoff time and total cost.
Worked Example
Example inputs
- Student loan balance
- $40,000
- Annual interest rate (%)
- 6.5%
- Current monthly payment
- $500
- Extra monthly payment
- $100
Example results
- Payoff time
- 6 years, 11 months
- Total interest paid
- $9,761.74
- Total amount paid
- $49,761.74
- Interest saved with extra payment
- $2,809.59
With these example payments and rates, the payoff time is 6 years, 11 months. Actual payoff timing can change with fees, rate changes, missed payments, or additional charges.
Frequently asked questions
How does the Student Loan Payoff Calculator work?
It adds monthly interest to the remaining balance, subtracts your payment, and repeats until the loan is paid. It compares your current payment with a payment that includes the extra amount.
How much can an extra student loan payment save?
The savings depend on your balance, interest rate, current payment, and extra payment. Paying principal sooner generally reduces both payoff time and total interest.
Why might my student loan payoff be unreachable?
If the monthly payment does not exceed the interest added each month, the principal cannot decline. A larger payment or lower interest rate is needed.
Can I use this for income-driven repayment?
This calculator assumes fixed monthly payments and a fixed interest rate. Income-driven plans, forgiveness, subsidies, deferment, and payment changes require a specialized estimate.
Should I refinance before making extra payments?
Refinancing may lower the rate, but federal protections and forgiveness options can be lost. Compare the new terms, fees, benefits, and repayment flexibility carefully.
What does the Student Loan Payoff Calculator calculate?
Estimate student loan payoff time, total interest, and how much an extra monthly payment could save. The result is based only on the inputs and assumptions shown on the page.
How should I interpret the payoff time from the Student Loan Payoff Calculator?
Use it as an estimate for the scenario entered, not as a guarantee or personal recommendation. Test changes to student loan balance, annual interest rate (%), and current monthly payment to see which assumptions have the greatest effect.