About the Student Loan Calculator
Student Loan Calculator helps estimate the key numbers involved in loans & debt decisions. It is designed for quick scenario comparison: enter a realistic set of values, calculate the result, then change one assumption at a time to see what has the greatest effect. Unlike a static table, the result responds to your inputs and keeps the calculation in your browser. Amounts are displayed in U.S. dollars for consistency, but the mathematical formulas can be used with another currency when every monetary input uses that same currency.
How to use this calculator
Enter values that match your situation and select Calculate result. Review the main result and its supporting figures, then change one input at a time to compare scenarios. Results are rounded for readability while the calculation retains additional precision internally.
Information you will need
- Loan amount
- Loan term
- Interest rate
- Compounding
- Payment frequency
- Extra payment
How the calculation works
Standard fixed-payment amortization with compound frequency options. Finds the level payment that reduces the balance to zero. Read the primary result together with the supporting values rather than focusing on one number alone. A useful estimate should make its assumptions visible. If the answer looks surprising, verify the unit, rate, time period, and whether the entered value is gross or net. Run a conservative and an optimistic scenario to understand the range of possible outcomes.
Formula or method
Payment = P × r(1+r)n / ((1+r)n - 1). At zero interest, payment = P / n.
Worked example
$100,000 at 6.5% for 10 years with monthly compounding costs about $1,135/month.
The example is illustrative rather than a recommendation. Use your own verified values and keep all monetary or measurement units consistent. When comparing alternatives, save or note each result so the assumptions do not become mixed.
How to interpret the result
The primary output answers the main question posed by the student loan calculator, while the additional cards provide context. A result with many decimal places is not necessarily more certain. The displayed precision makes comparison easier, but uncertainty in the inputs can be larger than the rounding difference.
Compare the result with a second scenario using a less favorable rate, return, cost, or time period. This sensitivity check often provides more useful planning information than one best-case projection.
Limitations and important notes
The student loan calculator is a planning tool, not a quote, filing calculation, lending decision, or promise of future performance. It does not automatically retrieve live market rates or apply every fee, tax bracket, program rule, product limit, or state law. Rules for products such as FHA, VA, Social Security, retirement accounts, and taxes can change. Confirm time-sensitive values with the lender, plan administrator, IRS, SSA, or another relevant authority before acting.
Frequently asked questions
How much will my student loan payment be?
Enter your loan balance, interest rate, and repayment term. The calculator shows your monthly payment under standard 10-year repayment. You can also compare income-driven repayment (IDR) plans and see the total cost of each option.
What is income-driven repayment (IDR)?
IDR plans cap monthly payments at a percentage of discretionary income (10-20%) and extend the term to 20-25 years. Remaining balances may be forgiven. IDR is helpful for high-balance borrowers but results in more total interest paid.
How do I pay off student loans faster?
Make biweekly payments (equivalent to one extra payment per year), pay more than the minimum, apply windfalls (tax refunds, bonuses) to principal, and consider refinancing to a lower rate if you have good credit and stable income.
What is the current interest rate on federal student loans?
For loans disbursed July 1, 2025 through June 30, 2026, direct undergraduate loans carry a fixed 6.39% rate, graduate loans 7.94%, and parent PLUS loans 8.94%. Rates are set by statute based on the 10-year Treasury auction each May and are fixed for the life of the loan. A $30,000 balance at 6.39% over 10 years is about $339/month, with roughly $10,676 in total interest. Private rates vary by credit; federal rates apply to everyone regardless of score.
Can my federal student loans be forgiven?
Yes, through several paths. Public Service Loan Forgiveness (PSLF) cancels balances after 120 qualifying payments for government or nonprofit workers. Income-driven repayment plans forgive remaining balances after 20-25 years of qualifying payments, and the one-time payment count adjustment may credit past deferment and forbearance months toward that clock. Forgiven IDR balances are not federally taxable through 2025. Forgiveness requires enrollment and paperwork, so track your qualifying payments carefully.
How does the student loan interest deduction work?
The student loan interest deduction lets you deduct up to $2,500 of student loan interest paid during the year, even if you do not itemize. For 2026, the deduction phases out for single filers with MAGI between about $85,000 and $100,000, and for joint filers between $175,000 and $205,000. For a borrower in the 22% tax bracket, the full $2,500 deduction is worth about $550. Your servicer reports interest paid on Form 1098-E, which you use to claim it.
Should I refinance my student loans?
Refinancing federal loans into a private loan can lower your rate, but you permanently lose federal protections: income-driven plans, PSLF, deferment, forbearance, and forgiveness. Refinancing makes sense for borrowers with strong credit, stable income, and no plans to use federal benefits. Never refinance if you might pursue PSLF. On a $40,000 balance over 10 years, each 1% of rate is worth roughly $2,000-2,400 in interest, so the savings can be substantial for high-rate private balances.