Average Student Loan Payment Calculator Free
For national context, the average federal loan debt is about $39,547, and repaying that over 10 years at the 2025-26 federal rate of 6.39% takes roughly $449.65 a month (Education Data Initiative). The mean monthly payment across all borrowers is about $393, while the median is $222, because a small number of six-figure balances pull the average up (Federal Reserve SHED data via CollegeHelpGuide). About 52.4% of federal borrowers owe $20,000 or less. Enter your own loans below to see where you fall.
How the payment math works
Each loan’s required payment comes from the standard amortization formula: payment = P x r(1+r)^n / ((1+r)^n – 1), where P is the balance entering repayment, r is the monthly interest rate, and n is the number of monthly payments. Your combined monthly payment is the sum of the individual payments, and the weighted average rate is each loan’s rate weighted by its balance.
Two details most single-loan calculators get wrong:
- Grace periods: interest that accrues during grace capitalizes into the balance for unsubsidized, PLUS, and private loans. Federal Direct Subsidized loans accrue no interest during grace: the government pays it. This calculator charges grace interest only where it actually applies, compounded monthly.
- Graduated plans: the federal Graduated plan does not charge one flat payment. Payments start lower and rise about 7% every two years. This calculator builds that rising schedule and solves the starting payment so the present value of the schedule equals your balance. (A flat payment labeled “graduated” is not graduated at all.)
Worked example
Take one $20,000 loan at 6.5% on the 10-year Standard plan:
- Monthly payment: $227.10
- Total interest: $7,251.51
- Total repaid: $27,251.51
On the Graduated plan, the same loan starts at $200.93 a month and rises to $263.38 in the final two-year block, with total interest of $7,732.10: lower payments early, higher cost overall. Add an extra $100 a month targeted at the highest-rate loan and the loan clears in 75 months instead of 120, with interest of $4,357.59: a savings of about $2,893.92 and 45 months.
>The three federal repayment plans, honestly compared
Standard is a fixed payment over 10 years (up to 30 for consolidation loans). It has the highest monthly payment and the lowest total interest: the cheapest way to be debt-free if you can afford it. Graduated starts about 10 to 15% lower and rises every two years, which helps early-career budgets but costs more interest over the same term. Extended stretches repayment to 25 years, cutting the monthly payment roughly in half versus Standard but roughly doubling total interest; federally, it generally requires more than $30,000 in loans. Income-driven plans (which cap payments as a share of discretionary income and forgive balances after 20 to 25 years) are a separate system this calculator does not model: use your servicer's estimator for those.
Avalanche vs snowball: where extra money should go
Avalanche aims every extra dollar at the highest interest rate first. It always minimizes total interest: math does not care about your feelings. Snowball aims extra dollars at the smallest balance first, clearing whole loans faster for a psychological win, at a small interest cost. The calculator runs both simulations on your actual loans and shows the dollar difference, so you can decide whether the motivational boost is worth the price. In most cases the gap is a few hundred dollars, not thousands.
The student loan interest deduction
You may deduct up to $2,500 a year in student loan interest on your federal taxes, subject to income limits, which trims the effective cost of your loans slightly. The calculator shows pre-tax figures; your tax software or preparer applies the deduction.
What this calculator does not do
This is a planning estimate, not financial or tax advice. It assumes fixed interest rates, on-time payments, and no deferment, forbearance, or income-driven adjustments. Private loan terms vary by lender. Variable-rate loans, origination fees, and late fees are not modeled. Confirm your exact payoff figures with your loan servicer before making decisions.
Frequently asked questions
What is the average student loan payment?
National figures cluster around $390 to $450 a month on average, with a median near $222: half of borrowers pay $222 or less. The average federal loan debt is about $39,547, which costs roughly $449.65 a month over 10 years at the 2025-26 federal rate of 6.39%. Your payment depends on your balance, rate, term, and plan, which is what the calculator above computes.
How is a student loan monthly payment calculated?
With the amortization formula: payment = P x r(1+r)^n / ((1+r)^n - 1), where P is the balance entering repayment, r is the monthly interest rate (annual rate divided by 12), and n is the number of payments. Multiple loans each get their own payment, and your total is the sum.
Does interest accrue during the grace period?
For Federal Direct Subsidized loans, no: the government pays the interest during grace. For unsubsidized, PLUS, and private loans, interest accrues and capitalizes into the balance, so you start repayment owing more than you borrowed.
Is graduated repayment a good idea?
It lowers your payment early in your career when income is typically lowest, but you pay more interest overall than on the Standard plan. It suits borrowers who expect strong income growth; otherwise Standard is cheaper.
Should I use avalanche or snowball?
Avalanche (highest rate first) always minimizes total interest. Snowball (smallest balance first) clears individual loans sooner, which some borrowers find motivating. The calculator shows both outcomes on your loans so you can see the exact cost difference.
How much does an extra $100 a month save?
On a $20,000 loan at 6.5% over 10 years, an extra $100 a month cuts the payoff from 120 to 75 months and saves about $2,894 in interest. Savings scale with your balance and rate: run your numbers above.
Can I deduct student loan interest on taxes?
Generally yes, up to $2,500 per year, subject to income limits. It is an above-the-line deduction, so you can claim it even without itemizing.