Student Loan Payment Calculator

How it works

A student loan payment is a fixed monthly amount that clears the balance over the term, set by the standard amortized loan formula:

With the defaults, $30,000 at 6% over 10 years is about $333 a month, with roughly $10,000 paid in interest across the loan. A longer term lowers the monthly payment but raises the total interest, so the two move in opposite directions.

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A worked example: $30,000 at 6% over 10 years

Picture a new graduate carrying $30,000 in loans at 6%, set on a standard 10-year plan. The calculator puts the bill at $333/month, steady for all 120 payments.

Stretch that across the full term and you repay $39,967, which means $9,967 goes to interest on top of what you borrowed. That interest is the price of spreading the balance over a decade instead of paying it down faster.

Rate matters more than it looks. A subsidized loan at 5% drops the payment to $318/month, while a private loan at 8% pushes it to $364, a $46 gap every month for the same balance. Plug in your own loan and rate to see where you land.

Term versus total cost

Stretching a student loan over more years makes each payment smaller and easier to fit into a starting salary, but it means paying interest for longer and more of it overall. A shorter term costs more each month and far less in total. Many borrowers start on a standard term and pay extra when their income allows, getting the best of both.

What sets your monthly payment

Three numbers decide the payment, and knowing how each pulls helps you shape a loan you can live with:

• The amount borrowed. The most direct lever. Borrowing less, by leaning on grants, savings, or a cheaper school, lowers every payment for the whole term.
• The interest rate. A higher rate raises the payment and, more sharply, the total interest. Even a small difference in rate matters over many years.
• The term. A longer term shrinks each payment but stretches interest across more years, so the monthly relief comes at a higher lifetime cost.

Only the term is fully in your hands once the loan is set, which is why the trade-off between an affordable payment and a lower total is the main decision this calculator helps you weigh.

Standard versus income-driven repayment

Government student loans often come with more than one way to pay them back, and the choice changes both the monthly figure and the total. A standard schedule, like the one this calculator models, sets a fixed payment that clears the loan over a set term.

Income-driven plans instead cap the payment at a share of your earnings, which can bring real relief early in a career or when income is low. The trade-off is that lower payments can stretch the loan over more years and add interest along the way, and any balance forgiven at the end may come with its own rules. Use this calculator to see the standard payment first, then compare it against any income-driven option your loans offer, so you know what the lower payment actually costs over time.

Federal versus private loans

Not all student loans behave the same way, and the type you hold shapes both your rate and your options if money gets tight:

• Government loans. Rates are typically set rather than credit-based, and the loans often carry protections like income-driven plans, deferment, and sometimes forgiveness.
• Private loans. Rates depend on credit and the lender, can be fixed or variable, and usually come with fewer built-in protections if you fall on hard times.

Enter the actual rate on your loan for a payment you can trust, and keep the differences in mind before refinancing government debt into a private loan, since a lower rate can mean giving up protections you might later need.

A worked example: choosing a shorter term

The default of a ten-year term is a common starting point, but shortening it reshapes the trade-off. Compare the same loan and rate over different lengths:

• A longer term. Each payment is smaller and easier to fit around a starting salary, but you pay interest for more years and more of it overall.
• A shorter term. The payment rises noticeably, yet the total interest can fall by a large margin because the balance clears faster.
• The rate compounds the effect. On top of the term, a lower rate, whether from a subsidized loan or a strong credit profile, shrinks both the payment and the interest at the same time.
• Borrowing less beats any term. The surest way to a smaller payment is a smaller loan, so grants, savings, and a cheaper school do more than any repayment tweak.

Slide the term up and down and watch both numbers move in opposite directions. A popular middle path is to take a manageable standard term, then pay extra whenever income allows, which captures much of the saving without locking in a payment you cannot meet. Try a couple of terms and rates side by side, and you can usually find a payment that fits your budget without piling on years of extra interest.