Quick start
- Open the Student Loan Calculator.
- Enter the current loan balance, not the original amount if you have already paid some down.
- Enter the annual interest rate from StudentAid.gov, your servicer, or your private-loan agreement.
- Use a standard repayment term such as 10 years, then add extra monthly payment only if you can really keep sending it.
- Calculate, then compare scheduled payment, payoff time, total interest, and interest saved before checking official plans.
Best uses
Start here if one of these sounds like your job. The examples below show which inputs matter most.
- Estimate a standard student loan payment from balance, rate, and term.
- See how an extra payment may reduce payoff time.
- Estimate interest cost before choosing a repayment strategy.
- Compare simplified repayment scenarios before using Federal Student Aid Loan Simulator or asking a servicer.
What this calculator is for
The Student Loan Calculator estimates one standard fixed-payment student loan path. It helps you see the payment math before you compare official Federal Student Aid or servicer options.
Use it when you want a quick standard student-loan payment estimate before you compare official federal repayment plans, private lender terms, or a servicer quote.
What to enter
Student-loan estimates get shaky when official-plan rules and simple loan math are mixed together. Keep balance, annual rate, term, and extra payment separate, then check Federal Student Aid or your servicer for the real plan.
- Enter the current loan balance, not the original amount if you have already paid some down.
- Enter the annual interest rate from StudentAid.gov, your servicer, or your private-loan agreement.
- Enter the standard repayment term in years, such as 10 years for a simple standard-plan comparison.
- Enter extra monthly payment only if you can really send that extra money every month.
Example walkthrough
Try the starter example: $30,000 balance, 6.5% annual rate, 10 years, and $50 extra each month. The scheduled payment is about $340.64. With the extra $50, the estimate is a 100-month payoff, about $8,892.17 interest, about $38,892.17 total paid, and about $1,985.10 interest saved.
- $30,000 at 6.5% for 10 years creates a scheduled payment near $340.64.
- Adding $50 extra per month makes the simulated payment about $390.64, pays the loan off in about 100 months, and saves about $1,985.10 in interest.
Formula and steps
In plain language: The calculator uses the fixed-payment loan formula for the scheduled monthly payment, then simulates monthly interest and principal reduction again with any extra payment added. For the starter example, $30,000 at 6.5% over 10 years gives a scheduled payment near $340.64. Adding $50 makes the simulated monthly payment about $390.64.
Start with the fixed-payment loan formula. The calculator turns the annual rate into a monthly rate, finds the scheduled payment for the term, then adds extra payment and simulates the balance month by month. It does not choose or price official federal repayment plans.
How to read the answer
Start with scheduled payment, then check payoff time, total interest, and interest saved. If the lower payment looks nice but total interest looks heavy, compare the result with an official plan before making changes.
- Scheduled payment is the estimated fixed payment before any extra amount.
- Monthly paid with extra shows the scheduled payment plus the extra monthly amount.
- Payoff time shows how long the extra-payment path may take.
- Interest saved compares the extra-payment path with the standard scheduled path.
Common mistakes to avoid
Most bad student-loan estimates come from using the wrong rate, old balance, wrong term, or assuming this page can model IDR, forgiveness, deferment, forbearance, capitalization, subsidies, private-loan fees, or servicer payment allocation.
- Do not treat this as an income-driven repayment, forgiveness, deferment, forbearance, consolidation, refinance, or servicer quote.
- Do not ignore capitalization, subsidies, fees, payment pauses, auto-pay discounts, variable rates, or federal program rules.
- Do not assume extra payments are handled the same way by every servicer or private lender.
What to try next
A related tool can help after the student-loan estimate. The next question is usually a plain fixed-loan payment, a fuller amortization schedule, or a general payoff test.
- Use Loan Calculator for a plain fixed loan payment.
- Use Repayment Calculator for a general balance payoff estimate.
- Use Amortization Calculator if you want a fuller payment schedule.
Sources and estimate notes
Federal Student Aid sources are useful because official federal student loan choices depend on loan type, interest rate, repayment plan, deferment, forbearance, and servicer rules. CFPB sources help separate federal loans from private loans so this page stays honest about what simple payment math can and cannot answer.
This calculator still stays simple. It does not choose an IDR plan, model forgiveness, apply subsidies, handle deferment or forbearance, capitalize interest, check auto-pay discounts, read private-loan fees, or replace Federal Student Aid Loan Simulator or your servicer.
Worked examples for Student Loan Calculator
$340.64 scheduled payment, 100-month payoff with extra, about $1,985.10 interest saved
$271.32/month and about $7,557.88 interest
78-month payoff and about $6,614.52 interest saved
FAQ in plain language
When should I use the Student Loan Calculator?
Use it when you want to test the exact inputs on this page: Estimate a standard student loan payment from balance, rate, and term. See how an extra payment may reduce payoff time. The result is a check against your assumptions, not proof that a lender, tax app, broker, platform, or provider will use the same number.
What do the main Student Loan Calculator inputs mean?
Loan balance means the current principal you still owe, not the original amount if you have already paid some down. Interest rate means the annual rate for this loan, entered as 6.5 for 6.5%, not as 0.065. Repayment term means the standard fixed-payment term in years, such as 10 years for a basic standard-plan comparison. Extra monthly payment means extra money you plan to send each month on top of the scheduled payment.
Is this the same as the Federal Student Aid Loan Simulator?
No. This page only does fixed-payment loan math from the numbers you enter. Federal Student Aid Loan Simulator can compare official federal repayment options, IDR plans, forgiveness paths, deferment, forbearance, and other rules this calculator does not model.
What does the $50 extra payment do in the example?
With $30,000 at 6.5% for 10 years, the scheduled payment is about $340.64. Adding $50 makes the monthly amount about $390.64, estimates a 100-month payoff, and saves about $1,985.10 in interest compared with the standard 120-month path.
What rate should I enter for a federal student loan?
Use the rate from StudentAid.gov or your servicer. Federal student loan rates depend on loan type and first disbursement date. The 6.5% starter example is only a clean test number, not a current-rate promise.
Can I use this for private student loans?
You can use it for simple fixed-rate payment math, but private loans can have lender rules, fees, variable rates, refinance terms, and payment allocation rules this page does not know. Check the lender agreement before acting.
What is the Student Loan Calculator doing with my numbers?
In plain language: The calculator uses the fixed-payment loan formula for the scheduled monthly payment, then simulates monthly interest and principal reduction again with any extra payment added. For the starter example, $30,000 at 6.5% over 10 years gives a scheduled payment near $340.64. Adding $50 makes the simulated monthly payment about $390.64.
Related tools
- Loan Calculator Estimate a fixed monthly loan payment, total paid, and total interest from amount, rate, and term.
- Amortization Calculator Estimate payoff time, total interest, and extra-payment savings.
- Repayment Calculator Estimate payoff time, interest, total paid, and final payment for one fixed balance.
Keep exploring
If this guide is close but not exact, these links keep you near the same kind of problem.
- Finance Browse the full category for related tools that help with the same job.
- All free tools Search the complete Access Free Tools library by task, category, or tool name.
- All calculator and utility guides Find more plain-language examples, formulas, mistakes, and result explanations.
- Free calculator resources Start here when you are not sure which calculator page fits.
Privacy and copying results
Recent answers stay visible only while you work in the current browser tab. They are not sent to a server.
Use Copy answer when you want to save the inputs and result in notes, homework, a message, or a project list. Check the units, labels, and limits before copying.