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Student Loan Calculator

Use this student loan calculator to compare payment, payoff, or borrowing scenarios for student loan.

Primary answer
Monthly payment
Inputs to verify
Current loan balance, Capitalized interest, and Annual interest rate
Use type
Use as an estimate that depends on assumptions.
Keyword intent
student loan calculator

Calculator

Student Loan Calculator

Calculates monthly payment from current loan balance, capitalized interest, annual interest rate. Defaults are filled in so you can review a working example before changing inputs.

USD

Outstanding principal before any user-entered capitalized interest.

USD

Unpaid interest added to principal before repayment. Enter 0 if none.

%

Use 5.5 for 5.5%. Current federal and private rates are not looked up.

months

Whole number of monthly end-of-period payments.

days

Used only for the simple daily-interest estimate.

Result

Result reflects the current submitted inputs.

  • Risk B
  • Reviewed 2026-05-26
  • 4 sources
Monthly payment325.58 USD
Principal used for repayment30,000 USD
Total payment39,069.46 USD
Total interest9,069.46 USD
Daily simple interest4.52 USD/day
Interest for selected days135.52 USD
Monthly periodic rate0.458333%

Breakdown

Capitalized interest added
0 USD
Monthly periodic rate
0.4583%
Days used for interest estimate
30
  • All rates, balances, terms, and capitalized interest amounts are user inputs.
  • This calculator models a simplified fixed monthly repayment, not income-driven repayment, forgiveness, deferment, subsidy, consolidation, or current federal program eligibility.
  • Capitalized interest is added to principal before repayment.
  • Daily interest is a simple-interest estimate using a 365.25-day year.
  • Payments are assumed monthly and due at the end of each period.
  • This is an educational estimate, not financial advice, an official servicer payoff quote, or a federal repayment-plan determination.

Accuracy notes

Risk level
B
Reviewed
2026-05-26
Sources
4
Primary result
Monthly payment

Formula logic is kept in a pure calculator module with fixtures, source notes, and page-visible assumptions.

Categories

What the result means

Use Monthly payment as the headline answer for student loan. Fixed monthly payment on principal plus capitalized interest. Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Use principal used for repayment, total payment, and total interest to explain why monthly payment moved when an input changed. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

Monthly paymentFixed monthly payment on principal plus capitalized interest.
Principal used for repaymentCurrent balance plus user-entered capitalized interest.
Total paymentUnrounded monthly payment multiplied by the number of payments.
Total interestTotal payment minus the repayment principal.

Use the result this way

  1. Start with Monthly payment, then use supporting outputs only to explain the primary answer.
  2. Verify current loan balance, capitalized interest, and annual interest rate before copying the result.
  3. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.
  4. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

User job

How to use this calculator

Use Student Loan Calculator when you need monthly payment, then use principal used for repayment and total payment to check the context for planning conversations, quote comparisons, payment checks, and scenario review.

Best for

  • Comparing one financial scenario with another
  • Preparing questions for a lender, advisor, or statement review
  • Reviewing a default example before entering your own current loan balance and capitalized interest.

Check before relying

  • Verify rates, fees, timing, taxes, and local rules against official documents before acting.
  • All rates, balances, terms, and capitalized interest amounts are user inputs.
  • This calculator models a simplified fixed monthly repayment, not income-driven repayment, forgiveness, deferment, subsidy, consolidation, or current federal program eligibility.
  • Source context: Edfinancial Services, an official servicer of Federal Student Aid, reviewed 2026-05-26.

Next useful step

  • Home Equity Loan CalculatorUse next when the borrowing comparison needs home equity loan inputs such as home value and current mortgage balance.
  • Mortgage Amortization CalculatorUse next when the borrowing comparison needs mortgage amortization inputs such as loan amount and annual interest rate.
  • Mortgage CalculatorUse next when the borrowing task needs estimated total monthly payment instead of monthly payment.

Formula

Generic fixed student-loan repayment uses the standard amortized-loan payment formula on balance plus capitalized interest; daily interest uses principal times annual rate divided by 365.25. Key assumptions: All rates, balances, terms, and capitalized interest amounts are user inputs. This calculator models a simplified fixed monthly repayment, not income-driven repayment, forgiveness, deferment, subsidy, consolidation, or current federal program eligibility. Capitalized interest is added to principal before repayment.

  • Generic fixed student-loan repayment uses the standard amortized-loan payment formula on balance plus capitalized interest; daily interest uses principal times annual rate divided by 365.25.
  • All rates, balances, terms, and capitalized interest amounts are user inputs.
  • This calculator models a simplified fixed monthly repayment, not income-driven repayment, forgiveness, deferment, subsidy, consolidation, or current federal program eligibility.
  • Primary source context: Edfinancial Services, an official servicer of Federal Student Aid.

Inputs

Enter current loan balance, capitalized interest, annual interest rate, and repayment term for planning conversations, scenario checks, and lender or statement comparison. Before calculating, keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise. Current loan balance: Outstanding principal before any user-entered capitalized interest. Capitalized interest: Unpaid interest added to principal before repayment. Enter 0 if none. Annual interest rate: Use 5.5 for 5.5%. Current federal and private rates are not looked up.

Current loan balanceOutstanding principal before any user-entered capitalized interest.
Capitalized interestUnpaid interest added to principal before repayment. Enter 0 if none.
Annual interest rateUse 5.5 for 5.5%. Current federal and private rates are not looked up.
Repayment termWhole number of monthly end-of-period payments.
Days for interest estimateUsed only for the simple daily-interest estimate.

Example

Using the default inputs, Student Loan Calculator returns monthly payment of 325.58 USD. Adjust current loan balance, capitalized interest, annual interest rate, and repayment term to match your own scenario.

FAQ

How is monthly payment calculated here?

Generic fixed student-loan repayment uses the standard amortized-loan payment formula on balance plus capitalized interest; daily interest uses principal times annual rate divided by 365.25. The first assumption to check is: All rates, balances, terms, and capitalized interest amounts are user inputs.

What does Monthly payment mean for student loan?

Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Secondary values such as principal used for repayment, total payment, and total interest are there to explain the primary answer, not to replace it.

What should I enter for Current loan balance?

Outstanding principal before any user-entered capitalized interest. Use USD for this field. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.

How does Capitalized interest change monthly payment?

Unpaid interest added to principal before repayment. Enter 0 if none. Changing it can alter monthly payment because the formula uses the submitted inputs together. Also compare APR period, compounding, fees, payment timing, taxes, insurance, and extra-payment assumptions.

Why does the student loan example show 325.58 USD for monthly payment?

The default inputs produce 325.58 USD for monthly payment. Treat that as a format and scale check, then replace every default value with your own inputs.

What should I compare before using the student loan payment result?

Compare the rate period, payment timing, fees, taxes, escrow items, payoff assumptions, and the actual quote or statement that governs the decision.

Sources

Last reviewed: 2026-05-26

  • Reviewed 2026-05-26
    Payments, Interest, and FeesEdfinancial Services, an official servicer of Federal Student Aid. Daily simple-interest formula, 365.25-day denominator, published daily-interest example, capitalization assumptions, and disclaimer boundaries.
    Scope
    Federal Student Aid servicer guidance for student-loan simple interest, daily interest accrual, capitalization, and payment allocation notes.
    Supports
    Daily simple-interest formula, 365.25-day denominator, published daily-interest example, capitalization assumptions, and disclaimer boundaries.
  • Reviewed 2026-05-26
    Federal Student Loans: Repaying Your LoansFederal Student Aid, U.S. Department of Education. Definitions of principal, interest, capitalization, repayment schedules, and the need to use official tools or servicers for plan-specific estimates.
    Scope
    Official federal student loan repayment guide.
    Supports
    Definitions of principal, interest, capitalization, repayment schedules, and the need to use official tools or servicers for plan-specific estimates.
  • Reviewed 2026-05-26
    Paying Off Your Loans: Loan AmortizationMississippi State University Extension Service. Standard fixed-payment formula and principal/interest payment split.
    Scope
    Educational finance reference for fixed-payment loan amortization.
    Supports
    Standard fixed-payment formula and principal/interest payment split.
  • Reviewed 2026-05-26
    PMT functionMicrosoft Support. Constant-payment loan behavior, monthly rate consistency, end-of-period payment timing, and exclusion of taxes/reserves/fees.
    Scope
    Financial function documentation for fixed payments and constant interest rate loans.
    Supports
    Constant-payment loan behavior, monthly rate consistency, end-of-period payment timing, and exclusion of taxes/reserves/fees.

Disclaimer

This borrowing calculator is for educational payment and payoff estimates only. It is not a lender quote, credit approval, legal disclosure, tax advice, or a substitute for reviewing contracts, fees, escrow items, and local rules.