How is a standard student loan payment calculated?

Standard student loan repayment uses the amortization formula M = P[r(1+r)^n] / [(1+r)^n - 1], producing the same monthly payment for the full term. P is the loan balance, r is the monthly rate, and n is the number of months. The default standard term is 10 years (120 months).

What is a common repayment term for student loans?

The standard repayment plan typically uses a 10-year term, but extended plans can run 20 to 25 years. Longer terms produce smaller monthly payments and significantly more total interest.

Should I include capitalized interest in the loan amount?

Yes, if interest has accrued and been added to the principal. Enter the current loan balance, including any capitalized interest, as the loan amount. The calculator does not model deferment or income-driven plans.

Is my data shared with any server?

All math runs in your browser. The loan amount, rate, and term you enter stay on your device.

Student Loan Calculator

Calculate the standard monthly payment and total interest on a student loan. Enter the loan amount, annual interest rate, and repayment term. The tool uses the standard 10-year amortization formula by default and runs locally in your browser.

Loan type

Currency

Loan amount

Interest rate (% per year)

Term

Formula: M = P[r(1+r)^n] / [(1+r)^n - 1], where P = loan amount, r = monthly rate, n = months

Monthly payment

$296.75

Total interest: $10,610.53
Total paid: $35,610.53
Loan amount: $25,000.00
Number of payments: 120

Where your money goes over the loan term

Principal

Interest

$25,000.00 principal$10,610.53 interest

Calculations are estimates for informational purposes only. Consult a financial professional for advice.

How it works

The monthly payment uses the standard amortization formula M = P[r(1+r)^n] / [(1+r)^n - 1], where P is the loan amount, r is the monthly interest rate (annual rate divided by 12), and n is the term in months. Total interest is the sum of monthly payments minus the original principal, and the principal-vs-interest bar shows the share of total cost that goes to each.

Processing runs in your browser

Every calculation runs locally in your browser as JavaScript. The loan amount, rate, and term you enter stay on your device.

Calculations are estimates for informational purposes only. Consult a financial professional for advice.

Frequently asked questions

How is a standard student loan payment calculated?: Standard student loan repayment uses the amortization formula M = P[r(1+r)^n] / [(1+r)^n - 1], producing the same monthly payment for the full term. P is the loan balance, r is the monthly rate, and n is the number of months. The default standard term is 10 years (120 months).
What is a common repayment term for student loans?: The standard repayment plan typically uses a 10-year term, but extended plans can run 20 to 25 years. Longer terms produce smaller monthly payments and significantly more total interest.
Should I include capitalized interest in the loan amount?: Yes, if interest has accrued and been added to the principal. Enter the current loan balance, including any capitalized interest, as the loan amount. The calculator does not model deferment or income-driven plans.
Is my data shared with any server?: All math runs in your browser. The loan amount, rate, and term you enter stay on your device.

Last reviewed May 26, 2026

Student Loan Calculator

How it works

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Frequently asked questions

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