Loan Calculator

Choose a display currency, then enter the amount actually financed, fixed annual note rate, and repayment term. The scheduled monthly payment updates automatically.

Add an optional extra principal amount to compare an accelerated repayment plan with the standard schedule. The result shows interest saved and how much sooner the modeled loan reaches zero.

The first payment date labels the schedule. Use the expandable loan breakdown to inspect principal and interest, paginate through payments, print the report, or export the complete schedule as CSV.

The scheduled monthly payment is calculated from the original principal, fixed rate, and repayment term. It is the payment required by the calculator's standard amortization model.

The planned monthly amount equals the scheduled payment plus the extra principal you enter. Keeping these values separate prevents an optional early-payoff strategy from being mistaken for the normal scheduled payment.

The final payment can be smaller because it is limited to the remaining principal plus that month's modeled interest.

Every modeled month begins with the remaining principal balance. Interest is calculated on that balance, then the scheduled payment covers interest before reducing principal.

Early payments usually contain more interest because the balance is highest near the beginning. As the balance falls, the interest charge becomes smaller and more of the same scheduled payment reduces principal.

The amortization schedule shows this change payment by payment and reports the remaining balance after each row.

Extra principal reduces the balance earlier. Future interest is then calculated on a smaller amount, which can reduce total interest and shorten the repayment period.

The calculator runs a scheduled-only baseline and a second schedule using the entered extra amount. Savings are the difference between those two modeled schedules.

Confirm that the lender or servicer applies extra money to principal. Some products require special instructions, and a contract may include a prepayment fee or other restriction.

The note interest rate is the percentage used to calculate interest on the outstanding principal. This is the value required by the amortization formula.

APR is a broader disclosure that may include certain fees in addition to interest. A fee-inclusive APR should not automatically be substituted for the note rate when building a payment schedule.

When comparing real loan offers, review the payment, note rate, APR, fees, and total disclosures together.

The mathematical scheduled payment is rounded upward to the nearest cent so the modeled balance reaches zero no later than the entered term.

Interest, principal, and balances are then rounded to cents in each month. The last payment is reduced to the exact amount still due under the model.

A lender can use different rounding, daily simple interest, a different first-period length, or contract-specific servicing rules, so its schedule may not match cent for cent.

Payment one uses the entered first-payment date. Later rows retain the same day where the calendar permits it and use the last valid day in shorter months.

The date is a schedule label only. Interest is always modeled with the fixed annual rate divided by 12.

A loan that accrues interest from exact transaction dates requires a daily-interest calculation using the lender's day-count and payment-posting rules.

The result includes principal and modeled interest. It excludes origination fees, closing costs, taxes, insurance, add-on products, late charges, returned-payment fees, and prepayment penalties.

It also excludes variable rates, interest-only periods, balloon balances, payment holidays, deferments, missed payments, negative amortization, refinancing, and irregular payment dates.

Review the actual agreement and lender disclosures before borrowing, refinancing, or making a large extra payment.

The payment calculation and amortization schedule run locally in the browser.

Exporting CSV creates the file from the schedule already held on the device. The calculator does not need to upload the entered principal, rate, term, or extra-payment amount.

The displayed results are estimates and should not be treated as a lender approval, payoff statement, or legal interpretation of a contract.