How is the monthly repayment calculated?

Using the standard amortising loan formula M = P × r(1+r)^n / ((1+r)^n − 1), where P is the principal, r is the monthly interest rate, and n is the total number of payments.

Does this include fees or insurance?

No. This calculator shows principal and interest only. Lender fees, mortgage insurance, and property taxes are not included.

What is amortisation?

Paying off a loan in equal periodic instalments where each payment covers the interest accrued that period plus a portion of the principal.

💳

Loan & Mortgage Calculator

Calculate your monthly repayment, total interest paid, and view a full amortisation schedule for any loan or mortgage.

Loan Details

Loan Amount $500,000

Rate (%) 6.5%

Term (yrs) 30 yrs

Currency

Results

—

Monthly Payment

—

Total Repaid

—

Total Interest

Principal

Interest

Year	Principal	Interest	Balance

How to use

Drag the sliders or edit the numbers to set your loan amount, rate, and term.
Monthly payment, total repaid, and total interest update instantly along with the principal-vs-interest pie.
Toggle the amortisation schedule to see how the split shifts year over year.

FAQ

The standard amortising-loan formula M = P × r(1+r)ⁿ / ((1+r)ⁿ − 1), where P is the principal, r is the monthly rate, and n is the total number of payments.

No. Only principal and interest are shown. Lender fees, mortgage insurance, and property taxes need to be added separately.

The interest portion is proportional to the outstanding balance. Early in the loan the balance is highest, so most of each payment goes to interest before the principal starts paying down faster.