InovoTools
Finance

Loan Calculator: Monthly Payment and Total Interest

Enter the amount, interest rate and term to see the monthly payment, total interest and total repaid for a standard fixed-rate instalment loan. Use it to compare offers or to see how a longer term lowers the payment but raises the cost.

01

Your inputs

Start with the example, or enter your own values.

Processed in your browser. Your inputs stay on this device.

02

Your result

A little clarity, coming right up.

Make room for the answer.

Enter your values and run the tool. Your result will appear here.

How to use the Loan Calculator

Enter the loan amount, annual interest rate and loan term and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.

The formula

M = P × r ÷ (1 − (1 + r)^−n)

Examples

  • $25,000 at 7% for 5 years
    Monthly payment: $495.03
    Total of 60 payments: $29,701.80
    Total interest: $4,701.80
  • Same loan over 3 years
    Monthly payment: $771.93
    Total of 36 payments: $27,789.39
    Total interest: $2,789.39
  • $10,000 at 12% for 2 years
    Monthly payment: $470.73
    Total of 24 payments: $11,297.63
    Total interest: $1,297.63

Limitations and assumptions

Fixed-rate, fully amortizing loan with monthly payments. Lender fees, insurance and taxes are not included unless stated. Your lender's official disclosure takes precedence.

Frequently asked questions

How is the monthly payment calculated?

M = P × i × (1+i)^n ÷ ((1+i)^n − 1) with i the monthly interest rate and n the number of months.

Why is total interest so different between terms?

A longer term lowers the payment but you pay interest on the balance for more months.

Does it include fees?

No. Use the APR calculator to include origination fees.

Can I use it for car or personal loans?

Yes for the payment maths. The auto loan calculator also handles sales tax and trade-in.