Calculator inputs

Enter the loan amount, annual interest rate, and loan term to estimate monthly repayments.

Enter the amount in the currency you are using. Keep the same currency across money fields.

Enter the annual percentage rate, not a decimal. For example, enter 6.5 for 6.5%.

Enter the length of the period using the unit shown in the label.

Result
Enter a value to begin

Formula

monthly repayment = P × r × (1 + r)^n ÷ ((1 + r)^n - 1)
P = loan amount
r = monthly interest rate
n = total monthly repayments

Example: A $300,000 loan at 6% over 30 years has an estimated monthly repayment of about $1,798.65.

Worked examples

$20,000 at 7% over 5 years = about $396.02 per month

$300,000 at 6% over 30 years = about $1,798.65 per month

$500,000 at 5.5% over 25 years = about $3,070.34 per month

How to use a loan repayment estimate

Use this tool to compare repayment sizes before applying for a personal loan, car loan, or other fixed-term borrowing. Small changes in rate or term can make a noticeable difference to monthly cash flow, so it helps to test a few scenarios before you commit.

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Loan repayment planning tips

Loan repayments can look manageable at first, but the total interest cost can change significantly when the rate or term changes. Use this calculator to test a realistic payment range before applying, then compare that monthly figure against your regular income, rent or mortgage costs, bills, and emergency savings.

For shorter loans such as car loans and personal loans, the loan term has a major impact on the payment. A longer term may reduce the monthly amount, but it can also mean paying interest for longer. A shorter term may cost more each month but can reduce the total interest paid.

What to check before taking a loan

  • Whether the repayment still fits your budget if your income changes.
  • Whether there are establishment fees, account fees, or early repayment fees.
  • Whether the rate is fixed, variable, introductory, or comparison-rate based.
  • Whether paying extra would reduce interest without penalties.

Related tools that may help include the Debt Payoff Calculator, Credit Card Payoff Calculator, and Compound Interest Calculator.

Compare borrowing from several angles

A loan repayment amount is only one part of the decision. Compare the result with debt payoff time, debt-to-income ratio, credit-card payoff, and mortgage repayment when relevant.

Important: Finance calculators are estimates only. Check real lender, bank, tax, investment, or adviser information before making decisions.

Loan repayment calculator FAQ

What affects my monthly loan repayment?

Your repayment depends mainly on the loan amount, interest rate, and loan term. Higher rates and larger balances usually increase the monthly payment.

Can I use this for car loans and personal loans?

Yes. This calculator works well for standard amortising loans where you repay principal and interest over a fixed term.

What is the difference between this and the mortgage calculator?

The Mortgage Calculator is aimed at home loans and also highlights total repayment and total interest for longer borrowing periods.

Accuracy and use of results

CalculatorWorks aims to make calculations clear and practical. We use standard calculation methods where possible, explain assumptions in plain language, and encourage users to verify important results before relying on them.

How to compare loan repayments properly

A repayment estimate is most useful when you compare more than one borrowing scenario. The same loan amount can feel very different depending on the interest rate, repayment term, fees, and whether you make extra repayments. Use this calculator to test the monthly payment first, then compare the total interest cost before deciding which loan structure is realistic.

What the repayment result tells you

  • Monthly affordability: whether the repayment fits comfortably within your income and expenses.
  • Total interest pressure: how much the loan term and rate increase the overall cost.
  • Term trade-off: shorter loans usually cost less interest but require larger repayments.
  • Stress testing: whether the repayment would still be manageable if income or expenses changed.

Practical example

For example, a $30,000 loan over five years at 8% has a very different total cost than the same loan over seven years. The longer term may lower the monthly payment, but it normally increases the total interest paid. That is why it is important to compare both the repayment and the total cost.

Before relying on a loan estimate

Check whether the lender charges establishment fees, monthly fees, early repayment fees, or different comparison rates. CalculatorWorks gives a planning estimate; the final cost should always be checked against the lender’s official quote.

Most financial decisions need more than one number. After calculating this result, compare nearby scenarios with related CalculatorWorks tools so you can understand affordability, repayment pressure, savings growth and total cost from several angles.