Loan Interest Calculator

Enter the loan principal, annual rate, term, and repayment type to compare monthly payment and total interest before you borrow.

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Enter Loan Details

Enter the required loan details and press calculate to review the repayment estimate right away.

Results

Estimated Monthly Payment -
Total Interest -
Total Repayment -

Run the calculator to compare estimated results by repayment type.

Quick Guide to Repayment Types

What is annuity repayment?

You pay the same amount every month. Early payments carry a larger interest share, while later payments shift more toward principal.

What is equal principal repayment?

You repay the same amount of principal every month. The initial payment is higher, but the burden gradually declines over time.

What is bullet repayment?

You pay only interest during the term and repay the principal in one lump sum at maturity, so a larger amount is needed at the end.

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Related Guides

How Loan Interest Works

See how rate, term, and repayment type change your real borrowing cost.

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Annuity vs Equal Principal

Compare how the monthly payment changes over time to pick the structure that fits your cash flow.

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What to Check Before Borrowing

Review the items that change your actual cost, such as prepayment fees, discounted rates, and repayment capacity.

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FAQ

Common questions users check before using the loan interest calculator.