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Loan payment calculator

Use this loan calculator to estimate monthly payments, total interest and an amortization schedule. Compare repayment terms using your own rate and fees.

AI-generated scene of a couple planning a small home improvement in the Philippines

Your numbers

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Additional costs

Enter costs paid separately from your loan installments. Count each charge once.

How this calculation works

Reducing balance charges interest on the remaining principal. Add-on interest uses the original principal for each month. These percentages are not interchangeable. The schedule assumes equal monthly payments and no missed payments.

Compare interest methods

Reducing-balance interest is charged on the remaining principal; monthly add-on interest uses the original amount. Identical rate labels therefore need not produce identical borrowing costs.

For an illustrative ₱100,000 loan at 12% annual reducing-balance interest, extending repayment from 12 to 24 months lowers the payment from about ₱8,884.88 to ₱4,707.35. Total interest rises from about ₱6,618.55 to ₱12,976.33, before fees.

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Sources & assumptions

Formula-based scenario using your inputs. Example rates are not provider offers.

Sources reviewed 30 September 2026 · planning estimate

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