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What information is needed?
Prepare the loan amount, monthly interest rate, term in months and known extra fees. Enter the bank’s monthly rate, not an annual rate; current bank rates are not selected automatically.
Equal-payment method
The calculator assumes fixed monthly interest and equal end-of-month payments. For principal P, monthly rate r and n months, the instalment is P × r / [1 − (1 + r) to the power of −n]. At zero interest, principal is divided by the number of months.
Columns in the schedule
Monthly interest is calculated on the remaining principal. The non-interest part reduces principal. The schedule shows month, payment, principal, interest and balance. Small differences can result from rounding.
Extra costs and scope
Entered fees and insurance are added to total cost, not spread into the instalment. Early repayment, variable rates and different first-payment dates are outside this model. It is not a bank offer.
Example
With a TRY 100,000 loan, 1% monthly interest and 12 months, the instalment is approximately TRY 8,884.88, total instalments TRY 106,618.55 and interest TRY 6,618.55. A TRY 500 fee makes total payment TRY 107,118.55.