Loan Interest Calculator: Estimate Your Payments & Total Loan Cost

Calculate Your Loan Interest & Monthly Payments

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years

Unlock financial clarity with our Loan Interest Calculator. Easily estimate your monthly loan payments, understand the total interest you'll pay, and see the full cost of your loan. Perfect for planning mortgages, auto loans, or personal financing decisions. Make informed choices about your borrowing!

Formula:

The monthly loan payment (PMT) is calculated using the following formula:

PMT = P * [ i(1 + i)n ] / [ (1 + i)n – 1 ]

  • P = Principal Loan Amount
  • i = Monthly Interest Rate (Annual Interest Rate / 100 / 12)
  • n = Total Number of Payments (Loan Term in Years * 12)

This formula helps determine the fixed payment required each month to fully amortize a loan over a set term.

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