Loan Amortization Schedule Calculator
Compute the periodic payment, total interest and the payoff curve for a fully amortizing loan.
Input Data
Loan amount.
Nominal annual rate (%).
Total loan term in years.
Periods per year (12 for monthly).
Results
4,490.45
616,560.88
1,616,560.88
Payment = 4490.45/period; total interest = 616560.88.
Remaining balance over time
At a glance:Fully amortizing: periodic rate i = annualRate/100/periodsPerYear, n = years×periodsPerYear; payment Pmt = P·i/(1−(1+i)^−n) (P/n if i=0). Total paid = Pmt×n, total interest = total paid − P.
Formula
i = annualRate/100/periodsPerYear.
n = years × periodsPerYear.
Pmt = P·i / (1 − (1+i)^−n).
Total interest = Pmt·n − P.
How to Use
- Enter principal, annual rate, term and periods per year.
- The tool returns payment, total interest, total paid and a payoff curve.
Case Studies
1,000,000, 3.5%, 30y, monthly → ~4490/period
i=0.0029167, n=360, Pmt≈4490; total interest≈616k.
FAQ
Annuity vs linear?
This tool uses equal payment (annuity) amortization.
Zero rate?
Payment = principal / n, no interest.
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References
Content reviewed by the Calculatorism editorial team. Results are for reference only; please refer to the relevant authorities for the official figures.