Loan Calculator

Compute monthly payment, total interest, and payoff date for amortizing loans. Supports standard amortization, interest-only periods, and bond-style...

Modify the values and click the Calculate button to use.
Results

Enter values and click Calculate.

Schedule

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Introduction

Compute monthly payment, total interest, and payoff date for amortizing loans. Supports standard amortization, interest-only periods, and bond-style structures depending on the options in the form.

General Loan Calculator

Compute monthly payment, total interest, and payoff date for amortizing loans. Supports standard amortization, interest-only periods, and bond-style structures depending on the options in the form.

Amortizing Loans

Each payment covers accrued interest first; the remainder reduces principal. The schedule shows how the mix shifts over time—mostly interest early, mostly principal late.

Comparing Offers

APR, term length, and fees together determine true cost. A lower payment on a longer term can still mean more total interest. Compare at least two lender quotes side by side.

Related Tools

Payment Calculator, Personal Loan Calculator, Repayment Calculator, Business Loan Calculator.

How It Works

  1. Enter your amounts, rates, and term in the form. Use the same units shown in the labels (dollars, years, percent).
  2. Click Calculate to run the Loan Calculator engine. Invalid or empty required fields show a clear error message.
  3. Review the summary cards for the key outputs. Expand schedules or tables when available for period-by-period detail.
  4. Copy, print, or share your scenario link. Reset the form anytime to start a fresh comparison.

Formula

Monthly payment (amortizing loan): M = P * [r(1+r)^n] / [(1+r)^n - 1], where P is principal, r is monthly rate (APR/12), and n is number of months.

FAQ

Yes. CDCalculator.io provides the Loan Calculator at no charge for personal and educational use. Results are estimates and not financial advice.

The tool uses standard formulas lenders and planners use in spreadsheets. Your bank may round differently or include fees not modeled here.

Use the Copy Results and Print buttons on the calculator panel after you run a scenario. You can also share the page link with colleagues.

Focus on realistic rates, terms, and any extra payments or contributions. Small changes in APR or time horizon often move outcomes more than rounding.

No. Use this calculator to explore scenarios, then consult a qualified advisor or lender for decisions about other financial products.