Refinance Calculator

Refinancing replaces your current mortgage with a new loan—usually to lower the rate, shorten the term, or tap equity. This calculator compares monthly...

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

Enter values and click Calculate.

Schedule

Introduction

Refinancing replaces your current mortgage with a new loan—usually to lower the rate, shorten the term, or tap equity. This calculator compares monthly payment, total interest, and break-even time against closing costs.

When Does Refinancing Make Sense?

Refinancing replaces your current mortgage with a new loan—usually to lower the rate, shorten the term, or tap equity. This calculator compares monthly payment, total interest, and break-even time against closing costs.

Rate-and-Term Refinance

Lowering APR reduces interest over the life of the loan. Shortening term (e.g., 30-year to 15-year) raises monthly payment but cuts total interest dramatically if you can afford the cash flow.

Break-Even Analysis

Divide total closing costs by monthly payment savings to estimate months until you recoup fees. Staying in the home past break-even is when refinancing typically pays off.

Cash-Out Refinance

Borrowing more than you owe and taking the difference in cash increases balance and resets amortization. Use funds for high-return purposes or necessary repairs—not discretionary spending without a plan.

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 Refinance 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

Future Value with compounding: FV = P(1 + r/n)^(nt). For periodic deposits, each contribution grows from its deposit date at the same periodic rate.

FAQ

Yes. CDCalculator.io provides the Refinance 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 mortgage & real estate products.