Free Mortgage Refinance Calculator

Mortgage refinancing refers to the process of replacing an existing home loan with a new one. This is typically done to secure a lower interest rate, change the loan term, or tap into home equity.

Individuals who are interested in mortgage refinancing often use a refinance calculator to evaluate whether refinancing aligns with their financial goals. The tool compares their existing mortgage with a proposed new loan to estimate payment differences, interest savings, and how long it could take to recover refinancing costs. Note that results obtained from a refinance calculator are estimates only and do not constitute loan approval, guaranteed rates, or formal offers from any lender.

Common reasons to consider refinancing include lowering monthly payments, reducing total interest costs, shortening or extending the loan term, switching from an adjustable-rate to a fixed-rate mortgage, or withdrawing equity for other purposes.

How the Refinance Calculator Works

This planning tool works by comparing your current mortgage details with the terms of a potential new loan. Generally, you provide information about both loans, and the tool will generate a side-by-side comparison of costs and savings.

Typical inputs required when using a refinance calculator include the following:

The following are step-by-step instructions to use a mortgage refinance calculator:

• Enter your current mortgage details, including remaining balance, monthly payment, and interest rate.

• Input the estimated interest rate and term length for the new loan you are considering.

• Include anticipated closing costs and any points you plan to pay. If uncertain, use 2%-5% of your loan amount as a general estimate.

• Review the comparison results to see differences in monthly payments, total interest, upfront costs, and break-even timeline.

What the Calculator Compares

The mortgage refinancing tool provides a side-by-side comparison of your current loan and the proposed new loan. It evaluates:

• Current monthly payment versus new monthly payment

• Total interest paid on current loan versus new loan

• Upfront costs (closing fees and points)

• Break-even timeframe (months required to recover costs through savings)

What Your Refinance Results Mean

The following results are obtained from using a mortgage refinance calculator:

• New Monthly Payment (Estimate): The estimated principal and interest payment based on the new loan terms you entered.

• Monthly Savings (or Increase): The difference between your current monthly payment and the new estimated payment. A positive number indicates savings; a negative number indicates an increase.

• Upfront Costs: The total estimated refinancing fees and points you included in your inputs.

• Break-Even Point (Months to Recoup Costs): The number of months required for cumulative monthly savings to equal the upfront refinancing costs. After this point, continued savings contribute to net benefit.

• Total Interest Difference: The estimated change in total interest paid over the full term of the loan when comparing the current loan to the new loan. This can be positive or negative.

• Total Lifetime Savings (if shown): The estimated net financial difference over the life of the loan after accounting for upfront costs. This figure can be negative if costs exceed long-term savings.

Note that certain key inputs have a major impact on your refinance estimates. For instance, the new interest rate is typically the most important factor, as even a small rate reduction can lead to significant long-term savings, especially for larger loans. However, this benefit is less significant if you extend the loan term or roll costs into the new balance.

Also, the loan term is an important factor in refinance results. Shorter terms, such as 15 years instead of 30, often come with lower interest rates and reduce the total interest you pay. However, they also increase your monthly payment. On the other hand, a longer term may lower your monthly payment but increase the total interest cost over the life of the loan.

Furthermore, closing costs and refinance fees directly impact your break-even point, as high upfront costs mean it takes longer for your monthly savings to recover the amount spent on refinancing. If you are not planning to stay in the home long enough to reach the break-even point, refinancing may not be worthwhile.

Lastly, if you are taking cash out, that is, borrowing more than your current loan balance, the added amount increases your loan size, which can reduce or eliminate the savings you are hoping to achieve.

How to Tell If a Refinance Is Worth It

A common way to evaluate whether refinancing is worthwhile is to consider the expected savings and the time needed to break even on the costs. The table below highlights how to quickly evaluate whether refinancing makes financial sense.

Refinancing only makes sense if you stay in the home long enough to recover the upfront costs. If the break-even point is longer than your expected time in the home, you may lose money. For example, saving $50 per month with $3,000 in closing costs would take five years to break even.

Note that the results shown by a mortgage refinance calculator are estimates. Therefore, whether refinancing is a good fit for you depends on personal factors such as how long you plan to stay in the home, current market rates, and your comfort level with financial risk.

Frequently Asked Questions