Mortgage Refinance Cash Out Calculator
Homeowners often build substantial equity over time as their property value increases and their mortgage balance decreases. That equity can potentially provide access to cash through a cash-out refinance. Instead of keeping the existing mortgage, a cash-out refinance replaces it with a larger mortgage, with the difference made available as cash.
Our Mortgage Refinance Cash Out Calculator helps you estimate how much you may be able to borrow based on your home’s current value, existing mortgage balance, maximum loan-to-value ratio, new interest rate, and loan term.
The calculator provides five useful estimates:
- Maximum new loan amount
- Cash available to take out
- New monthly principal and interest payment
- Current home equity
- Remaining equity after the refinance
A cash-out refinance can be useful for certain financial goals, but it also increases the amount of debt secured by your home. The Consumer Financial Protection Bureau (CFPB) notes that using home equity to pay other debts can make financial sense in some circumstances, but converting non-mortgage debt into mortgage debt can also increase the risk of losing your home if payments become unaffordable.
This calculator is therefore best used for initial planning and comparison, not as a guarantee of what a lender will approve.
What Is a Cash-Out Refinance?
A cash-out refinance is a type of mortgage refinance in which you replace your current mortgage with a new, larger mortgage and receive some of the available equity as cash.
For example, suppose your home is worth $400,000 and you owe $200,000 on your existing mortgage. If a lender allows a new loan up to 80% of the home’s value, the maximum new mortgage would be:
$400,000 × 80% = $320,000
After paying off the existing $200,000 mortgage, the theoretical difference would be:
$320,000 − $200,000 = $120,000
The actual amount available to you can be lower after considering closing costs, lender requirements, existing liens, and other transaction expenses.
The CFPB describes cash-out refinancing as replacing an existing mortgage with a larger mortgage and using the difference in cash.
What Does This Mortgage Refinance Cash Out Calculator Calculate?
The tool uses five inputs to estimate your refinancing scenario.
1. Current Home Value
Enter the estimated current market value of your property.
For example:
$400,000
This value is important because the maximum potential loan is calculated as a percentage of the home’s value.
Keep in mind that your estimate may differ from the lender’s valuation or appraisal.
2. Current Mortgage Balance
Enter the remaining principal balance on your current mortgage.
For example:
$200,000
The calculator subtracts this balance from the maximum new loan amount to estimate the cash potentially available.
3. Maximum LTV Ratio
Enter the maximum loan-to-value (LTV) ratio you want to use.
The calculator defaults to:
80%
LTV compares the mortgage amount with the property’s value.
The basic formula is:
LTV = Loan Amount ÷ Home Value × 100
For example, an $320,000 mortgage on a $400,000 property has an 80% LTV.
Your actual maximum LTV can depend on the lender, loan program, property type, occupancy, credit profile, debt-to-income ratio, and other underwriting factors. Therefore, the percentage entered into this calculator is an assumption for estimation rather than a promise of eligibility.
4. New Interest Rate
Enter the interest rate you are considering for the new mortgage.
For example:
6.50%
The calculator converts the annual percentage rate into a monthly rate to estimate the principal-and-interest payment.
Your actual mortgage rate can vary based on factors such as creditworthiness, loan type, market conditions, property characteristics, and lender pricing.
5. New Loan Term
Enter the length of the new mortgage in years.
The calculator defaults to:
30 years
You can enter another term within the tool’s available range.
A longer loan term generally produces a lower required monthly principal-and-interest payment for the same loan amount and rate, but it can result in more interest paid over the life of the loan.
The CFPB notes that a lower monthly payment can sometimes result from extending the loan term, so comparing only monthly payments can give an incomplete picture.
How to Use the Mortgage Refinance Cash Out Calculator
Using the calculator is straightforward.
Step 1: Enter Your Home Value
Enter your estimated current property value.
Example:
$400,000
Step 2: Enter Your Existing Mortgage
Enter the current outstanding mortgage balance.
Example:
$200,000
Step 3: Choose a Maximum LTV
Enter the maximum LTV percentage you want to evaluate.
Example:
80%
Step 4: Enter the New Rate
Enter the interest rate you want to analyze.
Example:
6.50%
Step 5: Enter the New Loan Term
Enter the proposed loan term.
Example:
30 years
Step 6: Click Calculate
Select Calculate to display the estimated results.
If you want to test another scenario, select Reset and enter the new assumptions.
Mortgage Refinance Cash Out Example
Let’s walk through a hypothetical scenario.
Suppose a homeowner has:
- Home value: $400,000
- Current mortgage: $200,000
- Maximum LTV: 80%
- New interest rate: 6.50%
- New term: 30 years
Maximum New Loan
The calculator first determines the maximum mortgage based on the LTV:
$400,000 × 80% = $320,000
So the estimated maximum new loan is:
$320,000
Cash Available
The calculator then subtracts the existing mortgage:
$320,000 − $200,000 = $120,000
The estimated cash-out amount is therefore:
$120,000
Current Equity
Current equity is calculated as:
Home Value − Current Mortgage
So:
$400,000 − $200,000 = $200,000
The homeowner currently has an estimated $200,000 in equity.
Remaining Equity
After borrowing $320,000 against a $400,000 property, the equity represented by the difference is:
$400,000 − $320,000 = $80,000
So the calculator estimates $80,000 of remaining equity after the refinance.
Estimated New Payment
The calculator then estimates the principal-and-interest payment using the $320,000 new loan, 6.50% interest rate, and 30-year term.
The resulting payment is approximately $2,023 per month for principal and interest.
This figure does not represent the complete monthly housing payment. Property taxes, homeowners insurance, mortgage insurance where applicable, HOA charges, and other expenses may increase the amount you actually pay each month. The CFPB notes that a mortgage’s total monthly payment can include costs beyond principal and interest.
How the Cash-Out Formula Works
The calculator uses a simple set of calculations.
Maximum New Loan Formula
Maximum New Loan = Home Value × Maximum LTV
If the property is worth $500,000 and the selected LTV is 80%:
$500,000 × 0.80 = $400,000
Cash-Out Formula
The calculator estimates cash available as:
Cash Out = Maximum New Loan − Current Mortgage Balance
If the maximum new loan is $400,000 and the current mortgage is $250,000:
$400,000 − $250,000 = $150,000
Current Equity Formula
Current Equity = Home Value − Current Mortgage
For a $500,000 property with a $250,000 mortgage:
$500,000 − $250,000 = $250,000
Remaining Equity Formula
The calculator estimates:
Remaining Equity = Home Value − Maximum New Loan
At an 80% LTV on a $500,000 property:
$500,000 − $400,000 = $100,000
These calculations provide a useful starting point for understanding the relationship between property value, mortgage debt, LTV, and equity.
Understanding Loan-to-Value Ratio
Loan-to-value ratio, or LTV, is one of the most important concepts in mortgage refinancing.
It measures how large the mortgage is compared with the property’s value.
For example:
| Home Value | Loan Amount | LTV |
|---|---|---|
| $300,000 | $150,000 | 50% |
| $300,000 | $210,000 | 70% |
| $300,000 | $240,000 | 80% |
| $300,000 | $270,000 | 90% |
A lower LTV generally means more equity remains in the property.
The calculator lets you model different LTV assumptions, but the maximum amount a lender will permit can differ from the percentage you enter.
Why Home Equity Matters
Home equity is the portion of your home’s value that is not covered by mortgage debt.
The basic calculation is:
Home Equity = Home Value − Mortgage Debt
If your home is worth $450,000 and you owe $275,000:
$450,000 − $275,000 = $175,000
Your equity can increase if:
- Your mortgage balance decreases
- Your property value increases
- You make additional principal payments
It can decrease if:
- Your mortgage balance increases
- Property values decline
- You borrow against the equity
A cash-out refinance intentionally converts some of that equity into additional mortgage debt.
What Can Cash-Out Refinance Money Be Used For?
Homeowners may use cash-out refinancing for various purposes, including:
- Home improvements
- Major repairs
- Debt consolidation
- Education expenses
- Large planned purchases
- Other financial needs
The CFPB’s 2025 research found that cash-out refinance borrowers commonly used extracted funds to pay down non-mortgage debts, including credit card and auto debt.
However, using mortgage debt to pay off other debts changes the nature of the financial risk. Credit card debt may be unsecured, whereas the mortgage is secured by your home.
That means failing to repay the mortgage can ultimately put the property at risk.
Cash-Out Refinance vs. Home Equity Loan
A cash-out refinance is not the only way to access home equity.
A home equity loan allows you to borrow against your home’s equity while generally keeping the existing first mortgage in place.
A cash-out refinance, by contrast, replaces your current mortgage with a new mortgage.
This distinction can be particularly important when your existing mortgage has a favorable interest rate.
For example, if your current mortgage has a much lower rate than today’s refinancing option, replacing the entire mortgage could increase borrowing costs even if you only need a relatively small amount of cash.
The CFPB has noted that home equity loans and HELOCs can sometimes be alternatives to a cash-out refinance, particularly when replacing a low-rate first mortgage with a higher-rate new mortgage would be costly.
Cash-Out Refinance vs. HELOC
A HELOC, or home equity line of credit, is another way to borrow against home equity.
Unlike a cash-out refinance, a HELOC generally does not replace your existing first mortgage.
A HELOC can provide a revolving credit line, potentially allowing you to borrow only what you need.
A cash-out refinance instead creates a new mortgage balance and provides the borrowed cash as part of the refinancing transaction.
Which option is better depends on the borrower’s existing mortgage rate, desired amount, repayment plans, credit profile, costs, and financial goals.
Important Costs the Calculator Does Not Include
One of the most important limitations of this calculator is that it does not include all refinancing costs.
A real refinance may involve:
- Origination charges
- Appraisal fees
- Title services
- Recording fees
- Discount points
- Other lender fees
- Prepaid interest
- Escrow-related costs
- Other closing expenses
The CFPB explains that mortgages can involve both upfront costs and costs incorporated into the loan or paid over time.
Consequently, the calculator’s cash-out estimate should not be interpreted as the exact amount of money you will receive at closing.
For example, if the calculator estimates $100,000 of available cash but you have $7,000 of eligible costs financed or deducted from the transaction, your actual proceeds could be significantly lower.
Why the New Monthly Payment May Be Different
The calculator estimates the new principal-and-interest payment based on:
- New loan amount
- Interest rate
- Loan term
It does not include property taxes, homeowners insurance, HOA fees, or other possible housing expenses.
A new mortgage can also change the length of time you will be making payments.
For example, someone who has 20 years remaining on an existing mortgage and refinances into a new 30-year mortgage could reduce the required monthly principal-and-interest payment while extending the repayment period.
The CFPB recommends looking beyond the monthly payment and considering the overall cost and loan terms when comparing mortgage options.
Benefits of a Cash-Out Refinance
A cash-out refinance may offer several potential advantages.
Access to a Large Amount of Cash
Homeowners with substantial equity may be able to access a significant amount of money without selling their property.
Potentially Lower-Cost Borrowing
Mortgage borrowing may have a lower interest rate than certain forms of unsecured consumer debt, although the total cost must be evaluated.
One Mortgage Payment
A cash-out refinance can consolidate the existing mortgage and the new borrowing into one mortgage.
Home Improvement Financing
Borrowing against equity may provide funds for renovations or major repairs that potentially improve the property.
However, these potential benefits should be weighed against closing costs, interest charges, repayment obligations, and the fact that the home secures the mortgage.
Risks of Cash-Out Refinancing
Cash-out refinancing also has meaningful risks.
Your Mortgage Balance Increases
You are borrowing more against the property.
Your Equity Decreases
Taking cash out reduces the amount of equity remaining in the home.
Your Monthly Payment May Increase
A larger loan can result in a higher principal-and-interest payment, particularly if the new rate is higher.
You May Pay More Interest
Extending the loan term or borrowing additional money can increase total interest costs.
Your Home Secures the Debt
This is perhaps the most important consideration.
The CFPB warns that converting other debts into mortgage debt can put the home at risk of foreclosure if the new mortgage payments become unsustainable.
Cash-Out Refinance and Closing Costs
A refinance generally comes with transaction costs.
Some borrowers may choose to pay these costs upfront, while others may have them incorporated into the new loan.
A so-called “no-closing-cost” refinance does not necessarily mean the costs disappear. The CFPB explains that lenders may compensate for these costs through a higher interest rate or by adding the costs to the loan amount.
This is why comparing only the advertised monthly payment or interest rate can be misleading.
When evaluating an actual loan offer, examine the Loan Estimate, closing costs, loan amount, interest rate, and total borrowing cost.
The CFPB recommends comparing upfront loan costs, lender credits, cash to close, and the five-year cost of borrowing when evaluating mortgage offers.
How to Decide How Much Cash to Take Out
Just because you can access a particular amount of equity does not mean you should borrow the maximum.
Consider:
- How much money do you actually need?
- What will the money be used for?
- What is your current mortgage rate?
- What is the proposed new rate?
- How much will closing costs be?
- How much will your monthly payment change?
- How much equity will remain?
- How long do you expect to keep the property?
- Could you comfortably make the new payment if expenses increase?
Borrowing less than the maximum may leave more equity in your home and reduce the amount of interest you pay.
When a Cash-Out Refinance May Not Make Sense
A cash-out refinance may not be attractive when the new interest rate is substantially higher than your current mortgage rate.
It may also be less suitable if you only need a relatively small amount of money but would have to refinance a large existing mortgage.
Another consideration is the purpose of the money. Using home equity for an investment or expense that does not generate sufficient value to justify the borrowing cost can create unnecessary financial risk.
The CFPB has highlighted the risk of replacing a low-rate mortgage with a higher-rate cash-out refinance and recommends closely evaluating alternatives.
Frequently Asked Questions
1. What is a mortgage refinance cash-out calculator?
A mortgage refinance cash-out calculator estimates the potential new mortgage amount, cash available from refinancing, monthly principal-and-interest payment, current equity, and remaining equity based on the information entered.
2. How is cash-out refinance calculated?
The calculator first estimates the maximum new loan by multiplying the home’s value by the selected maximum LTV. It then subtracts the current mortgage balance to estimate potential cash available.
3. What is the maximum loan amount?
The maximum loan amount in this calculator is calculated as:
Home Value × Maximum LTV Percentage
For example, a $400,000 home at 80% LTV produces a theoretical maximum loan of $320,000.
4. How much cash can I take out of my home?
The calculator estimates potential cash as the maximum new loan minus the current mortgage balance. Actual proceeds can be lower after closing costs, liens, lender requirements, and other adjustments.
5. What is LTV?
LTV means loan-to-value ratio. It compares the mortgage amount with the property’s value and is commonly expressed as a percentage.
6. What happens to my equity after a cash-out refinance?
Your equity generally decreases when you increase the mortgage balance. The calculator estimates remaining equity by subtracting the maximum new loan amount from the home’s value.
7. Does this calculator include closing costs?
No. The calculator does not subtract refinancing closing costs, lender fees, points, prepaid expenses, or other transaction costs from the cash-out estimate.
8. Does the new monthly payment include property taxes and insurance?
No. The calculator estimates principal and interest only. Your actual mortgage payment may also include property taxes, homeowners insurance, mortgage insurance, and other expenses.
9. Can I use a cash-out refinance to pay off credit cards?
Some homeowners use cash-out refinance proceeds to pay other debts, including credit card debt. However, doing so converts potentially unsecured debt into debt secured by the home, which can increase the consequences of missed mortgage payments.
10. Is an 80% LTV always allowed?
No. The 80% figure is simply the calculator’s default assumption. Actual lender limits vary according to loan type, property, borrower qualifications, credit profile, debt-to-income ratio, occupancy, and other requirements.
11. Does refinancing always lower my monthly payment?
No. A refinance can lower, increase, or leave your payment relatively similar depending on the new loan amount, interest rate, term, and other costs.
12. Can I refinance if I have little equity?
Potentially, depending on the loan program and lender requirements, but a cash-out refinance specifically depends on having sufficient equity and qualifying for the new mortgage.
13. Is a cash-out refinance better than a HELOC?
Not necessarily. The better choice depends on your current mortgage rate, the amount you need, repayment terms, fees, interest rates, and financial circumstances. A HELOC can allow you to access equity without replacing the existing first mortgage.
14. Does the calculator guarantee how much a lender will give me?
No. It is an estimate based on the values entered. A lender will evaluate additional factors, including income, credit history, debt obligations, property value, loan type, and underwriting requirements.
15. Should I refinance based only on the calculator’s results?
No. Use the calculator as a planning tool and compare actual loan offers carefully. Consider the interest rate, closing costs, new loan balance, monthly payment, total interest, repayment term, and amount of equity you will retain. The CFPB recommends comparing loan estimates and the overall cost of borrowing rather than focusing solely on the monthly payment.
Final Thoughts
A Mortgage Refinance Cash Out Calculator can make it easier to understand how home value, mortgage balance, LTV, interest rate, and loan term interact. By entering a few assumptions, you can quickly estimate the maximum theoretical refinance amount, potential cash-out amount, new principal-and-interest payment, and equity remaining in the property.
The most important takeaway is that maximum cash available is not necessarily the same as the amount you should borrow. A cash-out refinance increases the mortgage secured by your home, and transaction costs can reduce the amount of cash you actually receive. A higher interest rate or longer repayment term can also increase the long-term cost of borrowing.
Before proceeding with an actual refinance, compare multiple loan offers and review the complete costs and terms. Consider whether keeping your existing mortgage and using a home equity loan or HELOC could be more appropriate for your situation. Most importantly, make sure the resulting payment fits comfortably within your long-term budget.
Disclaimer: This calculator provides estimates for educational and planning purposes. Actual refinance eligibility, maximum LTV, interest rate, closing costs, loan amount, cash proceeds, and monthly payment depend on the lender, loan program, property, and borrower’s financial circumstances. It should not be considered a loan offer or financial advice.