“Refinance” can mean two different questions. The first is about your home’s equity: how much cash can a larger replacement mortgage pay out? The second is about the loans themselves: does replacing your current loan with a new one lower your payment enough to justify the costs? Both are refinance math, but they start from different inputs and answer different questions. The cash-out refinance calculator is built around loan-to-value limits, while the refinance calculator is a side-by-side comparison of the old and new loans.
What each calculator does
The cash-out refinance calculator starts with home value, current mortgage balance, and the lender’s assumed loan-to-value limit (80% by default). It multiplies value by LTV to find the maximum new loan, subtracts the balance and any financed closing costs to estimate maximum net cash, and checks whether your desired cash-out amount fits under the cap by computing a requested loan-to-value. It also estimates the principal-and-interest payment on the requested new loan — property taxes, insurance, mortgage insurance, HOA dues, and utilities are not included.
The refinance calculator compares the loan you have with the loan you are considering. It reconstructs your current payment from balance, APR, and months remaining, then builds a replacement principal from the balance, any cash in or out, and financed refinance costs. It reports the new payment, monthly savings, interest left on the current loan, interest on the new loan, and a break-even estimate that divides costs by monthly savings. Its math treats both loans as fixed-rate installment loans, so it can also screen auto, personal, or student loan refinancing.
Side-by-side
| Cash-out refinance calculator | Refinance calculator | |
|---|---|---|
| Starting point | Home value and current mortgage balance | Current loan balance, APR, and months remaining |
| Key constraint | Loan-to-value limit (80% default) | Costs versus monthly savings |
| Primary question | How much cash can I take out? | Does the new loan beat the old loan? |
| Outputs | Max new loan, max net cash, requested LTV, equity left, new payment | New payment, monthly savings, break-even months, total payment difference |
| Closing costs | Treated as financed, reducing cash available | Can be financed or paid in cash |
| Cash in or out | Desired cash out is an input | Cash out (adds debt) or cash in (reduces principal) |
| Taxes and insurance | Excluded from the payment shown | Up to you to add separately |
| Works for non-mortgage loans | No — built around home equity and LTV | Yes — any fixed-rate installment loan |
When to use which
Use the cash-out refinance calculator when your question is about equity: how much of your home’s value you can turn into cash while staying under a loan-to-value ceiling. It is the right tool for checking whether a desired cash amount fits, how much closing costs eat into it, and what the new principal-and-interest payment looks like. If your real question is whether borrowing against your home is the right structure at all, its own guidance points to comparing a HELOC payment calculator, since a cash-out refinance replaces the whole first mortgage while a HELOC leaves it in place.
Use the refinance calculator when you already have a specific replacement offer in mind and want to compare payments, total interest, and payback timing. The monthly savings number is only part of the story — the break-even estimate divides costs by savings, so it is a quick screen rather than a full analysis of credit effects, tax treatment, or prepayment penalties. If you are refinancing a mortgage and the only question is how long it takes to recover costs, the refinance break-even calculator isolates that calculation.
The two tools are complementary for homeowners: run the refinance calculator to see whether a new loan is worth it, then run the cash-out calculator to see how much equity a larger loan could release. A word of caution from both pages: extending the term can lower the monthly payment while increasing total interest, and cash taken out is borrowing, not savings.
Limits and disclaimer
Both pages are educational estimates, not loan approvals, rate quotes, or lender disclosures. The cash-out calculator assumes your LTV input and does not verify appraisal, income, credit, or program rules; the payment it shows excludes taxes, insurance, and other housing costs. The refinance calculator assumes fixed payments, constant rates, and no prepayment penalty, and its break-even screen does not capture credit-score effects, tax treatment, escrow changes, or adjustable-rate risk. Real refinances come with standardized disclosures — compare actual Loan Estimates and Closing Disclosures line by line before deciding.