LTV Calculator — Loan-to-Value Ratio

What Is Loan-to-Value Ratio?

Loan-to-value ratio (LTV) is a financial metric that compares the amount of your mortgage to the appraised value of the property. It is calculated by dividing the loan amount by the property value and expressing the result as a percentage. For example, if you borrow $340,000 on a home valued at $400,000, your LTV is 85%. LTV is one of the most important numbers in mortgage lending because it directly impacts your interest rate, mortgage insurance requirements, and loan eligibility. A lower LTV represents less risk for the lender because the borrower has more equity, meaning more skin in the game. According to the Consumer Financial Protection Bureau (CFPB), LTV affects every stage of homeownership, from purchase qualification to refinancing eligibility. Lenders view borrowers with lower LTV ratios as less likely to default, since walking away from a home means forfeiting a larger equity stake. This is why a 20% down payment (80% LTV) has historically been the gold standard for conventional mortgages.

LTV Thresholds That Matter

Several LTV thresholds trigger significant changes in mortgage terms and requirements. The most important is 80%, the point at which private mortgage insurance (PMI) is no longer required on conventional loans. If your LTV exceeds 80%, lenders require PMI to protect against default risk, typically costing 0.3% to 1.5% of the loan amount annually. At 78% LTV, your servicer is legally required to automatically cancel PMI under the Homeowners Protection Act, even if you have not requested it. Conventional loans allow a maximum LTV of 97% (3% down payment) for first-time buyers through Fannie Mae's HomeReady and Freddie Mac's Home Possible programs. FHA loans permit up to 96.5% LTV (3.5% down payment) for borrowers with credit scores of 580 or higher. VA loans offer 100% LTV (no down payment) for eligible veterans. For refinancing, most conventional lenders require 80% LTV or less for a standard rate-and-term refinance, though some programs accept higher ratios. HELOC lenders typically cap combined LTV at 85% to 90%, meaning your total mortgage debt cannot exceed that percentage of your home value.

LTV and Refinancing Options

Your current LTV ratio determines which refinancing options are available to you and at what terms. A rate-and-term refinance, where you replace your existing mortgage with a new one at a different rate or term, generally requires an LTV at or below 80% for the best rates and no PMI. Borrowers with LTV between 80% and 97% can still refinance conventionally but will need to pay PMI on the new loan. Cash-out refinancing, where you borrow more than your current balance and receive the difference in cash, typically caps at 80% LTV for conventional loans, meaning you must maintain at least 20% equity after the refinance. FHA streamline refinances require an existing FHA loan but do not require a new appraisal, effectively bypassing LTV restrictions. VA interest rate reduction refinance loans (IRRRL) similarly do not impose strict LTV limits. According to Freddie Mac's research, borrowers who refinance at LTV below 75% consistently receive the most favorable interest rates, often 0.125% to 0.25% better than those at 80% LTV. Monitoring your LTV as your home appreciates helps you identify the optimal time to refinance.

Combined LTV (CLTV) Explained

Combined loan-to-value ratio (CLTV) measures the total of all loans secured by a property relative to its value. While standard LTV only considers the first mortgage, CLTV includes second mortgages, home equity loans, HELOCs, and any other liens against the property. If you have a $300,000 first mortgage and a $50,000 HELOC on a $400,000 home, your LTV is 75% but your CLTV is 87.5%. CLTV matters because lenders consider it when you apply for additional financing against your home. Most HELOC lenders cap CLTV at 85% to 90%, and home equity loan providers use similar thresholds. The Federal Reserve's Survey of Household Economics shows that homes with CLTV above 90% have substantially higher default rates, which is why lenders impose these limits. When calculating your borrowing capacity for a second lien, start with your home value, subtract your first mortgage balance, and multiply the remainder by 0.85 to estimate your maximum additional borrowing. Understanding CLTV prevents over-leveraging your home and helps you maintain a healthy equity buffer.

How to Improve Your LTV Ratio

Improving your LTV ratio accelerates PMI removal, unlocks better refinancing terms, and increases your equity-based borrowing capacity. The most direct method is making extra mortgage payments, which reduces your loan balance and lowers LTV. Even adding $100 per month to a $340,000 loan at 6.875% drops your balance roughly $1,400 faster in the first year than minimum payments alone. Home improvements that increase appraised value also improve LTV without reducing your balance. Kitchen and bathroom renovations, according to NAR's Remodeling Impact Report, typically recover 60% to 80% of their cost in increased home value. Market appreciation naturally improves LTV over time as home values rise. If you believe your home has appreciated significantly since purchase, you can request a new appraisal from your lender to establish a higher property value, which reduces your LTV even without paying down the balance. A one-time lump-sum payment, such as applying a tax refund or bonus toward principal, can push you past a key threshold like 80% LTV. Use our calculator above to model different scenarios and find the fastest path to your target LTV.