Loan to Value Calculator
Loan-to-value ratio (LTV) determines whether you need mortgage insurance and affects your interest rate. Enter your home value and loan amount to calculate your LTV and equity position.
How LTV Impacts Your Mortgage
Lenders price loans based on risk, and LTV is their primary risk metric. An 80% LTV loan means you have 20% equity—skin in the game that makes you less likely to walk away if the market crashes. A 95% LTV loan means you have just 5% equity, so a small price drop puts you underwater.
This risk difference translates directly to rate pricing. A borrower with 75% LTV might get 6.0%, while 90% LTV on the same profile gets 6.5%. That half-point spread costs $100+ monthly on a $300,000 loan, or $36,000 over 30 years.
At 80.01% LTV, you pay private mortgage insurance. Drop to 79.99% and PMI disappears. That razor-thin threshold can cost or save you $150 to $300 monthly—enough to make or break affordability for some buyers.
LTV for Refinancing and Home Equity Loans
When refinancing, lenders calculate LTV using the current appraised value, not your original purchase price. If you bought for $300,000 and the home is now worth $400,000, your $240,000 remaining balance is 60% LTV, not 80%. This matters enormously for rate and PMI.
Home equity loans and HELOCs use combined loan-to-value (CLTV), which includes all liens on the property. If you have a $300,000 first mortgage and take a $50,000 HELOC on a $400,000 home, your CLTV is 87.5% even though your first mortgage LTV is just 75%. Most lenders cap CLTV at 85% to 90%.
Cash-out refinances also consider LTV. Lenders typically limit cash-out refis to 80% LTV, meaning you can only pull cash if you have more than 20% equity. Underwater borrowers or those with minimal equity won't qualify.
Strategies to Improve Your LTV
The fastest way to improve LTV is a larger down payment. Every extra dollar down reduces the numerator (loan amount) without changing the denominator (home value). Dropping from 90% LTV to 80% by adding $30,000 to your down payment eliminates PMI and may lower your rate.
For existing homeowners, extra principal payments reduce LTV over time. Make an extra $500 monthly payment on a $300,000 loan and you'll hit 80% LTV years earlier than the scheduled amortization. This lets you request PMI cancellation and potentially refinance to a better rate.
Appreciation helps passively. In hot markets, home values rise 5% to 10% annually, cutting LTV without any action on your part. A $400,000 home appreciating 7% annually hits $500,000 in five years. If your loan balance dropped from $320,000 to $280,000 in that time, your LTV falls from 80% to 56%—a massive improvement that unlocks refinancing and equity borrowing options.
Frequently Asked Questions
What is loan-to-value ratio?
LTV is the percentage of the home's value that you're borrowing. Divide the loan amount by the home value and multiply by 100. An $300,000 loan on a $400,000 home is 75% LTV.
Why does LTV matter?
Lenders use LTV to assess risk. Higher LTV means less equity cushion if you default. LTV above 80% typically requires PMI. Lower LTV often qualifies for better interest rates.
How do I lower my LTV?
Make a larger down payment, pay down your mortgage balance, or wait for home appreciation. Refinancing an appreciated home at the same loan balance also lowers LTV.
What LTV do I need to avoid PMI?
80% or lower on most conventional loans. FHA loans require mortgage insurance regardless of LTV. VA and USDA loans don't have PMI but charge funding or guarantee fees.
Can my LTV go down over time?
Yes. Monthly principal payments reduce your loan balance, and appreciation increases your home value. Both improve your LTV. After several years, you may hit 80% LTV and can request PMI removal.