Loan-to-Value (LTV)
LTV ratio and home equity from loan amount and property value.
Loan-to-value ratio
80.0%
No PMI typically required
Equity
$80,000.00
Loan
$320,000.00
Value
$400,000.00
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How the Loan-to-Value (LTV) works
The Loan-to-Value (LTV) calculator instantly computes your LTV ratio and home equity by comparing your outstanding loan amount to your property's current value — an essential tool for homebuyers, homeowners refinancing, and anyone trying to eliminate private mortgage insurance (PMI).
The LTV ratio is calculated by dividing your current loan balance by the appraised or market value of your property, then multiplying by 100 to express it as a percentage. For example, if you owe $180,000 on a home worth $250,000, your LTV is 72%. Your home equity — the portion of the property you truly 'own' — is simply the inverse: the difference between the property value and the loan balance, in this case $70,000 or 28% of the home's value. These two figures move in opposite directions; as you pay down your mortgage or as your home appreciates, your LTV falls and your equity grows.
LTV is one of the most influential numbers in mortgage lending. Lenders use it to gauge risk: the higher your LTV, the less equity cushion the lender has if you default and the home must be sold. Most conventional lenders in the US require an LTV at or below 80% to avoid PMI, which is an additional monthly insurance premium that protects the lender — not you — against default. Government-backed loans like FHA mortgages allow LTVs up to 96.5%, but they carry their own form of mortgage insurance. Jumbo loans and cash-out refinances often have stricter LTV caps, sometimes requiring 70–75% or lower.
Home equity built over time opens powerful financial doors. Once your LTV drops to 80% — either through principal payments, home appreciation, or a combination of both — you have the right under the Homeowners Protection Act (US) to request PMI cancellation, which can save hundreds of dollars per year. Equity also serves as collateral for home equity loans and HELOCs, typically available up to a combined LTV (CLTV) of 85–90%. Monitoring your LTV regularly, especially in a rising real estate market, can reveal PMI-removal opportunities or favorable refinancing windows you might otherwise miss.
A common mistake borrowers make is using the original purchase price rather than the current appraised value when calculating LTV, which can produce an inaccurately high ratio and delay financial decisions. If your home has appreciated significantly, a professional appraisal — or a lender-ordered one during refinancing — may reveal that your LTV is already below 80%, making you eligible for PMI removal without any extra payments. Conversely, in a declining market, LTV can rise above 100% (negative equity or being 'underwater'), which severely limits refinancing options and is a critical risk to monitor. Always use the most current and realistic property value estimate available for meaningful results.
Formula
LTV = Loan amount / Property value × 100
Pro tips
- Request PMI cancellation proactively once your LTV reaches 80% — lenders are not required to notify you automatically, so track your balance and home value yourself and submit a written request.
- In a rising real estate market, order a professional appraisal before refinancing or requesting PMI removal; a higher appraised value could drop your LTV below the 80% threshold even if you haven't made extra payments.
- When making extra mortgage payments, apply them directly to principal to accelerate LTV reduction — even one or two additional principal payments per year can meaningfully shorten the time to reach the 80% LTV milestone.
- If you're buying a home and your down payment results in an LTV above 80%, compare the total cost of PMI over time against the cost of a slightly higher down payment — in many cases, saving an extra 1–2% to cross the 80% LTV threshold at purchase saves money long-term.
- For a cash-out refinance or HELOC, calculate your CLTV (all loans divided by property value) in addition to your first-mortgage LTV, since most lenders cap CLTV at 85–90% regardless of how low your primary mortgage LTV is.
Key terms
- Loan-to-Value Ratio (LTV)
- — The percentage of a property's value that is financed by debt, calculated by dividing the outstanding loan balance by the property's current appraised value.
- Home Equity
- — The portion of the property's value that the homeowner actually owns, equal to the property's market value minus any outstanding mortgage or loan balances.
- Private Mortgage Insurance (PMI)
- — A monthly insurance premium required by conventional lenders when a borrower's LTV exceeds 80%, protecting the lender — not the borrower — in case of default.
- Combined Loan-to-Value (CLTV)
- — A broader LTV calculation that includes all liens on a property (e.g., first mortgage plus a home equity loan), used by lenders to assess total borrowing risk.
- Appraised Value
- — A licensed appraiser's professional estimate of a property's current market value, which lenders use as the denominator in LTV calculations rather than the purchase price or tax assessment.
- Negative Equity
- — A situation where the outstanding loan balance exceeds the property's market value, resulting in an LTV above 100%, commonly called being 'underwater' on the mortgage.
