Loan-to-Value Calculator for Property Equity Planning
Calculate a property loan-to-value ratio and estimated equity from the current property value and outstanding loan balance for a clearer mortgage view.
Enter current property value and outstanding loan balance to calculate loan-to-value ratio and estimated equity.
About loan-to-value ratios
A loan-to-value calculator measures how much of a property's current value is financed. Lenders use LTV when they underwrite a purchase mortgage, cash-out refinance, or home-equity line. Insurers and investors watch it because a high LTV leaves less cushion if prices fall. Owners use the same ratio to see how much equity they have before remodeling, selling, or dropping mortgage insurance. The loan-to-value calculator divides outstanding loan amount by property value and multiplies by 100. Estimated equity is property value minus the loan. If a home is worth $400,000 and the mortgage balance is $300,000, LTV is 75% and equity is $100,000. Combined LTV across a first mortgage and a second lien is a related idea; this estimate uses a single loan amount, so add balances if you need a combined picture. Conventional purchase loans often target 80% LTV or lower to avoid private mortgage insurance. Many refinance programs set maximum LTVs, and cash-out refinances are usually tighter than rate-and-term deals. Government-backed loans can allow higher ratios at origination, then LTV falls as you amortize and if the property appreciates. A declining market can push LTV back up even if you never borrow more. Property value here is an input, not an appraisal. A Zestimate, tax assessment, or last sale price can differ from the value a lender's appraiser assigns. Loan amount should be the unpaid principal you care about, not the original note amount, and it excludes accrued interest, escrow, and closing costs unless you choose to include them. The calculator does not model PMI premiums, piggyback seconds, or shared-equity arrangements. Use the LTV calculator to test a purchase with 20% down, a refinance after several years of paydown, or a high-LTV case near 80%. Compare the ratio against lender overlays and insurance rules, then confirm value with a comparable-sales review or appraisal before you apply. Treat equity as a snapshot: selling costs, capital-gains tax, and prepayment penalties can reduce cash you would actually take out.
LTV = loan amount ÷ property value × 100; equity = property value − loan amount.
Loan-to-value calculation examples
These worked examples use the same LTV and equity formulas as the loan-to-value calculator.
| Input | Output | Note |
|---|---|---|
| $400,000 property; $300,000 loan | 75.00% | A 75% LTV leaves $100,000 of estimated equity, a common conventional-mortgage comparison after a 25% down payment or several years of paydown. |
| $500,000 property; $100,000 loan | 20.00% | LTV of 20% implies $400,000 of equity, the kind of cushion that can support a refinance or a large home-equity discussion. |
| $250,000 property; $200,000 loan | 80.00% | An 80% LTV is a frequent PMI cutoff on conventional loans, with $50,000 of equity on this $250,000 property. |
How to calculate loan-to-value
- Enter the current Property Value you want to use, such as a recent appraisal or listing estimate.
- Enter the outstanding Loan Amount for the mortgage or the combined balances if you are modeling one total lien.
- Select Calculate to display the loan-to-value ratio and estimated equity.
- Compare the LTV with lender or insurance thresholds, then adjust value or loan amount to test another scenario.
Loan-to-value calculator FAQ
How is loan-to-value calculated?
LTV equals outstanding loan amount divided by property value, then multiplied by 100. Estimated equity is the other side of the same relationship: property value minus the loan balance.
What LTV do mortgage lenders usually want?
Many conventional purchase loans aim for 80% LTV or lower so private mortgage insurance is not required. Refinance, cash-out, and government-backed programs use different caps, so compare the ratio against the product you are considering rather than a single rule of thumb.
Should I include a second mortgage in the loan amount?
If you need combined loan-to-value, add the first-lien balance and any second mortgage or HELOC drawn amount, then enter that total as Loan Amount. The loan-to-value calculator uses one loan field, so it will not split first and second liens on its own.
Is property value the same as an appraisal?
No. You can type any value assumption, but a lender will usually rely on an appraisal or automated valuation, not a tax assessment or online estimate. If the appraised value comes in lower, LTV rises and equity falls even though the loan balance did not change.
Does a lower LTV always mean I can drop PMI?
Not automatically. PMI cancellation often requires a lower LTV plus seasoning, occupancy, and payment-history rules, and some policies need an appraisal. Use the ratio as a screening number, then confirm the servicer's cancellation or automatic-termination terms.