Loan-to-Value Ratio: Definition and Calculator

This loan-to-value (LTV) calculator divides a loan amount by a property’s value and expresses the result as a percentage. Enter the loan and property value to see the LTV, along with the amount of property value not covered by the loan.

Formula

The loan-to-value ratio is the loan amount divided by the property value, multiplied by 100:

LTV (%) = (L ÷ V) × 100

• L = loan amount, in dollars ($).
• V = property value used for the calculation, in dollars ($).

The second result, value minus loan amount, is a simple dollar difference between the entered value and debt. It is not necessarily the borrower’s full equity: other liens, transaction costs, or changes in value are not included. The property value must be greater than zero for the ratio to be meaningful.

Worked Example

Using the calculator’s default inputs—loan amount $200,000 and property value $250,000:

1. Divide the loan by the property value: $200,000 ÷ $250,000 = 0.8.
2. Multiply by 100: 0.8 × 100 = 80.00% LTV.
3. Subtract the loan from the value: $250,000 − $200,000 = $50,000.

The result means the loan equals 80% of the entered property value. The $50,000 difference is 20% of that value, before considering other debts or costs.

What LTV Means in Real Estate

LTV is a way to describe how large a property-backed loan is relative to the value used in the calculation. It is commonly discussed in mortgage lending and property finance. A lower ratio means the loan is a smaller share of the stated property value; a higher ratio means it is a larger share.

For example, a $300,000 loan against a property valued at $400,000 has an LTV of 75%. The calculation does not show the borrower’s income, credit history, monthly payment, interest rate, or ability to repay. It is one measure of the relationship between debt and collateral, not a complete assessment of a loan or borrower.

An LTV of 100% means the loan amount equals the entered property value. A result above 100% means the loan exceeds that value. That arithmetic does not, by itself, establish whether a loan is available or what terms apply.

Which Property Value Is Used?

The answer depends on the purpose of the calculation and the figures used by the parties involved. A home’s purchase price and its appraised or otherwise assessed value may differ. For a purchase, a lender may specify which valuation figure it uses; for a later loan or refinance, a current valuation may be relevant. The calculator simply uses the value you enter and cannot determine which figure a lender will accept.

Use amounts that refer to the same property and the same point in the transaction. If you compare a loan balance with an old purchase price, for example, the result may not reflect the relationship between the debt and the property’s current value. When checking a lender’s calculation, ask what value and what loan amount were used, and whether other secured debt is counted.

How to Calculate and Interpret LTV

To calculate a basic LTV, identify the loan amount and the relevant property value, make sure both use the same currency, then divide and multiply by 100. For multiple loans secured against the same property, a combined loan-to-value calculation may include more than one balance. The exact debts included depend on the calculation being reported, so do not assume that a first mortgage is the only amount counted.

• Below 100%: the loan is less than the stated property value.
• At 100%: the loan equals the stated property value.
• Above 100%: the loan exceeds the stated property value.

These descriptions are mathematical, not approval categories. A lender’s treatment of LTV, valuation methods, and other loan features is specific to its process. Do not infer a rate, fee, approval outcome, or required down payment from this calculator alone.

Common Misunderstandings and Limits

LTV is not the same as a down-payment percentage, although the figures can be related in a simple purchase example. If a property costs $250,000 and the only financing is a $200,000 loan, the difference is $50,000, or 20% of the price. But this arithmetic leaves out closing costs, other financing, and any difference between price and the value used for the loan calculation.

LTV also is not a measure of monthly affordability or total borrowing cost. It does not include interest, repayment term, taxes, insurance, maintenance, or other debts. Nor does it automatically equal equity: a property may have additional liens, and selling it can involve expenses. The calculator’s “value minus loan” output is only a basic subtraction using your inputs.

Rounding can create small differences when comparing results. This calculator displays LTV to two decimal places, while a lender’s figures may use a different precision or a different underlying valuation. If a value is uncertain or outdated, the resulting ratio is uncertain too.

Frequently Asked Questions

What is loan-to-value ratio in real estate?
LTV is the loan amount divided by the property value used for the calculation, multiplied by 100. It expresses the loan as a percentage of that value.

How do I calculate LTV?
Divide the loan amount by the property value and multiply by 100. For a $180,000 loan on a $240,000 value, the calculation is $180,000 ÷ $240,000 × 100 = 75%.

What does 80% LTV mean?
It means the loan amount equals 80% of the property value entered. It does not mean the borrower has exactly 20% equity after costs or other debts.

Can LTV be over 100%?
Yes. If the loan amount is greater than the property value used, the calculated ratio exceeds 100%. The figure alone does not explain why or determine a lender’s decision.

Is LTV the same as down payment?
No. LTV compares a loan with a property value. A down payment is money contributed toward a purchase; in a simple transaction with no other financing or costs, it may be the remainder after the loan, but the measures are not interchangeable in every situation.

This calculator is estimate arithmetic for education, not financial advice. Its result is an estimate, and the lender’s disclosure gives the exact figures.

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in loan | Loan amount | $ | 200000 | 1 | 100000000
in value | Property value | $ | 250000 | 1 | 100000000
out ltv | Loan-to-value ratio | % | 100 * loan / value | 2
out equity | Value minus loan amount | $ | value - loan | 2