This tool is for informational purposes only. Results are estimates and are not financial, tax, investment, or legal advice.

Home Equity Calculator - Property Value Minus Secured Debt

Equity Is the Residual Value After Secured Debt

Home equity is the difference between the property's estimated market value and the secured loan balances represented in the inputs. The property value should be entered as a full market-value estimate; the mortgage belongs on the debt side rather than being netted out twice.

Lenders may use loan-to-value or combined-loan-to-value limits when evaluating a new HELOC or home-equity loan. Any maximum borrowing percentage shown by a calculator is an illustrative scenario unless it comes from the actual lender's underwriting criteria.

Home equity changes from both sides of the calculation: the property's market value can move and the mortgage balance changes as principal is repaid. That means an equity estimate is only as current as the value you use for the home. For borrowing decisions, lenders usually rely on their own valuation and combined-loan-to-value rules rather than your estimate. Use the calculator to understand the relationship between value, liens and equity, not to predict an approved HELOC amount.

Frequently Asked Questions

Should I enter the home's full value or value after the mortgage?

Enter the full estimated property value and list the mortgage or secured balance separately so equity is calculated once.

Is all calculated equity available to borrow?

No. Lenders can require an equity cushion and apply their own CLTV, credit, income and property rules.

Why can a lender calculate less available equity than I do?

The lender may use a different property valuation and impose a maximum combined loan-to-value ratio, leaving part of the equity unavailable for borrowing.

Methodology & Related Tools

Review how RatioCalc builds, tests and updates calculator models before using an estimate for a material decision.

Accuracy review

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Site-wide consistency review: September 4, 2026.

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