Home Equity Calculator

Calculate your home equity, loan-to-value (LTV) ratio, and how much you may be able to borrow against your home.

Formulas Used

Home Equity:
Home Equity = Current Market Value − (Mortgage Balance + Other Liens)

Equity Percentage:
Equity % = (Home Equity ÷ Current Market Value) × 100

Loan-to-Value (LTV) Ratio:
LTV = (Total Outstanding Debt ÷ Current Market Value) × 100

Maximum Borrowable Amount (HELOC / Home Equity Loan):
Max Borrowable = (Current Market Value × Lender Max LTV%) − Total Outstanding Debt

Assumptions & References

  • Home value is the current appraised or estimated market value, not the original purchase price.
  • Most lenders allow a maximum combined LTV (CLTV) of 80%–85% for home equity loans or HELOCs (Consumer Financial Protection Bureau).
  • An LTV at or below 80% typically eliminates Private Mortgage Insurance (PMI) requirements.
  • Other liens include second mortgages, home equity lines already drawn, or any other debt secured by the property.
  • The maximum borrowable amount is an estimate; actual approval depends on credit score, income, and lender policies.
  • This calculator does not account for closing costs, origination fees, or appraisal costs associated with borrowing.
  • References: CFPB Home Equity guidance (consumerfinance.gov), Fannie Mae LTV guidelines, Federal Reserve Regulation Z (TILA).

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