🏠 Home Equity & HELOC Borrowing Calculator
Calculate your built-in home equity, current loan-to-value (LTV) percentage, and maximum borrowing capacity for a HELOC or cash-out refinance.
Free No Signup Required Browser-Based
Total Built-In Home Equity
$220,000
You own 44.0% of your home outright (Current LTV: 56.0%)
Max HELOC Borrowing Limit (85% LTV)
$145,000Remaining Loan Debt
$280,000How to Use Home Equity & HELOC Borrowing Calculator
- Enter current estimated home market value and remaining mortgage balance
- Select lender maximum LTV threshold (80%, 85%, or 90%)
- Review total equity ownership and maximum available HELOC credit line
📖 Technical Encyclopedia & Standards Reference
Calculate your built-in home equity, current loan-to-value (LTV) percentage, and maximum borrowing capacity for a HELOC or cash-out refinance. This tool computes outputs according to official open technical and scientific specifications.
✓ Open Standards AlignmentCompliant with ISO/IEC, W3C, NIST, and standard mathematical formulations.
✓ 100% Client-Side / SecureZero server logging. Computations execute entirely in your local browser sandbox.
Explore more formulas in our Tools Encyclopedia & Glossary →
Frequently Asked Questions
What is Home Equity?
Home Equity is the portion of your property that you own outright: Home Equity = Current Home Market Value - Remaining Mortgage Debt.
What is the maximum LTV limit for a HELOC?
Most financial institutions permit borrowing up to 80% to 85% combined loan-to-value (CLTV) of the home’s appraised market value.