HELOC Calculator
Estimate how large a home equity line you might qualify for and what a payment could look like. Enter home value, mortgage balance, combined LTV cap, interest rate, draw amount, and repayment years. The tool shows maximum line size, remaining equity, an interest-only monthly payment, and an amortizing principal-and-interest payment. This is not a loan offer or a lender quote. Figures are estimates that run in your browser and are never sent to a server.
Estimate
- Max line (80% CLTV)
- $70,000
- Remaining equity after draw
- $100,000
- Interest-only monthly
- $354.17
- Amortizing P&I monthly
- $492.37
This is not a loan offer. It is an estimate only. A lender sets actual approval, rate, fees, and payments after reviewing credit, income, and the property.
Frequently asked questions
- How much can I borrow on a HELOC?
- A common ceiling is home value × combined LTV minus the mortgage balance, not below zero. Many lenders use about 80–85% combined LTV. This tool estimates that line; a lender decides the actual amount.
- Interest-only vs principal-and-interest?
- Interest-only is the draw × annual rate / 12. Principal-and-interest amortizes the draw over the repayment years using the standard mortgage formula.
- Is this a loan offer?
- No. It is an estimate for planning. Actual approval, rate, fees, and payments come from a lender and depend on credit, income, and property review.
- What is combined LTV?
- Combined loan-to-value is mortgage plus HELOC divided by home value. The default here is 80%. Your lender may use a different cap.
- Should the draw equal the full line?
- Not necessarily. You can draw less than the maximum. Payments on this page use the draw amount you enter.
- Are taxes, insurance, or HELOC fees included?
- No. Payments shown are interest-only or principal-and-interest on the draw. Closing costs, annual fees, and property taxes are separate.