Home Equity Line of Credit (HELOC) Calculator, 2025 Edition
Estimate how much you can borrow against your home equity and what your monthly payments might be.
Use this free 2025 HELOC Calculator to estimate your credit limit, draw amount, and monthly payments. Learn how your home's value, mortgage balance, and current interest rates affect what you can borrow, and compare interest-only vs. amortized repayment options.
Most lenders allow 80-90% CLTV
Current average HELOC rates
💡 All calculations are performed locally in your browser. No personal data is stored or shared.
Ready to Calculate Your HELOC
Enter your home and mortgage information on the left to get an instant estimate of your HELOC borrowing capacity and monthly payments.
What Is a HELOC and How Does It Work?
HELOC Definition: A Home Equity Line of Credit is a revolving line of credit secured by your home equity, functioning similarly to a credit card but with typically lower interest rates.
Draw Period: Usually 5-10 years where you can borrow against your credit line, often making interest-only payments. During this time, you can draw, repay, and redraw funds as needed.
Repayment Period: After the draw period ends, typically 10-20 years where you repay both principal and interest. No further borrowing is allowed during this phase.
Variable Interest Rates: Most HELOCs have variable rates tied to the prime rate, meaning your payments can increase or decrease based on market conditions.
Secured Loan: Your home serves as collateral, meaning failure to repay could result in foreclosure. This security allows for lower rates than unsecured debt.