This HELOC calculator is designed to help you quickly and easily calculate your monthly HELOC payment per your loan term, current interest rate, and remaining balance. Free calculator that finds the HELOC amount you can borrow, along with the monthly payment, interest, total cost, and APR after factoring in closing costs and fees. The home equity line of credit calculator will calculate the costs of the loan and the total interest payment when the loan is paid off. The free HELOC calculator will also calculate the principal and interest payment each month. Use our HELOC payment calculator to estimate interest-only and repayment monthly payments. Model interest rate changes, extra principal, compare lenders, and view an amortization schedule. HELOC Calculator to calculate the monthly payment for HELOC loans. The Home equity line of credit calculator has an amortization schedule that shows you the principal and interest payments for each month. Free HELOC payment calculator with interest-only and principal + interest estimates. See how rate changes affect your monthly payments and total costs. Calculate your HELOC draw period (interest-only) and repayment period (P+I) monthly payments side-by-side. Rate stress-test, payment shock warning, amortization table. Free and instant.