Car Refinance Calculator – Lower Your Monthly Car Payments Auto Car Refinance Calculator Compare your current payment with a refinanced rate. Enter Your Details Loan Balance $ Current APR % New APR % New Term (years) Calculate Copy Print Formula M = L·r/(1−(1+r)^−n) for old vs new APR Related Calculators All CalculatorsBrowse all → Mortgage CalculatorOpen → Loan CalculatorOpen →