Online calculator to calculate **interest rate** of a product using david cantrell's approximate solution method.
Calculate the monthly payment to be paid with the given number of payments, interest rate, and loan amount.

Online calculator to calculate **interest rate** of a product using david cantrell's approximate solution method.
Calculate the monthly payment to be paid with the given number of payments, interest rate, and loan amount.

Code to add this calci to your website

Where, q = log[ 1 + (1/N) ] / log2 N = n * 12 P = Payment Amount A = Initial Amount N = Number of Payments |

Calculate the interest rate by using David Cantrell's Approximate solution method.