The interest calculator on the old and the new (effective March 15, 2014 onwards) Civil Code (hereinafter the Civil Code.) Helps calculation of interest rate calculation indicated. The interest calculator helps those applying the law, since the calculation of the amount plus interest falling due (or overdue up to several years) the claim is time-consuming task. This lightens the Interest Calculator primarily accountant, tax adviser, lawyer, judge or manager users, but of course anyone can use it for private purposes in the interest calculator services.