The Compound Interest Calculator is just one of eight calculators in the Essential Calculators for the Web suite! Visit Desert Cactus Software for more details! Essential Calculators for the Web tm Compound Interest Calculator Calculate the Compounded Amount (Hint: Enter the opening balance in the "Principal" box below to calculate what the compounded amount will be.) Calculate the Opening Balance (Hint: Enter the compounded amount in the "Principal" box below to calculate the opening balance you need to obtain your goal.) Base Calculations on a 360-Day Year Base Calculations on a 365-Day Year Principal: Nominal Interest Rate: Total Number of Days: Compound on a Daily Basis Compound on a Weekly Basis Compound on a Bi-Weekly Basis Compound on a Semi-Monthly Basis Compound on a Monthly Basis Compound on a Quarterly Basis Compound on a Semi-Annual Basis Compound on an Annual Basis Copyright © 1998 - 1999 Desert Cactus Software Corporation.