Compound Interest Calculator.

Automated Compound Interest Calculator

                       

Compound Interest Formula

Future Value of Savings

A = P ( 1 + r / n)nt

Definitions

Amount of savings = Principal originally invested * (1 + decimal annualized rate of interest / number of compounding periods per year)times per year interest is compounded * years invested

Interest Earned

Then to figure out the interest earnings you would subtract the original principal from the result.

A = P ( 1 + r / n)nt - P

Example Math

$1,105.08 = $1,000 ( 1 + 0.0016666667/12) 12 * 5

$1,105.08 - $1,000 = $105.08