Compound Interest

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Use JavaScript to calculate compound interest, for example on an investment. Note: This script assumes you make no payments after your initial investment, and your interest is calculated annually. Since credit card interest is usually calculated monthly and you make monthly payments, this script will not accurately calculate credit card interest. Script warns about doubtful data.

COMPOUND INTEREST
Principal Months
1 = .08
2 = .17
3 = .25
4 = .33
5 = .42
6 = .50
7 = .58
8 = .67
9 = .75
10 = .83
11 = .92
Rate
Years
Amount
Interest  
 
   
 
   
 
 
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