Compound Interest Calculator
Project a lump sum with simple or compound interest and monthly contributions.
Inputs
$
$
optional recurring monthly contribution (compound mode only)
Results
Final amount
$16,470.09
Interest earned
$6,470.09
Growth
64.70%
total growth vs principal
Year by year
Y1: 10,512 · Y2: 11,049 · Y3: 11,615 · Y4: 12,209 · Y5: 12,834 · Y6: 13,490 · Y7: 14,180 · Y8: 14,906 · Y9: 15,668 · Y10: 16,470
About this tool
Enter a principal, annual rate, term, and compounding frequency for the final amount, total interest, and a year-by-year breakdown, with monthly contributions.
How to use
- 1Choose the interest type — simple or compound — and, for compound mode, the compounding frequency.
- 2Enter the principal, the annual rate in percent, and the term in years.
- 3Optionally enter a recurring monthly contribution to model a savings plan.
- 4Read the final amount, interest earned, and the year-by-year line, which lists up to 12 years and truncates the rest.
Frequently asked questions
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