Compound Interest Calculator
Calculate how your investment grows over time with compound interest. Includes monthly contributions.
$
%
1 year50 years
10 years$
Final Amount
$40,491.01
Initial Investment
$10,000.00
Total Contributions
$12,000.00
Total Interest
$18,491.01
Growth Over Time
Year 1
$12K
Year 2
$14K
Year 3
$17K
Year 4
$19K
Year 5
$22K
Year 6
$25K
Year 7
$29K
Year 8
$32K
Year 9
$36K
Year 10
$40K
How to use
1
Enter your initial investment amount and annual interest rate
2
Set the time period and how often interest compounds
3
Add optional monthly contributions to see how they accelerate growth