Investment growth

Compound Interest Calculator

Estimate how an initial balance, monthly contributions, annual return, and compounding frequency can grow over time.

Future valueprojected ending balance
Growth splitdeposits vs earnings
Yearly tabletrack each year

Investment inputs

Projected future value $0
Total contributions$0
Investment growth$0
Ending principal share0%
Average yearly growth$0

Enter your numbers to compare contributions and compound growth.

Growth over time

ending balance by year

Yearly projection

YearContributionsGrowthBalance

How this calculator works

The calculator applies periodic compounding to the current balance and adds monthly contributions through the projection period. Actual returns can vary and are not guaranteed.