Compound Interest Calculator

Free investment tool

Compound Interest Calculator

See how an initial investment and recurring contributions could grow over time. Adjust the assumptions to compare different saving habits and returns.

Your assumptions

Build your scenario

Currency Initial investment Recurring contribution Contribution frequency Expected annual return Time horizon

Advanced assumptions

Compounding frequency Contribution timing Annual contribution increase

Results update automatically as you change the numbers.

Your projection

Estimated value after 30 years

Future balance $0

Total contributed $0

Investment growth $0

Growth share

Growth over time

How the balance grows

Contributions compared with investment growth

Year-by-year view

Projection breakdown

Values are rounded to the nearest dollar.

Year	Contributed	Growth	Ending balance