Compound Interest Calculator

See your future
wealth right now

Enter your numbers below. Watch a live chart and year-by-year breakdown update instantly — so you can see exactly what time and consistency will do for your money.

Your Numbers

Type or drag to adjust

Live
Monthly Contribution how much you invest each month
$
$0$3,000/mo
Current Age we'll calculate to age 65
yrs
1064
Annual Return Rate historical S&P avg ≈ 7%
%
1%20%
Starting Balance any lump sum you have today
$
$0$50,000
Quick Scenarios
Estimated Balance at Age 65
$1,147,000
over 43 years of compounding
7.4×
money multiplier
Your Total Contributions
$154,800
what you personally put in
Market Growth Earned
$992,200
earned for you by compounding
Years to Double (Rule of 72)
10.3 yrs
at your chosen return rate
Contribution vs. Growth Breakdown
Your contributions
Market growth
Portfolio Growth Over Time
Showing growth from age 22 to 65

Year-by-Year Breakdown

See exactly how your money grows each year

Year / Age Annual Contrib. Total Contrib. Interest Earned Total Balance
Ready to start investing?
These numbers are based on real historical returns. The best time to start was yesterday — the second best time is today. Learn exactly how to open your first account.
Learn how → Your path