Compound Interest Calculator

COMPOUND GROWTH PLANNER

See what time can do for your money

Explore how your starting balance, recurring investments, and compound returns could work together.

Your assumptionsChange any number to recalculate your projection.

Assumes contributions at the end of each month and a constant return. Taxes, fees, inflation, and withdrawals are not included.

35%INTEREST
of your future balance
PROJECTED FUTURE BALANCE $44,665

After 10 years of monthly contributions and compounding.

COMPOUND INTEREST EARNED$15,665
Starting amount$5,000
Added contributions$24,000
Total invested$29,000
Your money over timeProjected balance over 10 years
BalanceInvested
View year-by-year breakdown
YearBalanceInvestedInterest

Illustrative only. Actual investment returns vary and may be negative in some years.

Use the projection as a planning range, not a promise

The calculator applies the return and compounding assumptions you enter across the full timeline. Real investment returns move up and down, so try several hypothetical rates instead of treating one projection as a forecast. Taxes, fees, inflation, and withdrawals can also change the outcome.

Want to take the next step? Use the Investment Calculator to test recurring contribution scenarios, the Million-Dollar Goal Calculator to work backward from a target, or start with Investing 101: Your First Three Steps to Becoming an Investor.

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