Compound Interest Calculator

Determine how much your money can grow — or how long it lasts — using the power of compound interest.

Step 1

Initial Investment

Initial Investment *

Amount you have available to invest initially.

Step 2

Interest Rate

Annual Rate *

Loading current rate…

Compound Freq.

Step 3

Contributions

Contribution Amount

Contribution Frequency

Length of Time *

yrs

Step 4

Withdrawals (Optional)

Withdrawal Amount

Deducted after interest each period.

Withdrawal Frequency

⚠ If withdrawals exceed earned interest, principal will be reduced.

📊 Results

Final Balance

—

Total Contributions

—

Principal + added funds

Interest Earned

—

Without withdrawals

Interest w/ Withdrawals

—

Interest actually retained

Net Gain / Loss

—

vs. initial investment

Total Withdrawals

—

Net removed

Balance Over Time

Balance (with withdrawals)

Balance (no withdrawals)

Cumulative interest

Year-by-Year Breakdown

Year	Balance	Interest Earned	Contributions	Withdrawals	Net Interest (w/ Wdw)

📈

Your results will appear here

Fill in the fields above and click Calculate to see how your money grows.