CALCULATORS

Compound Interest Calculator 📈

Estimate investment growth, future value, interest earned and total contributions with a detailed compounding schedule.

Investment growth forecastMonthly contributionsYearly growth schedule

Investment Details

Starting amount

Monthly contribution

Annual return rate

Years to grow

Compounding

Contributions

Currency

Quick preset

🧮 This is an estimate for planning and comparison only. Real returns can rise, fall or be negative.

Growth Summary

Estimated final balance

$0.00

Future value after compounding

Total contributions

$0.00

Interest earned

$0.00

Starting amount

$0.00

Growth multiple

0.00×

Without monthly deposits $0.00

Contribution impact $0.00

Change the numbers to compare different rates, deposits and time horizons.

Growth Schedule

Year-by-year investment growth breakdown

The schedule estimates monthly growth using the selected annual return and compounding frequency. Actual investments may not grow smoothly.

Compound Interest Calculator FAQ

How do I use this compound interest calculator?

Enter a starting amount, monthly contribution, annual return rate and number of years. The calculator estimates the final balance, total contributions and interest earned.

What is compound interest?

Compound interest means your balance can grow from both your original money and earlier interest. Over long periods, this can make time a powerful part of the result.

What does interest earned mean?

Interest earned is the estimated amount of growth above the starting amount and monthly contributions. It is the part of the final balance created by compounding.

Why do monthly contributions matter?

Monthly contributions add new money regularly. Those deposits can also compound over time, which can make a large difference in long-term growth estimates.

Are the results guaranteed?

No. This calculator is for simple planning and comparison. Real investment returns can change, and market-based investments can lose value.

Does the compounding frequency affect the estimate?

Yes. The calculator allows daily, weekly, monthly, quarterly or yearly compounding. With the same rate and deposits, the selected frequency can change the projected balance.