Calculate the future value of your savings and investments with monthly contributions, compound interest, and visual principal vs earnings ratios.
Monthly deposits are added at the end of each month.
Projected Future Balance
After 10 years with monthly compounding
Key Growth Milestones
Year 1
$17,055
+$1,055 interest
Year 5
$51,637
+$11,637 interest
Year 10
$113,669
+$43,669 interest
See how small monthly deposits grow into substantial wealth over time. Compare your total money deposited against compounded interest earnings.
Fast and easy from start to finish
Type in your initial deposit or current investment balance.
Enter how much you plan to save each month.
Choose your expected annual return rate and target time horizon.
What you can do with this tool
Future value projections factoring in initial deposit and regular monthly contributions.
Interactive 1 to 40 year investment time horizon slider.
Visual split bar showing percentage of balance from your deposits vs earned interest.
Milestone breakdown cards showing balances at year 1, 5, 10, and horizon end.
Unlock batch scale, higher resolution, and expanded limits
Compare three different savings strategies side-by-side on interactive graphs.
Calculate real purchasing power with adjustable inflation and capital gains tax.
Export complete monthly balance breakdowns to Excel or PDF.
Everyday walkthroughs and starter ideas for Compound Interest & Savings Growth Calculator
Deposit $10,000 with $500/month at 8% annual return over 20 years ($345,000+ total balance).
See how $200/month compounding over 30 years grows to over $240,000.
File requirements, capabilities, and system limits
Does not account for taxes, inflation, or annual market volatility; projections assume a steady annual rate.
Helpful definitions of features and parameters
The original sum of money lent or invested on which interest is calculated.
Earning returns on both your initial investment and previously accumulated earnings.
How creators, students, and professionals use Compound Interest & Savings Growth Calculator
Planning retirement savings and 401(k) / IRA contributions
Visualizing college fund growth over 10 to 18 years
Understanding how small recurring monthly deposits turn into substantial wealth
Answers to common questions about Compound Interest & Savings Growth Calculator
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods, leading to exponential growth over time.
Historically, broad market stock index funds have averaged roughly 7% to 10% annual returns before inflation, while high-yield savings accounts typically yield 3% to 5%.
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