See how your money grows over time with compound interest. Calculate savings and investment returns.
Enter your savings plan information
High-Yield Savings: 4-5% annual
Index Funds (S&P 500): ~10% historical average
Bonds: 3-6% annual
Conservative Portfolio: 5-7% annual
Watch your money grow over time
| Year | Total Balance | You Contributed | Interest Earned |
|---|---|---|---|
| 1 | $3,507 | $3,400 | $107 |
| 2 | $6,142 | $5,800 | $342 |
| 3 | $8,912 | $8,200 | $712 |
| 4 | $11,824 | $10,600 | $1,224 |
| 5 | $14,885 | $13,000 | $1,885 |
| 6 | $18,102 | $15,400 | $2,702 |
| 7 | $21,484 | $17,800 | $3,684 |
| 8 | $25,039 | $20,200 | $4,839 |
| 9 | $28,775 | $22,600 | $6,175 |
| 10 | $32,703 | $25,000 | $7,703 |
NaN% of your final balance is from compound interest!
Starting 10 years earlier could double or triple your final balance, even with the same monthly contribution.
The earlier you start, the more compound interest works in your favor!
Compound interest is "interest on interest." Your money earns interest, then that interest earns interest, creating exponential growth. It's the most powerful wealth-building tool when you start early and stay consistent.
High-yield savings accounts: 4-5%. Stock market (S&P 500 historical average): ~10%. Conservative portfolio (60/40 stocks/bonds): 6-7%. Use conservative estimates for planning. Past performance doesn't guarantee future returns.
Both matter! A large initial deposit gets the compounding started, but consistent monthly contributions often contribute more to your final balance. The key is consistency - automate monthly contributions and never stop.
Begin with a savings challenge and watch compound interest work its magic
Initial Deposit: $1,000
Monthly Contribution: $200
Annual Interest Rate: 5%
Time Period: 10 years
Compounding Frequency: Monthly
Future Value: $0
Your Contributions: $0
Interest Earned: $0
Interest as % of Final Balance: NaN%
| Year | Total Balance | Contributed | Interest Earned |
|---|---|---|---|
| Year 1 | $3,507 | $3,400 | $107 |
| Year 2 | $6,142 | $5,800 | $342 |
| Year 3 | $8,912 | $8,200 | $712 |
| Year 4 | $11,824 | $10,600 | $1,224 |
| Year 5 | $14,885 | $13,000 | $1,885 |
| Year 6 | $18,102 | $15,400 | $2,702 |
| Year 7 | $21,484 | $17,800 | $3,684 |
| Year 8 | $25,039 | $20,200 | $4,839 |
| Year 9 | $28,775 | $22,600 | $6,175 |
| Year 10 | $32,703 | $25,000 | $7,703 |
• Start as early as possible - time is your best ally
• Contribute consistently every month - automate it!
• Reinvest dividends and interest
• Avoid withdrawing early - let compound interest work
• Consider tax-advantaged accounts (401k, IRA, Roth IRA)