Guide
Project how your investments could grow over time with this free investment returns calculator. Enter your initial amount, monthly contributions, expected return, and time horizon to see future value, total contributions, and compound growth.
Understanding Investment Returns
Investment returns combine capital appreciation (price growth) and income (dividends, interest). Long-term stock market averages hover around 7–10% annually before inflation, but any single year can be sharply negative.
Past performance never guarantees future results. Use conservative assumptions (6–7%) for planning and stress-test with lower returns to build margin of safety.
The Impact of Regular Contributions
Consistent monthly investing through dollar-cost averaging reduces timing risk and builds wealth steadily. Even modest $300/month contributions compound dramatically over 20–30 years.
Increasing contributions by 1% of income each year — especially after raises — accelerates growth without feeling like a sacrifice.
Key Takeaways
- Use conservative return assumptions for long-term planning.
- Monthly contributions often matter more than picking the perfect fund.
- Reinvest dividends to maximize compound growth.
- Diversify across asset classes to manage risk.