Free Compound Growth Calculator - Calculate Investment Growth
Calculate your investment growth with regular monthly deposits and compound interest
Formula & Methodology
This formula applies compound interest to your initial investment while simultaneously compounding the value of your regular monthly deposits to predict total wealth over time.
- FV = PV × (1 + r)^n + PMT × [((1 + r)^n - 1) / r]
Worked Example
Using the Compound Growth with Monthly Deposits Calculator: apply the formula above to your input values. For instance, FV = PV × (1 + r)^n + PMT × [((1 + r)^n - 1) / r]. The tool performs each step instantly and shows the result.
Frequently Asked Questions
How does compound growth work?
Returns are earned on both your original money and previously earned returns, so growth accelerates over time.
Why is time the biggest factor?
The longer money compounds, the larger the exponential effect, which is why starting early beats investing more later.
How do regular contributions change results?
Adding money regularly gives each new deposit its own runway to compound, dramatically increasing the final total.