Future value
$196,665.39
Compound Interest Calculator
Project savings and investment growth with compounding and recurring contributions.
Key Terms (Click to expand)
Compounding
Growth on both your original money and previously earned growth.
Recurring contribution
A repeated deposit added at the selected contribution frequency.
Compounding frequency
How often returns are applied to your balance (monthly, quarterly, or yearly).
Total contributions
Initial deposit plus all recurring deposits over the selected horizon.
Total growth
Future value minus total contributions.
Tool
Total contributions
$82,000.00
Total growth
$114,665.39
Compound interest assumptions
| Initial deposit | $10,000.00 |
|---|---|
| Recurring contribution | $300.00 |
| Contribution frequency | monthly |
| Compounding frequency | monthly |
| Time horizon | 20 years |
Yearly growth summary
Methodology
The calculator compounds growth at the selected frequency and applies recurring deposits at the selected contribution cadence.
- Future value combines starting balance, recurring deposits, and compound growth.
- Total contributions = initial deposit + all recurring deposits.
- Total growth = future value - total contributions.
- Contribution timing is end-of-period.
Worked Example
Starting with $10,000 and adding $300 monthly, at 7% for 20 years, projected future value is $196,665.39.
Assumptions and Limitations
- Growth assumes constant annual return and fixed compounding frequency.
- Recurring deposits are modeled with end-of-period timing.
- Taxes, fees, inflation, and market volatility are not modeled in this estimate.
FAQ
What does compounding mean?
It means returns are earned on both your principal and previously earned returns.
Is this guaranteed investment growth?
No. This is a projection based on constant input assumptions, not a guaranteed outcome.
Are taxes or fees included?
No. This estimate does not include taxes, investment fees, or inflation adjustments.