Compound Interest Calculator
Estimate compound growth based on an initial amount, recurring contribution, rate assumption, and time period.
Compound Interest Parameters
ESTIMATED COMPOUND GROWTH
Estimated Future Value
Based on your inputs and selected assumptions.
How it works
Compound interest estimates how an amount may grow when gains are reinvested over time. This calculator uses the values entered by the user and does not predict future returns.
The Formula
Future Value
Future Value = Principal × (1 + r / n) ^ (n × t)Where:
- r = annual rate
- n = compounding periods per year
- t = time in years
Recurring contributions are added based on the selected contribution frequency and compounded using the selected assumptions.
Assumptions
Results are estimates only. Actual outcomes may vary by market conditions, fees, taxes, inflation, exchange rates, compounding method, and timing of contributions.
Example Calculation
Using the following assumptions:
- Initial Amount: $1,000
- Monthly Contribution: $100
- Annual Rate: 10%
- Time Period: 5 years
- Compounding: Monthly
Estimated Future Value
After 5 years = $9,453
Total Contributions
$1,000 + ($100 × 60) = $7,000
Estimated Growth
$9,453 - $7,000 = $2,453
Frequently Asked Questions
What does this compound interest calculator estimate?
This compound interest calculator estimates how an initial amount and recurring contributions may grow over time when gains are reinvested based on selected assumptions.
Does this guarantee future returns?
No. Actual returns and outcomes may vary by market conditions, fees, taxes, inflation, exchange rates, compounding method, and timing of contributions. This tool provides a mathematical reference calculation based on your assumptions.
Can this be used for crypto, forex, and gold planning?
Yes, you can use it to estimate compound growth for any asset class by inputting your own assumptions for rates and contribution amounts.
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