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Compound Interest Calculator
Math
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Guide
Compound Interest Calculator
Calculate how your investments grow over time with compound interest. See the power of compounding with different frequencies and optional regular contributions.
How to Use
Enter your initial principal amount, annual interest rate, and investment period. Choose a compounding frequency and optionally add monthly contributions. Results update automatically as you type.
Features
- 6 Compounding Frequencies – Daily, weekly, monthly, quarterly, annually, or continuous
- Monthly Contributions – See how regular deposits accelerate growth
- Visual Growth Chart – Stacked bar chart showing contributions vs interest earned
- Year-by-Year Breakdown – Detailed table with balance progression
- Instant Results – Auto-calculates as you adjust inputs
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