Compound Interest & CD Calculator: What It Does
Computes investment growth over time with customizable compounding frequencies (daily, monthly, quarterly, semi-annually, annually). It visualizes principal growth versus compound interest accumulation.
Example
Principal: 10,000, Rate: 8%, Time: 5 years, Compounded MonthlyTotal: 14,898.46, Interest: 4,898.46Applies compound interest formula A = P(1 + r/n)^(nt).
How to Use
- Enter initial deposit, interest rate, duration, and compounding interval.
- Optionally add recurring monthly or annual deposits.
- Review the summary breakdown and schedule table.
Limitations
- Assumes a constant interest rate throughout the entire investment duration.
- Inflation-adjusted purchasing power requires separate inflation modeling.
Frequently Asked Questions
What is the difference between simple and compound interest?
Simple interest calculates returns only on the original principal, whereas compound interest adds earned interest back to the base, generating interest on interest.
How does compounding frequency impact total yield?
More frequent compounding intervals (e.g. daily vs annual) yield slightly higher final amounts due to quicker reinvestment of accrued interest.
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