Compound Interest Calculator
Calculate compound interest with principal, rate, time, and frequency. Add monthly contributions to see investment growth. View total interest earned and effective annual rate.
Part of Yoopla's 445+ free browser tools.
How to Use Compound Interest Calculator
- 1
Enter initial principal amount.
- 2
Set annual interest rate (%).
- 3
Choose time period (years).
- 4
Select compounding frequency.
- 5
Add monthly contributions (optional).
- 6
View future value and interest earned.
Frequently Asked Questions
What is compound interest?▾
Compound interest earns interest on interest. Formula: FV = P(1 + r/n)^(nt). More frequent compounding = higher returns.
How does compounding frequency affect growth?▾
Daily compounding grows faster than monthly or yearly. Difference increases with time and higher rates.
What is effective annual rate?▾
Effective annual rate (EAR) accounts for compounding: (1 + r/n)^n - 1. Shows true annual return.
Related Tools
Explore the ecosystem around
Compound Interest Calculator
Category: Calculators
Use this tool as your starting point, then branch into adjacent tools, topic hubs, comparisons, and free alternatives.
Related Tools
Discover other tools that work great with Compound Interest Calculator
Investment Calculator
Calculate investment returns
Explore More Tools →Retirement Calculator
Plan retirement savings
Explore More Tools →ROI Calculator
Calculate return on investment
Explore More Tools →Percentage Calculator
Calculate percentages and percent changes online for free.
Explore More Tools →VAT Calculator
Calculate VAT online — add or remove tax from prices.
Explore More Tools →GPA Calculator
Calculate your GPA instantly
Explore More Tools →Topic Hubs
Go deeper into pillar pages and connected workflows
Related Articles & Guides
Learn more about using tools effectively
Tool Comparisons
Compare features and choose the right tool
Popular Alternatives
Free alternatives to popular paid tools
Use Cases
Practical use cases with this tool
Related Formulas
Mathematical formulas related to this tool
Best Tools Collections
Curated lists of top-rated tools