Investing Basics Hub
Investing Basics Hub
Learn ROI, CAGR, compound interest, and how to use investing calculators correctly.
This hub groups the Investing Basics path. Start with the pillar guide, then work through the focused topics.
Learning Path
Follow these lessons in order to build your understanding step by step.
Investing Basics: ROI vs CAGR vs Compound Interest (Complete 2026 Guide + Examples)
Learn the investing basics that matter: ROI, CAGR, and compound interest. Understand when each metric is correct, avoid common mistakes, and use simple examples.
ROI Explained: How to Calculate Return on Investment (With 5 Simple Examples)
Learn ROI in plain English with examples. Calculate ROI for stocks, crypto, real estate, and trading. Understand what ROI misses and when to use CAGR instead.
CAGR Explained: The Best Metric for Long-Term Returns (Formula + Examples)
Learn CAGR (compound annual growth rate) with simple examples. Compare investments over different timeframes and avoid the most common CAGR mistakes.
Compound Interest Explained: How Compounding Builds Wealth (With Contributions)
Learn compound interest with clear examples. See how contributions and time create exponential growth and how small rate changes matter over decades.
ROI vs CAGR: Which One Should You Use? (And When Each Misleads You)
ROI vs CAGR: learn the key differences, when ROI is fine, when CAGR is better, and how to avoid misleading comparisons across timeframes.
Compounding vs Inflation: Real Return Explained (And Why It Matters)
Nominal returns lie without inflation. Learn real return, why inflation matters, and how small differences compound over time. Includes easy examples.
How to Use Investing Calculators Correctly: Common Input Mistakes (CAGR, ROI, Compounding)
Avoid common calculator mistakes: wrong years, ignoring fees, mixing contributions, and confusing ROI vs CAGR. Learn how to input values correctly for real decisions.