ROI vs ROE: Understanding Investment Returns
Published on May 15, 2026 | 9 min read
What is ROI?
ROI (Return on Investment) measures the profitability of an investment relative to its cost. It shows how much profit you make for every dollar invested.
ROI Formula:
ROI = (Net Profit / Initial Investment) × 100
Example:
If you invest $1,000 and earn $200 profit:
- ROI = ($200 / $1,000) × 100 = 20%
What is ROE?
ROE (Return on Equity) measures how efficiently a company uses shareholders' equity to generate profit. It's primarily used for evaluating company performance.
ROE Formula:
ROE = (Net Income / Shareholders' Equity) × 100
Example:
If a company has $50 million in equity and $10 million in net income:
- ROE = ($10M / $50M) × 100 = 20%
Key Differences
| Aspect | ROI | ROE |
|---|---|---|
| Scope | Individual investment | Company performance |
| Used By | Investors, businesses | Analysts, investors |
| Time Frame | Any period | Usually annual |
| Calculation | Simple | More complex |
When to Use Each Metric
Use ROI When:
- Evaluating personal investments
- Comparing different investment options
- Assessing business projects
- Calculating marketing campaign effectiveness
Use ROE When:
- Comparing company profitability
- Evaluating stock investments
- Assessing management effectiveness
- Benchmarking against competitors
Interpreting the Numbers
- Higher is Better: Both ROI and ROE—higher percentages indicate better returns
- Industry Matters: Compare ROE within the same industry
- Context is Key: A 20% ROI might be excellent for real estate but low for stocks
Conclusion
Understanding ROI and ROE helps you make informed investment decisions. Use ROI for personal investments and ROE for evaluating companies. Both metrics are essential tools for successful investing.