Average Return Calculator
What is Average Return?
The average return measures how an investment has performed over time. Two common methods are used: CAGR (Compound Annual Growth Rate) and the arithmetic average return. Each tells a different story, and our calculator above helps you compute both instantly.
CAGR – The Smoothed Growth Rate
CAGR gives you the constant annual return that would take your beginning balance to the ending balance, assuming profits are reinvested. It’s the geometric mean and ignores yearly ups and downs.
Example: $10,000 growing to $16,105 in 5 years yields a CAGR of 10% — exactly what you’d need every year to reach the final amount.
Arithmetic Average Return
This is the simple average of annual returns. While easy to calculate, it can overstate performance when returns fluctuate.
If a portfolio returned +20%, -10%, and +30% over three years, the arithmetic average is (20 – 10 + 30) / 3 = 13.33%.
How to Use the Calculator
- CAGR tab: Enter starting value, ending value, and the number of years. Click “Calculate CAGR” to see the annual growth rate and total return.
- Arithmetic Average tab: Paste or type yearly returns (as percentages) separated by commas. The tool calculates the simple average immediately.
Results appear as soon as you click the button, with clear feedback and validation.
Why It Matters
Investors use CAGR to compare long‑term fund performance, while arithmetic averages are used in risk analysis and expected return estimates. Understanding both helps you make smarter financial decisions and avoid misleading claims about average returns.
