Investment Return Calculator | Free CAGR & Growth Projection Tool
Calculate CAGR, project future investment growth, and find the required return to reach your financial goals.
📖 Want to understand your results?
Read our complete guide to the Investment Return Calculator — with real-world examples, expert insights, and pro tips.
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Understanding Investment Returns
CAGR (Compound Annual Growth Rate) is the best measure of investment performance over time. Unlike simple average returns, CAGR accounts for compounding and gives you the true annualized growth rate of an investment.
CAGR Formula
For example, if you invested $10,000 and it grew to $20,000 over 5 years:
- CAGR = ($20,000 ÷ $10,000)^(1÷5) − 1 = 14.87%
- Total Return = ($20,000 − $10,000) ÷ $10,000 × 100 = 100%
- Simple Average Return = 100% ÷ 5 = 20% (misleading!)
Note how the simple average (20%) overstates the true annualized return (14.87%). This is why CAGR is the preferred metric — it correctly accounts for compounding.
Nominal vs Real (Inflation-Adjusted) Returns
Nominal returns are the raw percentage gains. Real returnsadjust for inflation to show true purchasing power growth. With 3% inflation:
| Nominal Return | Inflation | Real Return |
|---|---|---|
| 12% | 3% | ~8.7% |
| 8% | 3% | ~4.9% |
| 6% | 3% | ~2.9% |
| 3% | 3% | ~0% (break even) |
How to Use This Calculator
Enter starting value, ending value, and years to find the compound annual growth rate of any investment.
Set initial investment, expected return rate, time horizon, and monthly contributions to project future value.
Enter current value and target to find the annual return rate needed to reach your investment goal.
Investment Return Tips
- Focus on long-term CAGR: Short-term volatility is normal — the S&P 500 has historically returned ~10% annualized over any 20-year period.
- Diversify your portfolio: A mix of stocks, bonds, and real estate smooths returns and reduces risk over time.
- Minimize fees: A 1% annual fee reduces your final portfolio value by ~28% over 30 years.
- Reinvest dividends: Dividend reinvestment dramatically boosts CAGR over long periods.
- Don't time the market: Missing just the 10 best days in a 20-year period can cut your returns in half.
Investment Return Calculator Pros & Cons
Pros
- ✅ Instant CAGR & total return results
- ✅ Growth projection & required return modes
- ✅ Free forever — no subscriptions
- ✅ Works offline after page load
- ✅ No sign-up or email required
Cons
- ✗ No Excel/CSV export option
- ✗ No dedicated mobile app
Frequently Asked Questions
What is CAGR?
CAGR (Compound Annual Growth Rate) is the annualized rate of return that smooths out volatility over time. Formula: CAGR = (End/Start)^(1/Years) − 1. It's the best way to compare investments of different time periods.
How do I calculate the return rate needed to reach a goal?
Use our Required Return calculator. Enter your current investment, target value, and time horizon to find the annual return rate needed to reach your goal.
How does inflation affect investment returns?
Inflation reduces purchasing power. A 7% nominal return with 3% inflation means your real return is approximately 4%. Always consider inflation when planning long-term investments.
Reviewed by James Rodriguez, CFA
Finance & Investment AnalystChartered Financial Analyst with 10+ years in investment research and financial planning.
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