What this portfolio return calculator does
This calculator helps you measure how your investments performed over a period of time. It is designed for investors who made deposits or withdrawals and want a cleaner estimate than simply comparing starting and ending balances.
You enter your beginning value, ending value, contributions, withdrawals, and years invested. The calculator then computes:
- Adjusted ending value (ending value corrected for cash flows)
- Total return over the full period
- Annualized return (CAGR-style estimate) so you can compare across time periods
Formula used
1) Adjust for deposits and withdrawals
Adjusted Ending Value = Ending Value + Withdrawals − Contributions
2) Total return
Total Return = (Adjusted Ending Value − Beginning Value) / Beginning Value
3) Annualized return
Annualized Return = (Adjusted Ending Value / Beginning Value) ^ (1 / Years) − 1
This annualized figure provides a normalized “per year” growth rate, making it easier to compare different portfolios or periods.
How to use it correctly
- Use the portfolio value at the exact beginning and end of your period.
- Enter total contributions and withdrawals over that same period.
- Use years as a decimal when needed (for example, 18 months = 1.5 years).
- Keep inputs consistent (same accounts, same currency, same date boundaries).
Example
Suppose you started with $50,000, ended with $71,000, contributed $10,000, withdrew $2,000, over 4 years.
- Adjusted Ending Value = 71,000 + 2,000 − 10,000 = $63,000
- Total Return = (63,000 − 50,000) / 50,000 = 26%
- Annualized Return ≈ (63,000 / 50,000)^(1/4) − 1 = 5.95% per year
Important limitations
This calculator is a practical estimate, not a full institutional performance report. It does not track the exact timing of each cash flow. If you need precision for irregular contribution dates, use:
- XIRR (money-weighted return with dated cash flows), or
- Time-weighted return (TWR) for manager performance evaluation.
Tips to improve your portfolio rate of return
- Keep costs low (expense ratios and trading fees matter).
- Stay diversified across asset classes.
- Rebalance periodically to maintain target risk.
- Avoid emotional buying and selling during volatility.
- Focus on long-term consistency instead of short-term noise.
Frequently asked questions
Is annualized return the same as average yearly return?
Not exactly. Annualized return reflects compounding, while a simple arithmetic average does not.
Can total return be negative?
Yes. If your adjusted ending value is below your beginning value, your return is negative.
Should I include dividends and interest?
Yes. If dividends and interest stay in the account, they are already reflected in the ending portfolio value.