VOO Investment Calculator
See how much your money could grow with regular investments in VOO.
Projected Results
This calculator is for illustrative purposes only. Results are based on hypothetical assumptions including a fixed annual return derived from historical averages. Actual investment returns will vary — possibly significantly — due to market conditions, fees, taxes, inflation, and other factors not modeled here. This is not a prediction, guarantee, or recommendation. Consult a licensed financial advisor for personalized projections.
How This Calculator Works
This calculator projects the future value of regular VOO investments using compound growth. You enter a starting amount (if any), a monthly contribution, a time period, and an assumed annual return. The calculator compounds monthly — dividing the annual rate by 12 — and adds your contribution at the end of each month.
The default return rate is 10% per year, which is the approximate long-term average nominal return of the S&P 500 going back to 1926. After inflation, the real return has been closer to 7%. You can adjust the rate to model different scenarios — try 7% for an inflation-adjusted view, or 8% for a conservative nominal estimate.
Unlike our past performance calculator, which uses actual month-by-month VOO prices and dividends, this tool uses a smooth average return. Real markets don't work that way — you'll experience years with +30% gains and years with -20% losses. Over long periods (10+ years), the average tends to smooth out, but short-term results will look nothing like a straight line.
The growth shown in the chart is the difference between what you contributed and what your portfolio is projected to be worth. This is the power of compound interest — with consistent monthly investing, the growth portion eventually dwarfs your contributions. For a deeper look at the VOO and Chill strategy, our guide walks through the buy-and-hold approach step by step. You can also explore VOO's dividend history to understand how quarterly payouts add to total returns, or use the dividend calculator to project your future income from VOO.
Frequently Asked Questions
What return rate should I use for VOO?
The S&P 500 has historically returned about 10% per year on average before inflation, or about 7% after inflation. This calculator defaults to 10% nominal. If you want a more conservative estimate, try 7–8%. Actual returns vary widely year to year — the 10% average includes years with +30% gains and years with -20% losses. You can check any specific period using the past performance calculator.
How much should I invest in VOO per month?
It depends on your income, expenses, and goals. A common guideline is to save 15–20% of your income for retirement. But even $50 or $100 per month can grow significantly over 20–30 years. The most important thing is to start and stay consistent. Try different amounts in the calculator to see the impact.
Is this projection guaranteed?
No. This calculator uses a fixed return rate for illustration. Real markets are volatile — VOO could gain 30% one year and lose 20% the next. Over long periods, the S&P 500 has trended upward historically, but past performance does not guarantee future results. This tool shows the general trajectory of consistent investing, not a precise prediction.
What is the difference between this and the past performance calculator?
The past performance calculator is backward-looking — it uses actual historical VOO prices and dividends to show what really happened. This calculator is forward-looking — it projects what could happen based on an assumed average return. Use the past performance calculator to see VOO's real track record, and this one to plan for the future.