Why Use This Investment Calculator?
Want to know how much money you would have made if you had just held instead of selling? This calculator shows you exactly what your returns would have been.
Or maybe you're wondering "What if I had bought that stock?" Enter your investment details above and we'll calculate your hypothetical returns using real historical data.
Covers US equities and major cryptocurrencies with extensive historical data
How Our Calculator Works
Our investment calculator uses a simple but accurate methodology:
- Historical Price Data: We fetch real market data from Alpha Vantage API, covering 20+ years of stock and crypto prices
- Share Calculation: Divide your investment amount by the historical price to determine how many shares you would have purchased
- Current Value: Multiply those shares by today's closing price to show your current portfolio value
- Return Metrics: Calculate total profit, percentage gain, and annualized rate of return for easy comparison
Note: Calculations reflect price changes only and do not include dividends, fees, or tax implications.
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Frequently Asked Questions
How does the investment calculator work?
Our calculator uses real historical price data from Alpha Vantage to calculate exact returns. We take your investment amount, find the stock or crypto price on your chosen date, calculate how many shares you would have bought, and multiply by today's price to show your current value.
Does this include dividends?
Currently, our calculator shows price appreciation only and does not include dividend reinvestment. For dividend-paying stocks, your actual returns would be higher than what we display.
How accurate are the calculations?
We use official historical price data from reliable financial APIs. Our calculations are accurate for price changes, but don't account for factors like brokerage fees, taxes, stock splits (auto-adjusted in data), or dividend payments.
What time period can I calculate returns for?
You can calculate returns from as far back as 20+ years ago for most major stocks, though cryptocurrency data is more limited (typically 5-10 years). The calculator requires at least 1 year of historical data.
Is this calculator free to use?
Yes! Our investment calculator is completely free with no registration required. Calculate returns for any stock or cryptocurrency as many times as you want.
Can I use this for investment advice?
This calculator is for educational and informational purposes only. Past performance does not guarantee future results. Always consult with a qualified financial advisor before making investment decisions.
