About StockLeo
StockLeo helps everyday U.S. investors understand the math behind investing. No hype. No stock picks. Just calculators.
Our mission
Investing is full of numbers — capital gains taxes, dividend yields, compounding, ETF overlap, stock splits, and equity compensation. Most investors never get a clear, honest look at how those numbers actually work. StockLeo exists to fix that with clean, free, interactive calculators that show the math and explain it in plain English.
What StockLeo is
- A hub of free, evergreen calculators for U.S. investors.
- Educational tools that show assumptions and explain the math.
- Fast, mobile-friendly, and usable without an account.
- Shareable — your inputs live in the URL so you can bookmark or send a calculation to a friend.
What StockLeo is not
- Not a source of financial, tax, legal, or investment advice.
- Not a stock-picking service or community.
- Not a daily news or market-prediction website.
- Not connected to live brokerage accounts or real-time prices.
How we keep it trustworthy
Every calculator clearly labels its results as estimates for educational purposes only. Tax figures use simplified federal rules, and sample data such as ETF holdings and historical returns is clearly marked as illustrative. We never present estimates as professional advice, and we encourage you to consult a qualified professional before making financial decisions.
Ready to explore? Browse all calculators or jump straight to the capital gains tax calculator.