Free Financial Calculators

Simple, instant tools for everyday investing math — no signup, no ads, just answers.

• Dividend Yield Calculator Estimate a stock's dividend yield from its price and annual dividend.
• DCA (Dollar-Cost Averaging) Return Calculator Project the future value of an initial investment plus monthly contributions.
• CAGR / Compound Interest Calculator Find the compound annual growth rate between two values, or project a future value.
• Stock Profit/Loss Calculator Calculate your exact trade profit or loss in dollars and percent, including fees.
• Break-Even Stock Price Calculator Find the exact sell price needed to break even after buy and sell fees.
• Position Size / Risk Calculator Find the max shares to buy so a stopped-out trade only risks a set % of your account.
• Rule of 72 Calculator Estimate how many years it takes to double your money, or the rate needed to.
• Stock Split Adjustment Calculator See your post-split share count and price for any split or reverse split ratio.
• ROI Calculator Find your return on investment in dollars, percent, and annualized rate.
• Inflation-Adjusted Return Calculator See what your investment growth is really worth after accounting for inflation.
• Average Cost Basis Calculator Find your weighted average cost per share across multiple purchases.
• Portfolio Allocation Calculator See your portfolio's percentage split across stocks, bonds, cash, and other assets.
• FIRE Calculator (Financial Independence, Retire Early) Find your FIRE number and how many years of saving it will take to reach it.
• Options Profit Calculator Find the profit or loss, breakeven price, and return for a single call or put option.
• Retirement Calculator See whether your projected savings will last through your expected retirement.
• Margin Calculator Find your margin call price, interest cost, and breakeven price for a leveraged position.
• DRIP (Dividend Reinvestment) Calculator See how much reinvesting dividends adds to your portfolio compared to taking cash.
• P/E Ratio Calculator Compute P/E, earnings yield, and PEG ratio, and compare against an industry average.
• Compound Interest Calculator Project a lump sum plus contributions at a chosen rate and compounding frequency.

Articles & Guides

Plain-English explainers on the concepts behind the numbers. Looking for analyst ratings or P/E ratio guides? They've moved to Learn.

• How to Read a Stock Chart: A Beginner's Guide Timeframes, highs and lows, trend, and volume — without the jargon.
• What Moves a Stock Price? Earnings, news, ratings, and what "most active" really means.
• Diversification 101: How Many Stocks Should You Own? What diversification actually protects against, and how much is enough.
• What Is Beta? Measuring a Stock's Volatility and Risk A single number for how much a stock swings relative to the market.
• Market Orders vs. Limit Orders What actually happens to your trade with each order type.

Not sure what a term means? Check the Terms Explained glossary.