Free Stock Market Calculators
Use Stock Titan's financial calculators to check stock trade profit, position size, stop loss levels, dividend yield, dollar cost averaging, historical returns, stock splits, valuation ratios, covered calls, and cash-secured puts. These tools are built for investors and traders who want fast calculations with clear assumptions, formulas, examples, and related market research workflows.
Beginner investing calculators
Build basic return, compounding, and income assumptions before committing capital.
Investment Growth Calculator
Estimate how investments could grow with regular contributions, compounding, and inflation-aware projections.
DCA Calculator
Simulate dollar cost averaging and compare periodic investing against a lump sum approach.
Dividend Yield & DRIP Calculator
Calculate dividend yield and project long-term income with reinvested or cash dividends.
Rule of 72 Calculator
Estimate how long it takes for an investment to double at a given annual return rate.
Savings Goal Calculator
Find the monthly savings needed to reach a financial target with compounding assumptions.
Stock trading and risk calculators
Size trades, define loss limits, and understand the price needed for a trade to work.
Stock Profit Calculator
Calculate stock trading profit or loss after broker fees and estimated capital gains tax.
Position Size Calculator
Calculate the number of shares to buy based on account size, risk tolerance, and stop loss.
Break-Even Calculator
Find the exact sell price needed to break even on a stock trade after fees and taxes.
Stop Loss Calculator
Calculate stop loss prices and position size using percentage, dollar, or ATR-based methods.
Portfolio analysis calculators
Review realized cost, historical returns, split adjustments, and valuation assumptions.
Cost Basis Calculator
Calculate stock cost basis and average price across multiple purchases and fractional shares.
Stock Return Calculator
See how a stock investment performed over time using historical price data and charts.
Stock Split Calculator
Calculate how forward or reverse splits affect shares, price per share, and cost basis.
P/E Ratio Calculator
Evaluate valuation by calculating P/E ratio, PEG ratio, and earnings yield.
Options income calculators
Model premium income, assignment outcomes, and effective breakeven before selling options.
Covered Call Calculator
Calculate premium income, annualized return, breakeven, and assignment scenarios for covered calls.
Cash-Secured Put Calculator
Calculate premium income, cash requirements, and effective cost basis for cash-secured puts.
Retirement planning calculators
Stress test long-term savings, withdrawal, and financial independence assumptions.
Retirement Savings Calculator
Project retirement savings growth with employer match, inflation, and withdrawal assumptions.
FIRE Calculator
Estimate your financial independence number and early retirement timeline.
Which calculator should you use?
Common workflows for stock investors and active traders
Before buying a stock
Start with the Stock Return Calculator to review historical performance, then use the Position Size Calculator to decide how many shares match your risk limit. If the stock pays dividends, estimate income and reinvestment with the Dividend Yield & DRIP Calculator.
Managing trade risk
Use the Stop Loss Calculator to define where the trade thesis fails, then check the share count with the Position Size Calculator. The Break-Even Calculator helps confirm the sell price needed after trading costs.
Building a long-term plan
Compare steady investing with the DCA Calculator, project compounding with the Investment Growth Calculator, and use the Rule of 72 Calculator for quick doubling-time checks. Retirement assumptions can be stress tested with the Retirement Savings Calculator and FIRE Calculator.
Evaluating options income
For covered calls, calculate premium income, breakeven, and assignment outcomes with the Covered Call Calculator. For cash-secured puts, use the Cash-Secured Put Calculator to compare cash required, annualized return, and effective purchase price if assigned.
How these calculators work
Transparent formulas, local calculations, and clear limits
Most Stock Titan financial calculators run directly in your browser, so the values you enter are not stored as a portfolio or account. The stock return and historical data tools may send the symbol and selected dates to the server so they can retrieve historical market data. Each calculator is designed to show the practical output investors usually need, such as cost basis, total return, CAGR, annualized options yield, breakeven price, stop level, or required contribution.
Calculator results are estimates. Taxes, broker execution rules, options assignment, dividend changes, split processing, and market prices can differ from simplified assumptions. Use these tools to check scenarios before researching the underlying security, reading current news, reviewing SEC filings, or confirming final numbers with your broker or advisor.