All Stock & Investment Calculators

Professional tools for calculating stock profits, returns, portfolio performance, and more

Basic Calculations

Calculate profits, losses, and returns on stock trades

Calculate your average cost per share with dollar-cost averaging

Find the price needed to break even on your investment

Calculate compound growth with regular contributions

Calculate simple interest on loans and investments

Calculate compound annual growth rate for investments

Estimate how long it takes your investment to double

Calculate total returns including price gains and dividends

Model dividend reinvestment strategy and compound dividend growth

Adjust shares and cost basis after stock splits

Determine optimal position size based on risk management

Calculate capital gains tax on stock profits and investment sales

Visit our help center for guides, formulas, and detailed explanations