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Market Cap Calculator

Calculate any company's market capitalization from its share price and shares outstanding, or figure out the price change needed to reach a target valuation.

Calculate Market Cap

Enter share price and shares outstanding to compute market capitalization.

Market Cap:—

Price Target Calculator

Find the percentage change needed to go from one market cap to another.

Change Needed:—

How to Calculate Market Capitalization

Market capitalization is calculated by multiplying a company's current share price by its total number of shares outstanding. The formula is simple: Market Cap = Share Price × Shares Outstanding. For example, a company trading at $150 per share with 10 billion shares outstanding has a market cap of $1.5 trillion.

Shares outstanding can be found in a company's quarterly filings (10-Q or 10-K) or on financial data providers. Our calculator takes shares in billions for convenience — if a company has 15.5 billion shares, enter 15.5.

Why Market Cap Matters

Market cap is the primary metric investors use to gauge a company's size and compare it to peers. It determines a company's weighting in major indices, its classification as large-cap or mega-cap, and often influences institutional investment decisions. Use the price target calculator above to model what share price a company would need to reach a specific valuation milestone — like joining the trillion-dollar club.