Tools · Calculator
Market cap calculator
Multiply a share price you enter by shares outstanding, or load the cover-page share count for a covered company from its 10-K.
An illustration, not a valuation. This calculator multiplies a price you enter by a share count. It doesn't say whether any price is high, low or fair, and it doesn't predict anything.
The formula
Market cap = share price × shares outstanding
A worked example: Apple's share count
Apple's 10-K cover page reports 14.53B shares outstanding as of Oct 23, 2026. At a share price of $100, a round figure used only to show the arithmetic, not a quoted price, that count would be a market cap of about $1.45T. Every $1 of share price adds about $14.5B.
Source: Apple 10-K for fiscal 2026, filed Nov 3, 2026
Market cap and enterprise value
Market cap and enterprise value covers which share count to use and what changes when you add debt and take out cash. The enterprise value calculator does that arithmetic, including a simple EV/EBITDA.
Common questions
How do you calculate market cap?
Multiply the share price by the number of shares outstanding. Apple's 10-K cover page reports 14.53B shares as of Oct 23, 2026, so each $1 of share price adds about $14.5B to the market cap. Source: Apple 10-K for fiscal 2026.
Which share count should I use?
The shares outstanding on the cover of the latest 10-K or 10-Q, as of a recent date. That is the count for market cap. The weighted average diluted shares on the income statement are the count for earnings per share, and they can differ.
Why doesn't Ticker Sage show market caps?
Market cap depends on the share price, which changes whenever the market is open. Ticker Sage only publishes figures from filings, so it shows the share count and lets you multiply by a price you check yourself.
What does 'added by each $1 of price' mean?
It is just the share count in dollars: the amount market cap rises or falls when the share price moves by $1. For Apple, with 14.53B shares, that amount is about $14.5B.
Is market cap the same as enterprise value?
No. Market cap is the value of the shares at the current price. Enterprise value adds debt and subtracts cash. The enterprise value calculator does that next.
Disclosures
- Editor holdings
- The editor holds shares of Tesla (TSLA) and SpaceX in a long-term retirement account. The editor holds no position in any other company named on this page. As of Nov 11, 2026.
- Compensation
- Nobody paid for this calculator. No affiliate links on this calculator.
- Sources
- Each company's own SEC filings, linked next to each number.
- Last updated
- Nov 10, 2026
General education, the same for every reader. Not a recommendation to buy, sell or hold any security, and it doesn't consider your situation.
More in Learn and Tools · Methodology & Disclosures explains where every number comes from.