As of December 2025 British American Tobacco has a market cap of โน11.407 Trillion. This makes British American Tobacco the world's 158th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 9th, 2025 the market cap of British American Tobacco was reported to be: