A standard shot in the U.S. is generally considered to be 1.5 fluid ounces (44 milliliters), though this can vary depending on the state, bar, and local customs, ranging from about 1 to 2 ounces. Some bars may serve a slightly smaller shot around 1.25 ounces, while others may serve up to 2 ounces for a "double" or larger pour. Globally, shot sizes vary widely by country, with common sizes ranging from 25ml (0.85 oz) to 50ml (1.69 oz) depending on local traditions and regulations.