A standard shot in the United States typically measures 1.5 fluid ounces (44 milliliters). In some European countries, the size of a shot can be approximately 1 ounce (or less). However, it's important to note that these measurements can vary by location and establishment; some bars may serve larger shots depending on local regulations or their own serving practices.

For more detailed information, you can check the following links:

• The Mixer
• Legends Recovery Center
• Wine Enthusiast

In summary, while 1.5 ounces is the commonly accepted measure for a shot in the U.S., variations exist, so it's always good to check with the specific bar or restaurant for their serving sizes.

Sources

I feel stupid even asking this... but how many oz in a shot? - RedditHow Many Ounces in a Shot? Learn Shot Sizes & More - The MixerHow Many Oz in a Shot? Understanding Your Limit - Tinto AmorioHow Many Ounces Are in a Shot Glass? It Varies - Wine EnthusiastHow Many Ounces in a Shot of Liquor? - Legends Recovery CenterShot glass - WikipediaHow Many Ounces in a Shot Glass? - WebstaurantStore

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