What's the weight of a typical alcohol shot?

How much does a standard alcohol shot weigh?

A typical “shot” of liquor is usually about 1.5 fluid ounces (44 mL). The weight depends on the alcohol’s density, but for most common spirits you can estimate it at roughly 1.5–1.6 ounces by weight (about 43–45 grams).

Why the weight changes between vodka, whiskey, tequila, etc.

Spirits have different densities depending on alcohol content and additives. Higher-proof drinks (more alcohol per volume) tend to weigh slightly differently than lower-proof ones, so the same 1.5 fl oz pour can end up with a slightly different gram weight.

Quick reference: grams for common shot sizes

• 1.0 fl oz (25–30 mL) shot: about 28–30 g
  
• 1.5 fl oz (44 mL) “standard” shot: about 43–45 g
  
• 2.0 fl oz (59 mL) shot: about 57–60 g
  
  If you tell me the shot size (e.g., 1 oz, 1.5 oz, 2 oz) and the specific drink or proof, I can narrow the estimate.