How much ethanol on a shot by grams?

How many grams of ethanol are in a standard shot?

A “shot” is commonly treated as about 1.5 fluid ounces (44 mL) in the US. Ethanol grams depend on the drink’s alcohol by volume (ABV).

To convert, use:
- Ethanol volume (mL) = shot volume (mL) × ABV
- Ethanol mass (grams) = ethanol volume (mL) × 0.789 g/mL (density of ethanol)

For a typical 1.5 oz (44 mL) shot:
- 40% ABV (80 proof): 44 × 0.40 = 17.6 mL ethanol → 17.6 × 0.789 ≈ 13.9 g ethanol
- 30% ABV: 44 × 0.30 = 13.2 mL ethanol → 13.2 × 0.789 ≈ 10.4 g ethanol
- 50% ABV (100 proof): 44 × 0.50 = 22.0 mL ethanol → 22.0 × 0.789 ≈ 17.4 g ethanol

Quick formula you can reuse for any shot

If your shot is V mL and the drink is A% ABV:
- grams ethanol = V × (A/100) × 0.789

If your “shot” is a different size

If you meant 1 oz (29.6 mL) instead of 1.5 oz (44 mL):
- 40% ABV: 29.6 × 0.40 × 0.789 ≈ 9.3 g ethanol

If you tell me the shot size (mL or oz) and the ABV (proof or %), I can calculate the exact grams.