Updated August 2026.
A fifth of whiskey is a 750 milliliter bottle, about 17 US shots of 1.5 fluid ounces (44 mL). Exact math is 16.9. US whiskey must be at least 40% ABV. At 80 proof those 17 pours are about 17 standard drinks. Bonded whiskey (100 proof) is the same 17 shots with more alcohol each.
The bottle is the same fifth as vodka or gin. Only the ABV on the label changes the dose. For the name, see how much a fifth of alcohol is.
Whiskey fifth: volume shots vs alcohol
| Pour | Size | Shots per 750 mL | Std drinks per shot at 80 proof | Std drinks in the fifth (80 proof) |
|---|---|---|---|---|
| US shot / jigger | 1.5 oz (44 mL) | 16.9 (~17) | 1.0 | 17 |
| Pony | 1.0 oz | 25.4 | 0.67 | 17 |
| Double / rocks | 2.0 oz | 12.7 | 1.33 | 17 |
| UK single | 25 mL | 30 | 0.56 | 17 |
| UK large / Irish pub | 35–35.5 mL | ~21 | ~0.8 | 17 |
| Bottled-in-bond shot | 1.5 oz at 50% ABV | 16.9 | 1.25 | ~21 |
| Cask-strength example | 1.5 oz at 60% ABV | 16.9 | 1.50 | ~25.5 |
The last two columns are the point people miss. The fifth always holds the same milliliters. A barrel-proof pour is a larger standard-drink count in the same glass. Read the proof line. TTB requires it. US whiskey identity is at least 40% ABV (27 CFR 5.143) — 80 proof is the floor, not a promise every bottle stops there.
Handle, pint, mini — same whiskey, different count
| Bottle | Volume | 1.5 oz shots | Std drinks at 80 proof |
|---|---|---|---|
| Mini | 50 mL | 1.1 | 1.1 |
| Pint | 375 mL | 8.5 | 8.5 |
| Fifth | 750 mL | 16.9 (~17) | 17 |
| Liter | 1 L | 22.5 | 22.5 |
| Handle | 1.75 L | 39.5 | 39.5 |
Those sizes are TTB standards of fill (27 CFR 5.203), updated January 2025 without dropping the fifth or the handle. A “fifth of whiskey” in a recipe means 750 mL, not 1.75 L.
Neat, rocks, and cocktails
A bar’s whiskey is often a 2-ounce rocks pour, not a 1.5-ounce shot. If that is how you drink at home, a fifth is about 12 pours, not 17. A 2–2.5 ounce Old Fashioned or Manhattan build yields about 10–12 cocktails from the same bottle. A 1-ounce neat pour (common for cask strength so the guest can add water) stretches the fifth to 25 glasses of liquid and still dumps the same ethanol. Ice does not delete proof.
Bottled-in-bond whiskey is 100 proof by definition (50% ABV). Seventeen 1.5-ounce bond shots are about 21 standard drinks. That is why a “short” bond pour can still outrun a generous 80-proof pour. For mixed drinks using the same bottle, bar shots often start with a full jigger of whiskey. Pour size itself is on how many mL is a shot and shots in any 750 mL bottle.
Utah and the free-pour
Utah caps primary liquor at 1.5 ounces through a metered gun (Utah Code § 32B-5-304). In other states a whiskey “shot” might be a short 1 ounce or a heavy 2 ounces. If you are costing a bottle for a party, measure.
This is inventory math
Seventeen shots in the bottle is useful for a home bar and useless as a drinking itinerary. Four to five standard drinks in two hours is NIAAA’s binge-drinking pattern, not a tasting flight. Ten guests, two whiskey shots each, 80 proof: you need 20 shots — more than one fifth and less than two. Buy two fifths or one handle. Leftover whiskey, capped, lives for years. The fifth is a unit of purchase, not a unit of consumption.
Sources
- 27 CFR 5.203: 750 mL authorized distilled-spirits fill (T.D. TTB-200).
- 27 CFR 5.143: US whiskey not less than 40% ABV.
- 1.5 US fl oz = 44.36 mL; 750 / 44.36 ≈ 16.9 shots.
- NIAAA / CDC: 1.5 oz of 40% spirits = 1 standard drink (14 g alcohol).
- Utah Code § 32B-5-304 (1.5 oz primary spirituous liquor).