A standard U.S. shot is 1.5 fluid ounces (44 ml), and you can measure that surprisingly well with items already in your kitchen. Whether you’re making cocktails at a friend’s place or your shot glass is buried in a moving box, here are several reliable ways to get the pour right.
Use Measuring Spoons
This is the most accurate substitute. One tablespoon holds about 15 ml, so three tablespoons equal 1.5 ounces, which is exactly one standard shot. If you only have teaspoons, you’ll need nine of them. That sounds tedious, but it works perfectly for a single cocktail recipe where precision matters.
A dessert spoon, the mid-sized one in many flatware sets, holds roughly 10 ml. Four and a half dessert spoons get you to a shot, though at that point you’re better off reaching for a tablespoon if one is available.
Use a Liquid Measuring Cup
Most kitchen measuring cups have markings in ounces along one side. Pour your spirit to the 1.5 oz line and you’re done. Even a small 1-cup Pyrex measuring cup works well for this. The key is to read the measurement at eye level, with the cup on a flat surface, looking at the bottom of the liquid’s curve (the meniscus) rather than the edges creeping up the glass.
Try the Free Pour Counting Method
Bartenders pour without measuring tools all night long using a simple counting technique. The standard method: each count of “one one-thousand” equals roughly half an ounce when liquid flows through a pour spout. So for a 1.5-ounce shot, you count to three.
Pick up the bottle, tip it fully inverted so the liquid flows at a steady rate, and count “one one-thousand, two one-thousand, three one-thousand.” Then stop. This works best with a pour spout (the tapered metal or plastic insert that fits into the bottle’s neck). Without a pour spout, the flow rate is less predictable because the liquid glugs out unevenly as air enters the bottle. If you’re pouring straight from the bottle, slow your count slightly and practice a few times with water into a measuring cup until you calibrate your rhythm.
Weigh It on a Kitchen Scale
A digital kitchen scale gives you a precise pour every time. Place your glass on the scale, zero it out, and pour. Spirits are slightly lighter than water because alcohol is less dense, so 1.5 fluid ounces of 80-proof liquor weighs about 42 grams rather than the 44 grams you’d get with pure water. In practice, aiming for 42 to 44 grams on the scale gets you close enough for any cocktail recipe. This method is especially useful if you’re batching drinks for a group and want consistency across multiple pours.
Use a Medicine Cup
The small plastic dosing cups that come with liquid cold medicine are marked in milliliters, teaspoons, and sometimes ounces. Most hold 30 ml (1 oz), so you’d fill it once, pour it into your glass, then add another half-cup to reach 1.5 ounces (44 ml). Give it a quick wash first. These cups are designed for precise small-volume measurement, which makes them one of the better improvised options.
Eyeball It in a Standard Glass
If you have no tools at all, you can estimate visually using a rocks glass or a small tumbler. Pour the spirit to a depth of roughly one finger’s width at the bottom of a standard rocks glass. This is a rough method, and “one finger” can vary depending on the diameter of the glass, but it typically lands in the 1 to 1.5 ounce range. For a wider glass, you’ll need more depth; for a narrow glass, less. It’s the least precise option on this list, but it gets you in the neighborhood.
What a Bottle Cap Can (and Can’t) Do
You’ll sometimes see advice to use a bottle cap as a tiny measuring cup. A standard plastic water bottle cap holds about 5 ml, which means you’d need nearly nine capfuls to reach a shot. That’s messy and slow. A larger cap from a sports drink bottle holds closer to 10 to 15 ml, cutting the count down, but it’s still impractical. Bottle caps are better as a last resort than a go-to method.
Why the Amount Matters
Getting close to 1.5 ounces isn’t just about making a balanced cocktail. That volume of 80-proof spirits (40% alcohol by volume) contains about 14 grams of pure alcohol, which is the definition of one standard drink in the United States. Knowing how much you’re actually pouring helps you keep track of your intake, especially when free pouring tends to run generous. Studies on self-poured drinks consistently show that people overpour when estimating, sometimes by 20 to 30 percent. Whichever method you choose, measuring even roughly keeps you closer to what you intended.