How Many Ounces In One Shot Glass: in most US bar recipes, one shot glass holds 1.5 fluid ounces. That equals 3 tablespoons, since 1 fluid ounce is 2 tablespoons and 1 tablespoon is 15 ml.
A shot is a volume measure, not a weight ounce. So 1.5 fl oz is about 45 ml, but it does not weigh 1.5 ounces unless the liquid’s density matches that amount. Some small shot glasses hold 1 fl oz, so check the marking if precision matters.
1 shot glass is typically 1.5 fluid ounces in the U.S., equal to 3 tablespoons or about 45 ml. Shot glasses vary, so check the marking if an exact pour matters for a recipe or drink.
Straight To The Numbers
A U.S. shot glass is usually used for a 1.5-fluid-ounce pour. In kitchen measures, that is 3 tablespoons, or about 45 ml, because 1 fluid ounce equals 2 tablespoons and 30 ml.
If your shot glass is marked “1 oz,” it holds 1 fluid ounce, not the usual 1.5-ounce bar pour. That smaller glass equals 2 tablespoons, or 30 ml.
| Measure | US equivalent | Metric |
|---|---|---|
| 1 teaspoon | – | 5 ml |
| 1 tablespoon | 3 teaspoons | 15 ml |
| 1 fluid ounce | 2 tablespoons | 30 ml |
| 1/4 cup | 4 tablespoons | 59 ml |
Fast Shot Glass Conversions
1 standard U.S. shot: 1.5 fluid ounces = 3 tablespoons = 45 ml. This is the number most recipes mean when they call for “a shot” of liquor, espresso syrup, or another liquid.
1 small shot glass: 1 fluid ounce = 2 tablespoons = 30 ml. Use this if the glass has a 1 oz line, or if you measured it and it fills with exactly 2 tablespoons.
2 standard shots: 3 fluid ounces = 6 tablespoons = 90 ml. That comes from doubling 1.5 fluid ounces, 3 tablespoons, and 45 ml.
Half of a standard shot: 0.75 fluid ounce = 1.5 tablespoons = about 22.5 ml. This is useful when scaling a cocktail, glaze, or sauce down by half.
One tablespoon is not a shot. It is only 15 ml. Since a standard shot is 3 tablespoons, 1 tablespoon is one-third of that pour.
One fluid ounce is also not the same as a standard shot. It is 2 tablespoons, or 30 ml. A standard 1.5-ounce shot is 50% larger than a 1-ounce pour.
A 1/4 cup measure is 4 tablespoons, or 59 ml. That is bigger than a standard shot, which is 3 tablespoons. So 1/4 cup is about 1 tablespoon more than a 1.5-ounce shot.
For recipes, the safest practical move is to measure the glass once. Fill it with water, pour into a tablespoon measure, and count. 2 tablespoons means 1 fluid ounce; 3 tablespoons means a 1.5-ounce shot.
If a recipe says “1 shot” but gives no size, use 1.5 fluid ounces for a U.S.-style pour. If precision matters, write it as 3 tablespoons or 45 ml so the amount is repeatable.
Standard Shot Glass Ounces
A standard U.S. shot is usually 1.5 fluid ounces. Using the kitchen conversion 1 fluid ounce = 2 tablespoons = 30 ml, one standard shot equals 3 tablespoons, or about 45 ml.
The glass itself may not equal the pour. Many shot glasses hold 1.5 fluid ounces to the rim, but some hold 1 fluid ounce, 2 fluid ounces, or more. For measuring, the liquid amount matters more than the glass shape.
Quick Shot Glass Conversion Table
| Shot amount | Tablespoons | Milliliters | Cups |
|---|---|---|---|
| 1 fluid ounce | 2 tablespoons | 30 ml | 1/8 cup |
| 1.5 fluid ounces | 3 tablespoons | 45 ml | 3/16 cup |
| 2 fluid ounces | 4 tablespoons | 59 ml | 1/4 cup |
For recipes, measure a shot as 3 tablespoons unless the recipe says otherwise. That is the clearest U.S. kitchen equivalent for a 1.5-fluid-ounce pour.
Worked example: if a cocktail calls for 2 shots of liquor, use 3 fluid ounces total. That equals 6 tablespoons, because each fluid ounce is 2 tablespoons.
Another example: 4 standard shots equal 6 fluid ounces. Since 1 cup is 8 fluid ounces, 4 shots equal 3/4 cup.
If your shot glass is marked 1 ounce, it is a smaller pour. Two of those glasses equal 2 fluid ounces, or 1/4 cup. Three of them equal a standard 3-fluid-ounce double pour.
Single Shot, Double Shot, and Jigger Amounts
A single standard shot is 1.5 fluid ounces. A double shot is commonly 3 fluid ounces, which equals 6 tablespoons or 90 ml.
A 2-fluid-ounce pour is larger than a standard shot but smaller than a 3-fluid-ounce double. In kitchen terms, 2 fluid ounces equals 1/4 cup.
A bar jigger often has two measuring sides. If one side is 1.5 fluid ounces and the other is 1 fluid ounce, the larger side is the standard U.S. shot measure.
Edge case: if a recipe says “1 shot” but gives no ounce amount, use 1.5 fluid ounces for U.S. recipes. If precision matters, measure 3 tablespoons rather than filling an unmarked glass.
Edge case: a tall, narrow shot glass may look larger than a short, wide one. Do not assume capacity by appearance. Fill it with tablespoons once: 3 tablespoons means it holds 1.5 fluid ounces.
For batching, multiply by 1.5 fluid ounces per shot. Six standard shots equal 9 fluid ounces. That is 18 tablespoons, or 270 ml.
For a half-shot, use 0.75 fluid ounce. In kitchen spoons, that is 1 tablespoon plus 1 1/2 teaspoons, because 1 tablespoon is 3 teaspoons.
Bottom line: one standard shot glass pour in the U.S. is 1.5 fluid ounces, equal to 3 tablespoons or about 45 ml.
US Versus International Shots
A US “shot” is usually 1.5 fluid ounces. Using kitchen measures, that equals 3 tablespoons, because 1 fluid ounce is 2 tablespoons.
In metric terms, 1.5 US fluid ounces is about 45 ml, using 1 fluid ounce = 30 ml. That is the practical answer for most US cocktail recipes.
Common Shot Sizes By Country
| Place | Common shot size | Kitchen equivalent |
|---|---|---|
| United States | 1.5 fl oz | 3 tbsp, about 45 ml |
| Small US pour | 1 fl oz | 2 tbsp, 30 ml |
| Large US double | 3 fl oz | 6 tbsp, 90 ml |
| United Kingdom single | 25 ml | Just under 1 fl oz |
| United Kingdom large single | 35 ml | Just over 1 fl oz |
| Australia | 30 ml | 1 fl oz, 2 tbsp |
| Japan | 30 ml | 1 fl oz, 2 tbsp |
The key difference is that the US shot is often larger than a 25 ml or 30 ml international pour. A US 1.5-ounce shot is 50% larger than a 1-ounce shot.
Worked example: a cocktail calling for 2 US shots uses 3 fluid ounces total. That is 6 tablespoons, or about 90 ml.
If a UK recipe calls for two 25 ml shots, the total is 50 ml. That is more than 1.5 US fluid ounces but less than 2 US fluid ounces.
If an Australian recipe calls for two 30 ml shots, the total is 60 ml. That equals 2 US fluid ounces, or 4 tablespoons.
Why Your Shot Glass May Not Match The Recipe
Many shot glasses hold more than the pour line suggests. A glass sold as a “shot glass” may physically hold 2 fluid ounces, while the recipe’s shot is only 1.5 fluid ounces.
For accuracy, measure the glass once with tablespoons. If it takes 3 tablespoons to reach the rim, it is a 1.5-ounce shot glass.
If it takes 2 tablespoons, it is a 1-ounce shot glass. If it takes 4 tablespoons, it holds 2 fluid ounces, or 1/4 cup.
Edge case: a “jigger” is not always one shot. In US bar use, the larger side is often 1.5 fluid ounces, while the smaller side may be 1 fluid ounce.
For cooking, the safest conversion is numeric: 1 US shot = 1.5 fluid ounces = 3 tablespoons = about 45 ml.
For scaling, 4 US shots equal 6 fluid ounces. That is 12 tablespoons, or 3/4 cup.
For a party batch, 8 US shots equal 12 fluid ounces. That is 1 1/2 cups, because 1 cup is 8 fluid ounces.
Single Shot Measurement Steps
A shot glass does not have one fixed ounce size. Measure the glass, then label it by fluid ounces. Use 1 fluid ounce = 2 tablespoons = 30 ml as the base.
Fast way to measure the glass you have
- 1. Start with a dry, level shot glass. Put the empty glass on a flat counter. If the rim is slanted, use the lowest point of the rim as the practical fill line so you do not overcount the capacity.
- 2. Fill with tablespoons first. Add water 1 tablespoon at a time. Each tablespoon is 15 ml. Two tablespoons equal 1 fluid ounce, so counting tablespoons is the fastest home method.
- 3. Convert the tablespoon count to ounces. Divide tablespoons by 2. If the glass holds 2 tablespoons, it is a 1 fluid ounce shot glass. If it holds 3 tablespoons, it is a 1.5 fluid ounce shot glass.
- 4. Check the metric amount. Multiply tablespoons by 15 ml. A 2 tablespoon pour is 30 ml. A 3 tablespoon pour is 45 ml. A 4 tablespoon pour is 60 ml, which is just over 2 fluid ounces using the listed 30 ml per ounce equivalence.
- 5. Use teaspoon testing for the last small gap. If the glass is not full after whole tablespoons, add teaspoons. One teaspoon is 5 ml. Three teaspoons equal 1 tablespoon, so 6 teaspoons equal 1 fluid ounce.
- 6. Mark the real fill line. Once you know the ounce amount, mark the outside with tape at 1 fluid ounce, 1.5 fluid ounces, or 2 fluid ounces. This matters when the glass is wider at the top than at the bottom.
Worked examples
If your glass fills exactly at 2 tablespoons, it holds 1 fluid ounce. That is also 30 ml. This is a small shot measure.
If your glass fills at 3 tablespoons, it holds 1.5 fluid ounces. The metric amount is 45 ml because 3 tablespoons x 15 ml = 45 ml.
If your glass fills at 4 tablespoons, it holds 2 fluid ounces. Since 1/4 cup is 4 tablespoons, that glass also holds 1/4 cup, or 59 ml by the cup conversion table.
If the glass holds 2 tablespoons plus 1 teaspoon, count it as 35 ml: 30 ml from the tablespoons plus 5 ml from the teaspoon. In fluid ounces, it is a little more than 1 ounce.
If the glass holds 2 tablespoons plus 2 teaspoons, count it as 40 ml. That is between a 1 fluid ounce and 1.5 fluid ounce pour.
For cocktail recipes, do not assume every shot glass is the same. A recipe calling for 1 fluid ounce needs 2 tablespoons. A recipe calling for 1.5 fluid ounces needs 3 tablespoons.
Shot Glass Size Chart
One US shot is commonly 1.5 fluid ounces. Using the reference conversion of 1 fluid ounce = 30 ml, a 1.5-ounce shot equals 45 ml.
Shot glasses are not all the same size. A small shot glass may hold 1 fluid ounce, while a double shot glass may hold 2 fluid ounces or more.
| Shot glass amount | Fluid ounces | Tablespoons | Milliliters |
|---|---|---|---|
| Small shot | 1 fl oz | 2 tbsp | 30 ml |
| Standard US shot | 1.5 fl oz | 3 tbsp | 45 ml |
| Large shot | 2 fl oz | 4 tbsp | 60 ml |
| Quarter-cup pour | 2 fl oz | 4 tbsp | 59 ml |
| Half-cup total | 4 fl oz | 8 tbsp | 118 ml |
Fast Answer: Ounces In One Shot Glass
If a recipe says “1 shot” and gives no other detail, use 1.5 fluid ounces as the working US measure.
That equals 3 tablespoons, because 1 fluid ounce equals 2 tablespoons. It also equals about 45 ml, using 30 ml per fluid ounce.
If your shot glass is filled to a 1-ounce line, that is not a standard 1.5-ounce shot. It is 2 tablespoons, or 30 ml.
If your shot glass is filled to a 2-ounce line, that is a double-size pour. It is 4 tablespoons, or 60 ml.
Worked Examples
Example 1: A cocktail calls for 2 shots. At 1.5 fl oz per shot, that is 3 fl oz total.
Since 1 fl oz equals 2 tablespoons, 3 fl oz equals 6 tablespoons. In metric, 3 fl oz equals 90 ml.
Example 2: A sauce calls for 1 shot of vinegar. Measure 3 tablespoons if you do not have a shot glass.
That 3-tablespoon measure equals 1.5 fl oz, or 45 ml.
Example 3: You have a 1/4 cup measuring cup. A full 1/4 cup is 4 tablespoons, or 2 fl oz.
So a full 1/4 cup is larger than a 1.5-ounce shot by 1 tablespoon, or 0.5 fl oz.
Edge Cases To Watch
A decorative shot glass may look standard but hold less or more than 1.5 fl oz. Check by filling it with tablespoons of water.
If it holds 2 tablespoons, it is 1 fl oz. If it holds 3 tablespoons, it is 1.5 fl oz. If it holds 4 tablespoons, it is 2 fl oz.
For cooking, use measuring spoons when accuracy matters. A casual “shot glass” pour can vary by 1 tablespoon or more.
For batch recipes, scale by tablespoons. Four standard shots equal 6 fl oz, 12 tablespoons, or 180 ml.
Eight standard shots equal 12 fl oz, 24 tablespoons, or 360 ml.
Measuring Without a Shot Glass
A standard U.S. shot is usually treated as 1.5 fluid ounces. Without a shot glass, measure it as 3 tablespoons, since 1 fluid ounce equals 2 tablespoons.
In metric terms, 1.5 fluid ounces is about 45 ml. That comes from 1 fluid ounce at 30 ml, so 1.5 × 30 ml = 45 ml.
Fast Substitutions for 1 Shot
| Amount Needed | Use This | Metric |
|---|---|---|
| 1 shot | 3 tablespoons | 45 ml |
| 1/2 shot | 1 tablespoon + 1 1/2 teaspoons | 22.5 ml |
| 2 shots | 6 tablespoons | 90 ml |
| 4 shots | 3/4 cup | About 177 ml |
If you have measuring spoons, the cleanest method is 3 level tablespoons. Fill each tablespoon to the rim, not rounded, and pour into the mixing glass or shaker.
If you only have a teaspoon, use 9 teaspoons for 1 shot. This works because 1 tablespoon equals 3 teaspoons, and 3 tablespoons equals 9 teaspoons.
For a half shot, measure 1 tablespoon plus 1 1/2 teaspoons. That equals 1.5 tablespoons, or 0.75 fluid ounce.
For a double shot, use 6 tablespoons. In ounces, that is 3 fluid ounces. In metric, it is about 90 ml.
Using a Liquid Measuring Cup
A full 1/4 cup is 4 tablespoons, which is 2 fluid ounces. So a 1.5-ounce shot is not a full 1/4 cup.
To measure 1 shot with a 1/4-cup measure, fill it 3/4 of the way. Since 1/4 cup is 4 tablespoons, 3/4 of that is 3 tablespoons.
For 2 shots, measure 3 fluid ounces. That is 6 tablespoons, or 3/8 cup. If your cup has ounce marks, stop at the 3 fl oz line.
For 4 shots, measure 6 fluid ounces. That equals 12 tablespoons, or 3/4 cup. This is useful for batching cocktails for 4 drinks.
Worked Cocktail Examples
If a recipe calls for 2 ounces of liquor, measure 4 tablespoons. That is larger than a 1.5-ounce shot by 1 tablespoon.
If a recipe calls for 1 ounce, measure 2 tablespoons. That is a smaller pour than a standard 1.5-ounce shot by 1 tablespoon.
If a drink needs 1.5 ounces liquor and 0.5 ounce syrup, use 3 tablespoons liquor and 1 tablespoon syrup. Total liquid added is 4 tablespoons, or 2 fluid ounces.
If making 6 drinks with 1 shot each, measure 18 tablespoons total. That is 9 fluid ounces, because every 2 tablespoons equals 1 fluid ounce.
Edge Cases
Some shot glasses hold 1 fluid ounce, not 1.5. If your recipe says “1 shot” but gives no ounces, check the context: bar recipes often mean 1.5 fluid ounces in the U.S.
A jigger may have two sides. Common measuring logic is to verify the markings, because the large side may be 1.5 ounces and the small side may be 1 ounce.
Do not use a coffee mug, rocks glass, or free pour for precision. A 1-tablespoon error changes a 1.5-ounce shot by one-third.
For the best no-shot-glass setup, use tablespoons for single drinks and a liquid measuring cup for batches. Use the rim line, keep the measure level, and count aloud.
Fluid Ounces Versus Weight Ounces
A shot glass is measured in fluid ounces, not weight ounces. In the US, 1 fluid ounce is a volume equal to 1/128 of a US gallon, or about 29.5735 milliliters.
A weight ounce measures mass. In US kitchen use, 1 avoirdupois ounce equals 28.3495 grams. It does not tell you how much space a liquid takes up.
Why a 1.5 fl oz Shot Does Not Weigh 1.5 oz
The standard US shot is commonly 1.5 fluid ounces. That volume equals about 44.36 milliliters, because 1.5 × 29.5735 = 44.36025.
If the liquid is water, 44.36 milliliters weighs about 44.36 grams at typical kitchen accuracy. Converted to ounces by weight, that is about 1.56 oz, since 44.36 ÷ 28.3495 = 1.56.
Alcohol is lighter than water. Pure ethanol has a density near 0.789 g/mL at 20°C, so 44.36 mL of pure ethanol weighs about 35.0 g, or about 1.24 oz by weight.
A typical 80-proof spirit is 40% alcohol by volume, with water and other components making up most of the rest. Its weight per 1.5 fl oz is therefore not the same as either water or pure ethanol.
Worked Pour Examples
Example 1: a recipe calling for 2 fl oz of whiskey needs volume. Use a 1 oz pour twice, or fill a 1.5 oz jigger plus another 0.5 oz.
Example 2: a scale reading of 2 oz does not prove you poured 2 fl oz. For water, 2 oz by weight is about 59.15 mL, or about 2.00 fl oz. For liquor, it will be more volume.
For cocktails, read “oz” as fluid ounces unless the recipe clearly says “by weight,” “wt oz,” or gives grams. Shot glasses, jiggers, and measuring cups are volume tools.
Jigger Measurements For Shots
A standard U.S. jigger holds 1.5 fluid ounces on the large side. That equals 3 tablespoons, 44.36 milliliters, or one common “shot” used in many cocktail recipes.
The smaller side of a double-sided jigger is often 0.75 fluid ounce. That is 1.5 tablespoons, 22.18 milliliters, or exactly half of a 1.5-ounce shot.
Common Jigger Sizes
Use these measurements when a recipe lists a shot, half shot, or double shot. Check the markings on your own jigger, because bar tools are not all the same size.
1 full U.S. jigger = 1.5 fl oz = 3 tbsp = 44.36 ml.
1 half jigger = 0.75 fl oz = 1.5 tbsp = 22.18 ml.
1 pony shot = 1 fl oz = 2 tbsp = 29.57 ml.
1 double shot, when based on a 1.5-ounce shot, = 3 fl oz = 6 tbsp = 88.72 ml.
Worked Examples
If a margarita recipe calls for 2 ounces of tequila, a 1.5-ounce jigger is not enough. Fill the large side once, then add 0.5 ounce more.
If your jigger has a 0.75-ounce small side, 0.5 ounce is two-thirds of that small side. For better accuracy, use etched 0.5-ounce markings if your jigger has them.
If an old fashioned calls for 2 ounces of whiskey, use one 1.5-ounce jigger plus one 0.5-ounce pour. That gives exactly 2 fluid ounces.
If a recipe calls for 3 ounces of vodka, pour two full 1.5-ounce jiggers. That equals 3 fluid ounces, or 6 tablespoons.
For a 0.75-ounce liqueur pour, use the small side of a 1.5-ounce/0.75-ounce jigger once. For 1.5 ounces, fill that small side twice.
Common Pouring Mistakes To Avoid
Using “one shot” as a fixed amount is the biggest mistake. In many U.S. recipes, 1 shot means 1.5 fl oz, but shot glasses are commonly sold in 1 fl oz, 1.5 fl oz, and 2 fl oz sizes.
Assuming The Glass Is A Measuring Tool
A shot glass may look full before it reaches its marked capacity, or it may hold more than expected. If your glass holds 2 fl oz and the recipe expects 1.5 fl oz, each “shot” adds an extra 0.5 fl oz.
Worked example: 4 drinks × 0.5 fl oz extra = 2 fl oz more liquor total. That is the same as adding 1⅓ standard 1.5 fl oz pours across the batch.
Filling To The Rim
Pouring to the rim is messy and inaccurate. A 1.5 fl oz shot glass filled slightly above its intended line can easily change the drink balance, especially in cocktails with only 0.5 fl oz of syrup or citrus.
Use a jigger when accuracy matters. A common double jigger has 1 fl oz on one side and 1.5 fl oz on the other, letting you measure a standard shot without guessing.
Confusing Fluid Ounces And Weight Ounces
For cocktails, ounces usually mean fluid ounces, a volume measure. Do not use a kitchen scale unless the recipe gives weights. 1.5 fl oz of liquor is not the same as 1.5 oz by weight.
Batching magnifies small errors. If you overpour by just 0.25 fl oz per drink, 8 drinks will contain 2 fl oz extra liquor. That can make the batch stronger than planned.
To check your shot glass, fill it with water, then pour the water into a liquid measuring cup with ounce marks. If it reaches 1.5 fl oz, it matches the standard U.S. pour.
Reader Questions
How many ounces are in one shot glass?
In the U.S., a standard shot glass usually holds 1.5 fluid ounces. That equals 3 tablespoons, since 1 fluid ounce is 2 tablespoons. Some shot glasses hold 1 ounce or 2 ounces, so check the marked line if accuracy matters.
How many tablespoons are in a shot glass?
A 1.5-fluid-ounce shot equals 3 tablespoons. The conversion is direct: 1 fluid ounce equals 2 tablespoons, so 1.5 fluid ounces equals 3 tablespoons. A 1-ounce shot equals 2 tablespoons, and a 2-ounce shot equals 4 tablespoons.
How many milliliters are in a shot glass?
A standard 1.5-fluid-ounce U.S. shot is about 45 ml, using 1 fluid ounce as 30 ml. A 1-ounce shot is 30 ml, and a 2-ounce shot is 60 ml. Many shot glasses are not filled to the rim.
How many shots are in a cup?
One U.S. cup is 8 fluid ounces. If each shot is 1.5 fluid ounces, 1 cup holds about 5.3 shots. If using 1-ounce shot glasses, 1 cup holds 8 shots. For 2-ounce shots, 1 cup holds 4 shots.
What is a standard shot size in the United States?
In the United States, a standard shot is commonly 1.5 fluid ounces. However, shot glasses are not all the same size, and some hold 1 ounce, 1.25 ounces, or 2 ounces. For recipes or cocktails, measure with a jigger for accuracy.
