1 shot glass is typically 1.5 fluid ounces, equal to 3 tablespoons or about 45 ml. Some bars use 1 fluid ounce or 2 fluid ounces, but 1.5 fl oz is the common US pour.
How Many Oz In A Shot Glass is 1.5 fluid ounces for a standard U.S. bar shot. That equals 3 tablespoons, since 1 fluid ounce equals 2 tablespoons.
Not every small glass marked “shot” holds the same amount, so measure yours if accuracy matters. A 1-ounce shot is 2 tablespoons, while a 1.5-ounce shot is 3 tablespoons, or about 45 ml using 1 tablespoon = 15 ml.
The Short Answer, With Numbers
A shot glass is measured in fluid ounces, not dry ounces. The key conversion is simple: 1 fluid ounce = 2 tablespoons = 30 ml.
So if your shot glass is marked 1 oz, it holds 2 tablespoons or about 30 ml.
A common larger pour is 1 1/2 fl oz. Using the same conversion, that equals 3 tablespoons or about 45 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 |
| 1/2 cup | 8 tablespoons | 118 ml |
| 1 cup | 16 tbsp / 8 fl oz | 237 ml |
Fast Shot Glass Conversions
1 fl oz shot glass: 1 fluid ounce, 2 tablespoons, 6 teaspoons, about 30 ml.
1 1/2 fl oz shot: 1.5 fluid ounces, 3 tablespoons, 9 teaspoons, about 45 ml.
2 fl oz shot glass: 2 fluid ounces, 4 tablespoons, 12 teaspoons, about 60 ml.
1/2 fl oz pour: 1 tablespoon, 3 teaspoons, about 15 ml.
If a recipe says “1 shot” but gives no ounces, check the glass. A small shot glass may be 1 fl oz, while a larger bar pour may be 1 1/2 fl oz or 2 fl oz.
For cooking, the safest numeric move is to measure by tablespoons or fluid ounces instead of guessing from the glass shape.
Worked Examples
If a sauce calls for 2 fl oz of bourbon, measure 4 tablespoons. That is the same as 1/4 cup because 1/4 cup equals 4 tablespoons.
If a cocktail needs 3 fl oz total liquor, that is 6 tablespoons. It is also halfway between 1/4 cup and 1/2 cup.
If you only have a tablespoon, count carefully: 1 fl oz = 2 tablespoons, so 1 1/2 fl oz = 3 tablespoons.
If you only have teaspoons, use the tablespoon conversion: 1 tablespoon = 3 teaspoons. Therefore, 1 fl oz = 6 teaspoons.
If your shot glass is filled to a line rather than the rim, measure that line once with water. Pour it into tablespoons to learn whether the line is 1 fl oz, 1 1/2 fl oz, or 2 fl oz.
Do not confuse fluid ounces with ounces by weight. A shot glass measures volume. The ounce weight conversion, 1 ounce = 28.3 g, is for weight, not drink volume.
Standard Shot Glass Ounces
A standard U.S. shot glass holds 1.5 fluid ounces. Using kitchen measures, that equals 3 tablespoons or about 45 ml, since 1 fluid ounce equals 2 tablespoons or 30 ml.
The key point: “shot glass” describes the vessel, but “shot” describes the pour. In most U.S. bar and recipe use, a standard shot means 1.5 fl oz, not 1 fl oz.
Standard Shot Conversion
| Shot Amount | Tablespoons | Milliliters |
|---|---|---|
| 1 standard shot | 3 tbsp | 45 ml |
| 1 small shot | 2 tbsp | 30 ml |
| 2 standard shots | 6 tbsp | 90 ml |
| 4 standard shots | 12 tbsp | 180 ml |
Worked example: if a cocktail calls for 1 shot of liquor and you are measuring with spoons, use 3 tablespoons. That is 1.5 fl oz because each tablespoon is 0.5 fl oz.
Another example: if a recipe calls for 2 shots, measure 6 tablespoons. In fluid ounces, that is 3 fl oz. In metric volume, it is about 90 ml.
If your shot glass is marked at 1 fl oz, it is a smaller pour. One fluid ounce equals 2 tablespoons or 30 ml. Filling that glass once is not the same as a standard 1.5 fl oz shot.
Common Shot Glass Edge Cases
A 2 fl oz shot glass is oversized for a standard U.S. shot. If filled to the rim, it holds 4 tablespoons or 60 ml, which is one-third more than a 1.5 fl oz standard shot.
A 1 fl oz line on a larger glass is useful for half-measuring. To reach a standard shot, pour to 1 fl oz, then add another 1 tablespoon, which brings the total to 1.5 fl oz.
If using a 1/4 cup measure, remember that 1/4 cup equals 4 tablespoons or 2 fl oz. A standard shot is only 3 tablespoons, so do not fill the 1/4 cup measure completely.
If using a 1/2 cup measure, it holds 8 tablespoons or 4 fl oz. That equals 2 standard shots plus 2 extra tablespoons, so it is too large unless you measure carefully.
For batching, 1 cup equals 8 fl oz. Since a standard shot is 1.5 fl oz, 1 cup gives 5 full standard shots with 0.5 fl oz left over.
In tablespoon terms, 1 cup is 16 tablespoons. Five standard shots use 15 tablespoons, leaving 1 tablespoon. That is the cleanest way to check the math without decimals.
Bottom line for U.S. kitchen measuring: use 1 standard shot = 1.5 fl oz = 3 tbsp = about 45 ml. If the glass is 1 oz or 2 oz, measure the pour instead of assuming the glass equals one shot.
US Versus International Shots
In the US, a “shot” usually means 1.5 fluid ounces. Using the kitchen conversion 1 fluid ounce = 30 ml, that equals about 45 ml.
A shot glass is not a fixed global unit. In recipes, cocktails, and bar orders, “1 shot” can mean 25 ml, 30 ml, 35 ml, 44 ml, 45 ml, or 50 ml depending on the country or pour standard.
Common Shot Sizes by Country
| Place or Use | Typical Shot | Approx. US fl oz |
|---|---|---|
| United States standard pour | 45 ml | 1.5 fl oz |
| US small shot / jigger side | 30 ml | 1 fl oz |
| United Kingdom single | 25 ml | 0.83 fl oz |
| United Kingdom larger single | 35 ml | 1.17 fl oz |
| Australia standard nip | 30 ml | 1 fl oz |
| Japan common single | 30 ml | 1 fl oz |
| Europe large shot | 50 ml | 1.67 fl oz |
The practical rule: if a US recipe says “1 shot,” measure 1.5 fl oz unless it gives milliliters or specifies a smaller pour.
Because 1 fluid ounce equals 2 tablespoons, a US 1.5 fl oz shot equals 3 tablespoons. That is often easier than using a shot glass with an unknown fill line.
Worked Examples
If a cocktail calls for 2 US shots of liquor, use 3 fl oz. That is 6 tablespoons, or about 90 ml.
If a UK recipe calls for 2 single 25 ml shots, that is 50 ml. In US kitchen measures, it is about 1.67 fl oz, slightly more than 3 tablespoons.
If an international recipe says 1 shot = 30 ml, that is exactly 1 US fluid ounce by the conversion here. It is smaller than the common US 1.5 fl oz shot.
If a recipe uses 50 ml shots, each one is about 1.67 fl oz. Three of those shots equal 150 ml, or about 5 US fluid ounces.
Edge Cases That Change the Answer
A novelty shot glass may hold 2 fl oz or more when filled to the rim. Do not assume its full capacity equals one recipe shot.
A jigger often has two sides. A common setup is 1.5 fl oz on the large side and 1 fl oz on the small side. Use the labeled side, not the shape.
“Neat pour” and “shot” are not always identical. A bar may serve liquor neat as 2 fl oz while using 1.5 fl oz for a mixed-drink shot.
For recipe consistency, write the amount as fluid ounces or milliliters. “1 shot” is clear only when the pour standard is known.
How To Measure A Shot
A standard U.S. shot is commonly measured as 1.5 fluid ounces. Using the reference conversion, 1 fluid ounce equals 2 tablespoons, so a 1.5-ounce shot equals 3 tablespoons.
Fast Measurement Method
- 1. Pick the target size: For a typical shot, measure 1.5 fluid ounces. For a small pour, use 1 fluid ounce. For a double, use 3 fluid ounces.
- 2. Convert ounces to tablespoons: Since 1 fluid ounce equals 2 tablespoons, multiply the ounce amount by 2. A 1.5-ounce shot is 1.5 × 2 = 3 tablespoons.
- 3. Use teaspoons if needed: 1 tablespoon equals 3 teaspoons. A 1.5-ounce shot is 3 tablespoons, which equals 9 teaspoons.
- 4. Measure with a liquid cup for batches: 1/4 cup equals 4 tablespoons. Since a shot is 3 tablespoons, a 1/4 cup is 1 tablespoon more than a standard 1.5-ounce shot.
- 5. Check metric volume: 1 fluid ounce equals 30 ml. A 1.5-ounce shot is 45 ml. A 1-ounce pour is 30 ml, and a 2-ounce pour is 60 ml.
- 6. Level the measure: Fill the spoon, jigger, or measuring cup to the marked line. Read it at eye level so the liquid surface meets the mark, not above it.
Worked Examples
If a recipe calls for 1 shot, measure 3 tablespoons. That gives you 1.5 fluid ounces, or about 45 ml.
If you only have a teaspoon, measure 9 teaspoons. This is the same as 3 tablespoons, because 1 tablespoon equals 3 teaspoons.
If a cocktail needs 2 shots, measure 6 tablespoons. That equals 3 fluid ounces, because each fluid ounce is 2 tablespoons.
If you pour from a 1/4 cup measure, stop short. A 1/4 cup is 4 tablespoons, but a standard shot is 3 tablespoons.
| Pour | Fluid Ounces | Tablespoons | Milliliters |
|---|---|---|---|
| Small shot | 1 fl oz | 2 tbsp | 30 ml |
| Standard shot | 1.5 fl oz | 3 tbsp | 45 ml |
| Large pour | 2 fl oz | 4 tbsp | 60 ml |
| Double shot | 3 fl oz | 6 tbsp | 90 ml |
Edge Cases
Some shot glasses are not 1.5 ounces. A tall, narrow glass may hold 2 ounces, while a smaller glass may hold 1 ounce. Do not assume the glass size by shape.
To test your shot glass, fill it with water, then pour the water into tablespoons. If it takes 3 tablespoons, the glass holds a standard 1.5-ounce shot.
If it takes 4 tablespoons, the glass holds 2 fluid ounces. If it takes 2 tablespoons, it holds 1 fluid ounce.
For layered drinks, measure each ingredient separately. A “half shot” of a standard 1.5-ounce shot is 0.75 fluid ounce, which equals 1.5 tablespoons.
For batching, count shots first. Four standard shots equal 6 fluid ounces, which is 12 tablespoons, or 180 ml.
Shot Glass Size Chart
In the U.S., a standard shot is 1.5 fluid ounces, or 3 tablespoons, or about 45 ml. Shot glasses are not all the same size, so measure the glass if accuracy matters.
| Shot glass fill | Fluid ounces | Tablespoons | Approx. ml |
|---|---|---|---|
| Small shot | 1 fl oz | 2 tbsp | 30 ml |
| Standard U.S. shot | 1.5 fl oz | 3 tbsp | 45 ml |
| Double shot | 3 fl oz | 6 tbsp | 90 ml |
| Quarter-cup pour | 2 fl oz | 4 tbsp | 59 ml |
| Half-cup pour | 4 fl oz | 8 tbsp | 118 ml |
How to Convert Shots to Kitchen Measurements
Use the USDA/FDA kitchen equivalence: 1 fluid ounce = 2 tablespoons = 30 ml. A 1.5-ounce shot is therefore 3 tablespoons, because 1.5 × 2 = 3.
A double shot is 3 fluid ounces. That equals 6 tablespoons, because 3 × 2 = 6. In metric, 3 fluid ounces is about 90 ml, because each fluid ounce is 30 ml.
If a recipe calls for 1/4 cup, that is 4 tablespoons, or 2 fluid ounces. So 1/4 cup equals more than a standard 1.5-ounce shot by 0.5 fluid ounce.
If a recipe calls for 1/2 cup, that is 8 tablespoons, or 4 fluid ounces. That equals 2 standard shots plus 1 extra fluid ounce.
Worked Examples
Example 1: You need 6 tablespoons of liquid. Since 1 standard shot is 3 tablespoons, use 2 standard shots.
Example 2: You poured 4 standard shots. At 1.5 fluid ounces each, that is 6 fluid ounces total. In tablespoons, that is 12 tablespoons.
Example 3: A cocktail recipe calls for 2 fluid ounces. That is 4 tablespoons. It is not the same as a standard 1.5-ounce shot.
Example 4: You have a 1-ounce shot glass. To measure a standard 1.5-ounce shot, fill it once, then add half of that glass again.
Edge Cases: Why Your Shot Glass May Not Match
Some shot glasses hold exactly 1 fluid ounce. Others hold 1.5, 2, or 3 fluid ounces when filled to the rim. Decorative glasses are especially inconsistent.
Do not assume the rim equals a standard shot. A glass that holds 2 fluid ounces to the top gives you 4 tablespoons, not the 3 tablespoons in a standard U.S. shot.
For cooking, use tablespoons or a liquid measuring cup when precision matters. For cocktails, identify whether the recipe means 1 fluid ounce, 1.5 fluid ounces, or a double shot.
Fast rule: 1 shot = 1.5 fl oz = 3 tbsp = about 45 ml, unless the recipe or measuring glass clearly says a different size.
Common Pouring Mistakes
The biggest mistake is assuming every shot glass holds 1 shot. In U.S. bar use, a standard shot is commonly treated as 1.5 fluid ounces, which equals 3 tablespoons or about 45 ml.
Many shot glasses are decorative, oversized, or undersized. A glass may look like a “shot glass” but hold 1 fluid ounce, 1.5 fluid ounces, 2 fluid ounces, or more when filled to the rim.
Filling to the Rim Instead of Measuring
A 1.5-fluid-ounce pour is 3 tablespoons. If a glass holds 2 fluid ounces to the rim, filling it completely gives 4 tablespoons, not 3 tablespoons.
Worked example: a recipe calls for 1 shot of whiskey. If you pour to the rim of a 2-fluid-ounce glass, you add 2 fluid ounces instead of 1.5 fluid ounces.
That is an extra 0.5 fluid ounce. Since 1 fluid ounce equals 2 tablespoons, the overpour is 1 tablespoon.
In a 4-drink batch, that same mistake adds 2 extra fluid ounces total. That equals 4 extra tablespoons, or 1/4 cup.
Confusing Fluid Ounces With Weight Ounces
A shot is measured in fluid ounces, not weight ounces. Fluid ounces measure volume. Ounces measure weight.
For liquids in recipes, use the volume table: 1 fluid ounce equals 2 tablespoons, or 30 ml. Do not use the weight table, where 1 ounce equals 28.3 g.
This matters when scaling cocktails, syrups, or sauces. “1 oz” in a drink recipe usually means 1 fluid ounce, not 28.3 g by weight.
Using Tablespoons Incorrectly
A common shortcut is measuring shots with a tablespoon. That works only if the math is right: 1 tablespoon is 15 ml, and 1 fluid ounce is 2 tablespoons.
So a 1-fluid-ounce pour is 2 tablespoons. A 1.5-fluid-ounce pour is 3 tablespoons. A 2-fluid-ounce pour is 4 tablespoons.
Worked example: if you add only 2 tablespoons for a standard 1.5-fluid-ounce shot, you poured 1 fluid ounce. You are short by 0.5 fluid ounce, or 1 tablespoon.
Ignoring Batch Conversions
Single-shot errors multiply fast. For 8 drinks using 1.5 fluid ounces each, the total is 12 fluid ounces.
Since 1 cup is 8 fluid ounces, 12 fluid ounces equals 1 1/2 cups. That is also 24 tablespoons.
If you accidentally use 2 fluid ounces per drink for 8 drinks, the total becomes 16 fluid ounces. That equals 2 cups, or 1 pint.
The difference between those two batches is 4 fluid ounces. That equals 8 tablespoons, or 1/2 cup.
Trusting “One Count” Free-Pours
Free-pouring by count is inconsistent unless calibrated. A fast count can overshoot; a slow count can undershoot.
To check your pour, fill your shot glass with water, then pour it into tablespoons. If it takes 3 tablespoons, it holds 1.5 fluid ounces. If it takes 4 tablespoons, it holds 2 fluid ounces.
For accurate recipes, measure the pour first. Use 3 tablespoons for a 1.5-fluid-ounce shot, 2 tablespoons for 1 fluid ounce, and 4 tablespoons for 2 fluid ounces.
Frequently Asked Questions
How many ounces are in a standard shot glass?
A standard U.S. shot is usually 1.5 fluid ounces. Using the kitchen conversion of 1 fluid ounce = 2 tablespoons = 30 ml, that equals 3 tablespoons or about 45 ml. Many bar shot glasses are marked at 1.5 oz.
Is a shot glass 1 ounce or 1.5 ounces?
In the U.S., a shot glass may hold 1 ounce, but a standard drink pour is commonly 1.5 fluid ounces. The difference matters: 1 oz equals 2 tablespoons, while 1.5 oz equals 3 tablespoons, or about 45 ml.
How many tablespoons are in a shot glass?
A 1.5-ounce shot glass holds 3 tablespoons, because 1 fluid ounce equals 2 tablespoons. If your shot glass is the smaller 1-ounce size, it holds 2 tablespoons. Check the marking on the glass for the exact pour line.
How many milliliters are in a shot glass?
A 1.5-fluid-ounce U.S. shot is about 45 ml, based on 1 fluid ounce equaling 30 ml. A 1-ounce shot is about 30 ml. For recipes, measure to the line instead of filling an unmarked glass 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, a cup holds about 5 1/3 shots. If each shot is 1 fluid ounce, a cup holds exactly 8 shots. Use the shot size your recipe specifies.
