How Many Ounces Is A Regular Shot Glass: 1.5 fluid ounces is the standard U.S. bar shot. That equals 3 tablespoons, or about 45 ml, using the kitchen conversion of 1 fluid ounce to 2 tablespoons and 1 tablespoon to 15 ml.
A “regular” shot glass can still vary by country, bar, or glass style, so measure if a recipe or drink ratio matters. In U.S. home kitchens, treat one shot as 1.5 fl oz; two shots as 3 fl oz; and a 1-ounce pour as a smaller shot, not the regular standard.
A regular shot glass in the US typically holds 1.5 fluid ounces, which equals 3 tablespoons or about 44 ml. Some shot glasses hold 1 fluid ounce or 2 fluid ounces, so check the marking if precision matters.
The Short Answer
A regular U.S. shot glass is usually treated as 1.5 fluid ounces. Using standard kitchen measures, that equals 3 tablespoons or about 45 ml.
The key conversion is simple: 1 fluid ounce = 2 tablespoons = 30 ml. So a 1.5-ounce shot is 1 fluid ounce plus another 1 tablespoon.
| 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 tablespoons / 8 fluid ounces | 237 ml |
Regular Shot Glass Math
For a standard 1.5-fluid-ounce shot, start with the table value: 1 fluid ounce = 2 tablespoons. Add another half ounce, which is 1 tablespoon.
That gives you: 1.5 fluid ounces = 3 tablespoons. In metric, 3 tablespoons × 15 ml = 45 ml.
If you are measuring with teaspoons, use the tablespoon row. Since 1 tablespoon = 3 teaspoons, a 3-tablespoon shot equals 9 teaspoons.
If your shot glass is filled to exactly 1 fluid ounce, it is a smaller pour: 1 fluid ounce = 2 tablespoons = 30 ml.
If your glass holds 2 fluid ounces, that is a larger pour: 2 fluid ounces = 4 tablespoons. The table also shows 4 tablespoons as 1/4 cup, or 59 ml.
Fast Measuring Examples
No shot glass? Measure 3 tablespoons for a regular 1.5-ounce shot. That is the cleanest kitchen-measure substitute.
Using a 1/4 cup measure? A full 1/4 cup is 4 tablespoons, which is 2 fluid ounces. For a regular shot, fill it to about three-quarters.
Using a 1/2 cup measure? A 1/2 cup is 8 tablespoons. A regular shot is 3 tablespoons, so it is less than half of a 1/2 cup.
Using teaspoons? Count 9 teaspoons. That equals 3 tablespoons, which equals the regular 1.5-fluid-ounce shot.
The practical answer: if a recipe says “1 shot” and gives no other number, measure 1.5 fluid ounces, 3 tablespoons, or about 45 ml.
Regular Shot Glass Ounces
A regular U.S. shot glass usually holds 1.5 fluid ounces. Using the provided conversion, 1 fluid ounce is 2 tablespoons, so a regular shot is 3 tablespoons.
In metric, 1 fluid ounce is 30 ml. That makes a 1.5-ounce shot 45 ml. If your recipe says “1 shot,” this is the amount to use unless it names a different size.
| Measure | US equivalent | Metric |
|---|---|---|
| 1 regular shot | 1.5 fl oz | 45 ml |
| 1 regular shot | 3 tbsp | 45 ml |
| 2 regular shots | 3 fl oz | 90 ml |
| 4 regular shots | 6 fl oz | 180 ml |
How to Measure a Regular Shot Without a Shot Glass
If you do not have a shot glass, measure 3 tablespoons. Since 1 tablespoon is 15 ml, 3 tablespoons equals 45 ml, the same as a 1.5-fluid-ounce shot.
You can also measure by teaspoons. One tablespoon is 3 teaspoons, so 3 tablespoons equals 9 teaspoons. That means 1 regular shot is 9 teaspoons.
For a measuring cup, use less than 1/4 cup. A 1/4 cup is 4 tablespoons, or 59 ml. A regular shot is 3 tablespoons, so it is 3/4 of a 1/4-cup measure.
Worked Examples
If a cocktail calls for 2 shots, use 3 fluid ounces. That is 6 tablespoons, because each fluid ounce equals 2 tablespoons.
Metric example: 2 shots equals 90 ml. The math is 45 ml per shot multiplied by 2.
If a punch recipe calls for 8 regular shots, use 12 fluid ounces. That is 24 tablespoons, or 360 ml.
If you are scaling down, half of a regular shot is 0.75 fluid ounce. That equals 1.5 tablespoons, or 22.5 ml.
Edge Cases: Small, Tall, and Oversized Shot Glasses
Not every glass called a “shot glass” is exactly 1.5 fluid ounces. Some small glasses are 1 fluid ounce, while larger ones may hold 2 fluid ounces or more.
A 1-fluid-ounce glass equals 2 tablespoons, or 30 ml. If you use that as a “shot,” your pour is smaller than a regular 1.5-ounce shot by 0.5 fluid ounce.
A 2-fluid-ounce glass equals 4 tablespoons, or 60 ml. That is larger than a regular shot by 0.5 fluid ounce.
The safest practical check is to fill the glass with water, then pour it into measuring spoons. If it holds 3 tablespoons, it is a regular 1.5-ounce shot glass.
For recipes, treat “regular shot glass” as 1.5 fluid ounces, 3 tablespoons, or 45 ml. For accuracy, measure instead of relying on the shape of the glass.
US Shot Versus Jigger
A regular US shot is commonly treated as 1.5 fluid ounces. Using the kitchen conversion of 1 fluid ounce = 2 tablespoons = 30 ml, that shot equals 3 tablespoons or about 45 ml.
A jigger is a measuring tool, not a single fixed drink size. The most common US bar jigger has two sides: 1.5 fluid ounces on the large side and 0.75 fluid ounce on the small side.
So, in everyday US bar use, the large side of a jigger usually equals one regular shot. The small side is usually a half-shot.
Quick US Shot and Jigger Conversions
| Measure | Fluid ounces | Tablespoons | Milliliters |
|---|---|---|---|
| Small jigger side | 0.75 fl oz | 1.5 tbsp | 22.5 ml |
| Regular US shot | 1.5 fl oz | 3 tbsp | 45 ml |
| Large jigger side | 1.5 fl oz | 3 tbsp | 45 ml |
| Double shot | 3 fl oz | 6 tbsp | 90 ml |
Worked example: if a cocktail recipe calls for 1 shot of whiskey, pour the 1.5-ounce side of a standard jigger once. That gives 3 tablespoons, or about 45 ml.
If the recipe calls for 2 shots, measure the 1.5-ounce jigger side twice. Total pour: 3 fluid ounces, which equals 6 tablespoons or about 90 ml.
If it calls for 1/2 shot, use the 0.75-ounce side once. That is 1 1/2 tablespoons, or about 22.5 ml.
Where Confusion Happens
Shot glasses are often not precision tools. A glass may look like a “regular shot glass” but hold 1 ounce, 1.25 ounces, 1.5 ounces, or 2 ounces when filled to the rim.
A thick-bottomed souvenir shot glass can be especially misleading. It may look large outside but hold less liquid inside. For recipes, measure capacity with tablespoons or a jigger once.
Edge case: some jiggers are marked 1 ounce / 2 ounces instead of 0.75 / 1.5. If you use the 2-ounce side as “one shot,” your drink is 33% larger than a 1.5-ounce standard shot.
Another edge case: a “pony” measure is commonly 1 fluid ounce. That is 2 tablespoons or about 30 ml, so it is smaller than a regular 1.5-ounce US shot.
Best practical answer: for US recipes and home bar measuring, treat 1 regular shot glass as 1.5 fluid ounces. Use the large side of a standard jigger for one shot.
Common Shot Glass Sizes
A regular shot glass in the US is most often treated as 1.5 fluid ounces. Using the reference conversion, that equals 3 tablespoons or about 45 ml.
The confusion comes from the glass, not the pour. Many shot glasses hold more than the intended serving, especially souvenir, tapered, or heavy-bottomed glasses.
US shot glass amounts by volume
| Shot size | Tablespoons | Milliliters | Best use |
|---|---|---|---|
| 1 fluid ounce | 2 tablespoons | 30 ml | Small pour, tasting, some bar recipes |
| 1.5 fluid ounces | 3 tablespoons | 45 ml | Regular US shot |
| 2 fluid ounces | 4 tablespoons | 60 ml | Large shot or measured cocktail pour |
If a recipe says “1 shot” and gives no other detail, measure 1.5 fluid ounces. That is the safest kitchen assumption for a regular American shot.
Worked example: a cocktail calls for 2 shots of liquor. At 1.5 fluid ounces each, that is 3 fluid ounces total, or 6 tablespoons, or about 90 ml.
Another example: a sauce calls for half a shot of bourbon. Half of a regular 1.5-ounce shot is 0.75 fluid ounce, which is 1.5 tablespoons, or about 22.5 ml.
How to check your own shot glass
Use tablespoons if the glass has no marking. Fill it level with water, then pour into a tablespoon measure and count.
If it holds 2 tablespoons, it is a 1-fluid-ounce glass. If it holds 3 tablespoons, it matches a regular 1.5-fluid-ounce shot.
If it holds 4 tablespoons, the glass is 2 fluid ounces. That is larger than a regular shot, even if it looks like a normal shot glass.
Edge case: a thick-base shot glass may look large but hold only 1 ounce because the heavy bottom takes up space. A tall narrow glass may look small but still hold 1.5 ounces.
Another edge case is the fill line. Some shot glasses hold 2 ounces to the rim but have a line at 1.5 ounces. For recipes, measure to the line if one is marked.
For tablespoon conversions, remember the exact kitchen math: 1 fluid ounce = 2 tablespoons. So a 1.5-ounce regular shot is simply 2 tablespoons + 1 tablespoon.
For cup conversions, a regular 1.5-ounce shot is 3 tablespoons. Since 1/4 cup = 4 tablespoons, one regular shot is 3/4 of 1/4 cup.
Four regular shots equal 6 fluid ounces. That is 12 tablespoons, or 3/4 cup, because 1 cup is 8 fluid ounces.
Bottom line for US kitchen measuring: a regular shot glass is 1.5 fluid ounces, but the physical glass may hold 1, 1.5, or 2 fluid ounces. Measure once to know.
How To Measure A Shot
A regular U.S. shot is commonly measured as 1.5 fluid ounces. Using kitchen measures, that is 3 tablespoons, because 1 fluid ounce equals 2 tablespoons.
In metric, 1 fluid ounce is 30 ml, so a 1.5-ounce shot is about 45 ml. If your shot glass has no line, measure it once with spoons or a liquid measuring cup.
Step-By-Step Shot Measurement
- Step 1: Identify the target pour. For a standard U.S. shot, use 1.5 fl oz. For a smaller pour, use 1 fl oz. For a double, use 3 fl oz.
- Step 2: Use tablespoons if you do not have a jigger. Measure 3 tablespoons for a regular 1.5-ounce shot. Measure 2 tablespoons for a 1-ounce shot.
- Step 3: Use teaspoons for fine adjustment. Since 1 tablespoon equals 3 teaspoons, a regular shot equals 9 teaspoons. This helps if your spoon set is more accurate than your glass.
- Step 4: Check the metric amount. A regular shot is about 45 ml. A 1-ounce pour is 30 ml. A 2-ounce pour is 60 ml.
- Step 5: Mark your glass once. Pour 3 tablespoons of water into the glass. The water line is your 1.5-ounce mark. Use a piece of tape outside the glass to remember it.
- Step 6: Account for the rim. If the glass holds 1.5 ounces only when filled to the brim, pour slightly below the rim to avoid spills. That may be closer to 1.25 ounces.
Quick Conversion Table
| Pour Size | Tablespoons | Teaspoons | Metric |
|---|---|---|---|
| 1 fl oz | 2 tbsp | 6 tsp | 30 ml |
| 1.5 fl oz | 3 tbsp | 9 tsp | 45 ml |
| 2 fl oz | 4 tbsp | 12 tsp | 60 ml |
| 3 fl oz | 6 tbsp | 18 tsp | 90 ml |
Worked example: if a recipe calls for 2 shots and you use regular U.S. shots, measure 3 fl oz total. That equals 6 tablespoons, or about 90 ml.
Another example: if a cocktail asks for 1 ounce and your shot glass is a 1.5-ounce glass, do not fill it. Measure 2 tablespoons, or fill only about two-thirds of that glass.
Edge case: many decorative shot glasses are oversized. A glass labeled “shot glass” may hold 2 ounces or more. Always test capacity with water before using it for a precise recipe.
Edge case: thick-bottomed shot glasses look larger than they pour. The outside height is not useful. Measure liquid volume, not the apparent size of the glass.
Quick Pour Size Chart
A regular 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.
| Pour name | Fluid ounces | Tablespoons | Metric | Best use |
|---|---|---|---|---|
| Small shot | 1 fl oz | 2 tbsp | 30 ml | Light pours, tastings |
| Regular U.S. shot | 1.5 fl oz | 3 tbsp | 45 ml | Most cocktails |
| Double shot | 3 fl oz | 6 tbsp | 90 ml | Doubles, stronger drinks |
| Half shot | 0.75 fl oz | 1.5 tbsp | 22.5 ml | Layered drinks, modifiers |
| Quarter cup pour | 2 fl oz | 4 tbsp | 59 ml | Large home pours |
What “regular shot glass” means in practice
If a recipe says “1 shot” and gives no other number, measure 1.5 fl oz. That is the standard working amount for many U.S. mixed drinks, even when the glass itself can physically hold more.
Do not assume the glass is filled to the rim. Many shot glasses have extra headroom. A glass that holds 2 fl oz when brimming may still be used for a 1.5 fl oz pour.
For kitchen measuring, the simplest check is tablespoons. Since 1 fl oz = 2 tbsp, a regular 1.5 fl oz shot is 3 tablespoons. No jigger is required.
Worked examples
Example 1: A margarita calls for 2 shots of tequila. Use 2 × 1.5 fl oz = 3 fl oz. That equals 6 tablespoons, or about 90 ml.
Example 2: A sauce or dessert recipe calls for 1/2 shot of liqueur. Use 0.75 fl oz. That equals 1.5 tablespoons, or about 22.5 ml.
Example 3: You have a 1/4 cup measure and need a single regular shot. A 1/4 cup is 2 fl oz, so fill it to about three-quarters for 1.5 fl oz.
Example 4: A recipe says 45 ml whiskey. Since 1 fl oz = 30 ml, 45 ml equals 1.5 fl oz. That is one regular U.S. shot.
Common edge cases
A “pony shot” is often smaller than a regular shot. If you are converting for a recipe, do not treat a small tasting glass as 1.5 fl oz unless you measure it.
A “double” is not one oversized splash. For accurate mixing, count it as 3 fl oz, which is 6 tablespoons or about 90 ml.
If your shot glass has a line below the rim, measure to the line, not the top. The printed line may mark 1 fl oz, 1.5 fl oz, or another pour size.
For baking, use measuring spoons instead of eyeballing. Alcohol volume affects moisture and flavor. A regular shot is exactly 3 tablespoons for practical kitchen use.
Why Shot Sizes Vary
A “regular” shot glass is not one fixed size everywhere. In the United States, a common bar pour is 1.5 US fluid ounces, which equals 44.36 ml. But shot glasses may hold 1 oz, 1.25 oz, 1.5 oz, or 2 oz.
The main reason is that “shot” is a serving term, not a universal measuring unit. A glass can look like a shot glass but hold more or less than the amount a bartender actually pours.
Local rules and bar standards
Some places define liquor servings by law or licensing practice. Others leave it to the bar. That is why a customer may receive 1.5 oz in one US bar and 1.25 oz in another.
International sizes vary even more. A UK single measure is commonly 25 ml or 35 ml. In US fluid ounces, 25 ml is about 0.85 oz, while 35 ml is about 1.18 oz.
Australia commonly uses 30 ml for a standard nip of spirits. That equals about 1.01 US fl oz, noticeably smaller than a 1.5 oz US shot.
Drink strength changes with the pour
Shot size matters because alcohol content changes directly with volume. A 1.5 oz pour of 40% ABV liquor contains 0.60 fl oz of pure alcohol.
Worked example: 1.5 oz × 0.40 = 0.60 oz alcohol. That matches the US standard drink definition used for 80-proof spirits.
A 1 oz shot of the same 40% liquor contains 0.40 fl oz alcohol. A 2 oz shot contains 0.80 fl oz alcohol, which is one-third more than a 1.5 oz pour.
Glass size is not always pour size
A shot glass labeled 2 oz may be used for a 1.5 oz pour so there is room at the top. A 1.5 oz glass filled to the rim can spill and is not always how bars measure.
For accuracy, use a jigger or marked measuring glass. In US recipes, assume 1 shot means 1.5 fl oz unless the recipe, bar menu, or local standard says otherwise.
Shot Ounces In Milliliters
A regular U.S. shot glass is commonly 1.5 fluid ounces. In milliliters, that is 44.36 mL, often rounded to 44 mL or 45 mL for home pouring.
The conversion is exact enough for bar and kitchen use: 1 U.S. fluid ounce equals 29.5735 mL. Multiply the ounces by 29.5735 to get milliliters.
Common Shot Sizes Converted
A 1 oz shot equals 29.57 mL. This is a small pour and is sometimes called a single in recipes or tasting pours.
A 1.25 oz shot equals 36.97 mL. This size appears in some older or smaller shot glasses.
A 1.5 oz shot equals 44.36 mL. This is the standard “regular shot” size in much of the United States.
A 2 oz shot equals 59.15 mL. This is often called a double shot or a larger cocktail pour.
Worked Examples
Example 1: If a recipe calls for 1 regular shot of vodka, use 1.5 oz × 29.5735 = 44.36 mL. Measuring 45 mL is a practical rounded amount.
Example 2: If you need 3 regular shots, calculate 3 × 44.36 mL = 133.08 mL. Rounded for measuring, that is about 133 mL.
Example 3: If a cocktail uses 2 oz of liquor, convert it as 2 × 29.5735 = 59.15 mL. A 60 mL jigger side is close but slightly over.
Do not confuse U.S. fluid ounces with weight ounces. Shot glasses measure volume, not weight. A 1.5 fl oz shot is 44.36 mL whether the liquid is whiskey, tequila, or juice.
For the most accurate pour, check the marking on the glass or use a jigger. Many shot glasses look similar but may hold 1 oz, 1.5 oz, or 2 oz.
Single Versus Double Shots
In most U.S. bars, a single shot means 1.5 fluid ounces. A double shot is usually 3.0 fluid ounces, or exactly 2 single shots poured into one drink.
That means a regular 1.5-ounce shot glass holds one standard single shot when filled to its intended line or rim, depending on the glass design.
Standard U.S. Pour Sizes
Here is the basic math: 1 single shot = 1.5 fl oz. 1 double shot = 3 fl oz. If a cocktail calls for “2 shots” of vodka, that is 3 fl oz total.
Example: a recipe with 1 shot tequila, 1/2 shot orange liqueur, and 1/2 shot lime juice uses 1.5 fl oz tequila, 0.75 fl oz liqueur, and 0.75 fl oz lime juice.
A double is not a larger shot glass measurement by itself. It is a larger serving. You can measure it with two 1.5-ounce pours or one 3-ounce pour.
Single vs. Double in a Jigger
A common bartender’s jigger has two sides: 1.5 fl oz on the large side and 0.75 fl oz on the small side. The large side measures a single shot.
To pour a double with that jigger, fill the 1.5-ounce side twice. Two full large-side pours equal 3.0 fl oz.
Some jiggers are marked 2 fl oz and 1 fl oz instead. In that case, a full 2-ounce side is not a standard 1.5-ounce U.S. single shot, so read the markings.
Worked Drink Examples
For a whiskey on the rocks, a single is typically 1.5 fl oz whiskey over ice. A double whiskey on the rocks is typically 3 fl oz whiskey over ice.
For a gin and tonic, using a single shot gives 1.5 fl oz gin. Ordering a double gives 3 fl oz gin, before adding tonic.
If your shot glass is 2 fl oz, filling it to the rim gives more than a standard single. It is 0.5 fl oz above a 1.5-ounce pour.
If your shot glass is 1 fl oz, one full glass is short of a standard single. You would need 1.5 full pours to equal 1.5 fl oz.
Reader Questions
How many ounces is a regular shot glass?
A regular shot glass in the United States is usually 1.5 fluid ounces. That equals 3 tablespoons, since 1 fluid ounce equals 2 tablespoons. Some small shot glasses hold 1 fluid ounce, so check the fill line or measure with tablespoons if accuracy matters.
Is a shot glass 1 ounce or 1.5 ounces?
It can be either, but the standard bar pour commonly meant by a regular shot is 1.5 fluid ounces. A 1-ounce glass is a smaller shot glass. For measuring, 1 fluid ounce equals 2 tablespoons, while 1.5 fluid ounces equals 3 tablespoons.
How many tablespoons are in a regular shot?
A regular 1.5-fluid-ounce shot equals 3 tablespoons. The conversion is simple: 1 fluid ounce equals 2 tablespoons, so 1.5 fluid ounces equals 3 tablespoons. If your shot glass is only 1 fluid ounce, it holds 2 tablespoons.
How many milliliters is a regular shot glass?
A regular 1.5-fluid-ounce shot is about 45 ml, using the standard conversion of 1 fluid ounce to 30 ml. A smaller 1-fluid-ounce shot is 30 ml. Many shot glasses are not filled exactly to the rim, so measure once if precision matters.
What is a double shot in ounces?
In the U.S., a double shot is commonly 3 fluid ounces when the regular shot is 1.5 fluid ounces. Some bars may pour a 2-ounce double if their house single is 1 ounce, so the exact amount depends on the bar’s standard pour.
How can I measure a shot without a shot glass?
Use measuring spoons or a liquid measuring cup. A common U.S. shot of 1.5 fluid ounces equals 3 tablespoons. If a recipe calls for a 1-ounce shot, measure 2 tablespoons instead. For best accuracy, use a marked liquid measure.
Are all shot glasses the same size?
No. Shot glasses are not all the same size. In the U.S., many hold 1.5 fluid ounces, but some hold 1 ounce, 2 ounces, or more. Decorative shot glasses may be oversized, so check the markings or measure with water.
