A 13 gallon trash bag is approximately 49.2 liters in capacity and is most commonly used with tall kitchen trash cans in the United States.
But there is no single fixed width and length for every 13 gallon bag.
Many consumer 13 gallon tall kitchen bags are approximately 23.75–24 inches wide and about 25–28 inches long, while longer open-top or commercial liners for similar-capacity cans may measure around 24 × 32–33 inches.
The important distinction is simple:
13 gallons describes capacity. It does not define one mandatory flat bag dimension.
The actual dimensions depend on the trash can shape, closure style, bottom construction, film design, and the amount of material needed to fit over the rim.
This guide explains the common dimensions of 13 gallon trash bags, how they compare in inches and centimeters, what size trash cans they fit, and how to measure your bin before choosing a liner.
13 Gallon Trash Bag Dimensions at a Glance
The table below provides a practical reference for common 13 gallon bag configurations.
| Specification | Typical Reference |
|---|---|
| Capacity | 13 US gallons |
| Metric capacity | Approximately 49.2 liters |
| Common flat width | Approximately 23.75–24 inches |
| Common consumer bag length | Approximately 25–28 inches |
| Longer open-top liner length | Approximately 32–33 inches |
| Approximate width in cm | 60–61 cm |
| Approximate length in cm | About 63–84 cm, depending on design |
| Most common use | Tall kitchen trash cans |
| Common closure styles | Drawstring, tie, open top |
| Typical application | Household kitchen waste |
For this reason, it is better to think of 24 inches as a common width rather than assuming that every 13 gallon bag must have the same length.
What Is the Standard Size of a 13 Gallon Trash Bag?
There is no universal dimensional standard requiring every 13 gallon trash bag to have exactly the same width and length.
A commonly encountered retail configuration is approximately 24 inches wide × 27 inches long, or about 61 × 69 cm. However, shorter and longer versions are also available.
For example, the physical dimensions may change depending on whether the bag has a drawstring, an open top, extra film for overhang, a different bottom seal, or a shape designed around a particular trash can.
This explains why shoppers may find several different measurements on packages that are all labeled 13 gallon.
The gallon number is best treated as a capacity category. For an accurate fit, the actual width and length printed on the bag specification are more useful than the gallon number alone.
Why Do 13 Gallon Trash Bag Dimensions Vary?
Trash bags are flexible products rather than rigid containers. Two bags can therefore provide similar usable capacity while having different lay-flat dimensions.
Several design factors can change the final dimensions:
- Closure design: drawstring, tie-handle, flap-tie and open-top bags use film differently.
- Bottom construction: flat-bottom, star-seal and other constructions affect how the bag opens and uses its length.
- Trash can shape: a narrow, tall bin and a shorter, wider bin can have similar capacity but require different liner proportions.
- Rim overhang: some liners provide extra length so the bag can fold securely over the rim.
- Film properties: stretch and flexibility can affect how closely a liner is designed to fit a particular can.
- Manufacturer specifications: brands may optimize their bags around different trash can designs.
This is why 13 gallon trash bag size should not be defined by one width × length measurement alone.
Is a 13 Gallon Trash Bag the Same as a Tall Kitchen Trash Bag?
In the U.S. market, 13 gallon bags are commonly marketed as tall kitchen trash bags.
A tall kitchen trash can is typically taller and narrower than a general-purpose wastebasket, which is why 13 gallon bags are usually designed with a relatively narrow width and enough length to reach the bottom of the can and stay secured around the rim.
However, “tall kitchen” is a product category rather than an exact dimensional specification.
One tall kitchen bag may measure approximately 24 × 27 inches, while another 13 gallon liner may be shorter, longer, or constructed differently.
If you already own the trash can, checking its actual dimensions is more reliable than purchasing a bag based only on the words 13 gallon or tall kitchen.
How Many Liters Is a 13 Gallon Trash Bag?
One U.S. liquid gallon equals approximately 3.785 liters.
Therefore:
13 gallons × 3.785 = approximately 49.2 liters
A 13 gallon trash bag is therefore commonly treated as a 49–50 liter bag for capacity comparison.
However, a 50-liter trash can and a product labeled 13 gallons are not automatically guaranteed to have identical physical proportions.
A 50-liter rectangular kitchen bin may be tall and narrow, while another 50-liter bin may be shorter and wider. Both hold a similar volume, but the correct flat bag width and length can differ.
For international buyers, gallons and liters are useful for identifying the capacity class, while bag width and bag length should be used to confirm the actual fit.
What Size Trash Can Fits a 13 Gallon Bag?
A 13 gallon trash bag is commonly used for standard tall kitchen trash cans in roughly the 10–16 gallon range, depending on the shape and dimensions of the can.
Capacity alone is not enough to guarantee the fit.
Consider two hypothetical trash cans that both hold approximately the same volume:
| Trash Can | Shape | Possible Fit Issue |
|---|---|---|
| Can A | Tall and narrow | Bag may need more length |
| Can B | Short and wide | Bag may need more width |
| Can C | Thick or projecting rim | Additional width may be required |
| Can D | Inner bucket design | Actual liner dimensions depend on the removable bucket |
A bag that fits one 13 gallon kitchen can perfectly may feel too tight or too loose on another.
This is why measuring the trash can is particularly useful when buying private-label bags, commercial liners, non-standard kitchen cans, or bulk quantities.
How to Measure a Trash Can for the Correct Bag Size
For the most accurate fit, measure the trash can rather than relying only on its stated gallon capacity.
Rectangular or Square Trash Can
Measure the length and width of the opening and the height from the bottom to the rim.
A useful starting formula for flat bag width is:
Bag Width = Trash Can Length + Trash Can Width
For example, if the opening measures 13 inches × 10 inches:
13 + 10 = 23 inches
A bag approximately 24 inches wide would provide a practical starting point.
The liner must also be long enough to reach the bottom of the can and leave material above the rim. For open-top liners, additional length is normally required for the bottom of the container and rim overhang.
Round Trash Can
For a round trash can, measure the diameter across the widest part of the opening.
The approximate minimum flat bag width can be calculated as:
Bag Width = Diameter × 3.14 ÷ 2
For example, a trash can with a 15-inch diameter requires approximately:
15 × 3.14 ÷ 2 = 23.55 inches
A bag around 24 inches wide would therefore be a reasonable starting point.
Bag length should also account for the height of the can, the material needed to cover the bottom, and enough extra film to fold over the rim.
These formulas are useful starting points, but closure systems, inner buckets, unusually thick rims and tapered bin shapes can change the final fit.
Why Doesn’t My 13 Gallon Trash Bag Fit My 13 Gallon Can?
This is one of the most common sources of confusion when choosing kitchen trash bags.
A trash can labeled 13 gallons tells you approximately how much volume the container holds. It does not tell you the exact circumference of the opening, the width and depth of a rectangular rim, or how tall the container is.
If the bag will not stretch comfortably over the rim, the bag may be too narrow even though the gallon rating appears correct.
If the bag reaches the rim but keeps slipping inside as waste is added, it may not provide enough length or overhang.
And if a liner fits loosely with large amounts of unused film around the sides, it may simply be larger than the can requires.
For the best fit, compare the bag’s flat width and length with the actual dimensions of the trash can.
13 Gallon vs 15 Gallon vs 20 Gallon Trash Bags
Nearby gallon sizes are not interchangeable in every situation.
| Bag Capacity | Approx. Liters | Typical Application | General Size Relationship |
|---|---|---|---|
| 13 gallon | 49.2 L | Standard tall kitchen cans | Common household kitchen size |
| 14 gallon | 53.0 L | Slightly larger kitchen bins | Usually provides somewhat more capacity |
| 15 gallon | 56.8 L | Larger kitchen or utility bins | More room for larger or taller cans |
| 20 gallon | 75.7 L | Large household, office or utility bins | Usually noticeably wider and/or longer |
A common open-top liner used around the 20–30 gallon range is approximately 30 × 36 inches, but exact dimensions again depend on the liner and the container.
If a 13 gallon bag is consistently difficult to pull over the rim of your trash can, moving to a larger bag can help. If the width fits but the bag is only slightly too short, it may be better to find a longer liner with a similar width rather than automatically moving to a much larger gallon rating.
Does Trash Bag Thickness Change the Dimensions?
Thickness and size describe two different characteristics.
Width and length determine fit. Thickness primarily affects strength, puncture resistance, weight and material usage.
For example, two 13 gallon bags could have identical flat dimensions but different film thicknesses.
A thicker bag does not automatically have a larger gallon capacity, and a thinner bag does not necessarily have smaller dimensions.
This distinction is particularly important for commercial and private-label buyers because the correct specification normally needs to define both:
Bag dimensions + film thickness
rather than specifying only “13 gallon.”
Are Compostable 13 Gallon Trash Bags the Same Size?
Compostable 13 gallon trash bags can be manufactured in dimensions similar to conventional kitchen liners, but they are not required to match one universal 13 gallon measurement.
A compostable liner may be designed around a particular trash can, packaging format, seal construction or end-use requirement.
For buyers sourcing compostable kitchen bags, the specification should therefore identify the required width, length, thickness, bag construction, packing method and applicable compostability requirements rather than relying only on the gallon rating.
For more information about materials, thickness, certification and bulk purchasing, see our 13 Gallon Compostable Trash Bags Buying Guide.
For a broader comparison of household and commercial liner capacities, see our Trash Bag Sizes Chart: Gallons, Liters, Inches & CM.
How Do I Choose the Right 13 Gallon Trash Bag?
Start with fit before considering additional features.
Measure the trash can opening and height, then compare those measurements with the actual flat width and length of the bag. Once the correct dimensions are established, consider the film strength, closure type, material and waste application.
For normal household kitchen waste, a standard tall kitchen bag may be sufficient. Wet, heavy or sharp waste may require a stronger construction. Food-waste and organics programs may also require a certified compostable liner where those bags are accepted by the local collection or composting system.
For private-label or bulk manufacturing, specifying the physical dimensions instead of simply requesting “13 gallon bags” helps reduce sampling errors and improves fit consistency.
FAQ About 13 Gallon Trash Bag Dimensions
What are the dimensions of a 13 gallon trash bag?
Many 13 gallon consumer kitchen bags are approximately 24 inches wide, while their length often varies from about 25 to 28 inches. Longer open-top liners for similar-capacity cans can reach approximately 32–33 inches. There is no single mandatory dimension for every 13 gallon bag.
Is 24 × 27 inches a 13 gallon trash bag?
Yes. 24 × 27 inches is a common dimension for some 13 gallon tall kitchen bags, but it is not the only size sold as 13 gallons.
Is 24 × 30 inches a 13 gallon trash bag?
A bag around 24 × 30 inches can fall within the general 13 gallon kitchen-liner size range, depending on its construction and intended bin. Capacity should not be determined from width and length alone.
Is 24 × 33 inches a 13 gallon trash bag?
A 24 × 33 inch liner is commonly used for some approximately 12–16 gallon containers, particularly open-top commercial can liners. It is longer than many consumer drawstring kitchen bags.
How many liters is a 13 gallon trash bag?
Thirteen U.S. gallons equals approximately 49.2 liters, so 13 gallon bags are commonly associated with the 49–50 liter capacity class.
What size is a standard kitchen trash bag?
In the United States, 13 gallons is one of the most common tall kitchen trash bag capacity classes. Actual dimensions vary among products, so check the width and length when fit is important.
Will a 13 gallon trash bag fit a 12 gallon trash can?
Often yes, but not automatically. A slightly smaller-capacity can can still be unusually wide, tall or have a thick rim. Comparing actual can and bag dimensions is more reliable than comparing gallon ratings alone.
Will a 13 gallon bag fit a 15 gallon trash can?
It may fit some 15 gallon cans, but the bag can be too tight or too short depending on the shape of the container. A 15 gallon or appropriately sized liner is generally safer when the can is larger than the bag’s intended capacity range.
What size trash bag should I use for a 20 gallon can?
Many 20 gallon containers require a bag larger than a typical 13 gallon kitchen liner. Around 30 × 36 inches is a common starting point for some 20–30 gallon open-top liners, but measuring the container is the best way to confirm the required width and length.
13 Gallon Trash Bag Size: The Bottom Line
A 13 gallon trash bag holds approximately 49.2 liters, but there is no single universal width and length that defines every 13 gallon bag.
For consumer tall kitchen bags, about 24 inches is a common flat width, while the length varies substantially according to closure style and construction. Open-top liners designed for similar-capacity containers may be considerably longer.
The most reliable rule is therefore:
Use gallons or liters to identify the general capacity class, then use the actual bag width and length to confirm the fit.
If you are comparing other capacities, visit our Trash Bag Sizes Chart for common sizes in gallons, liters, inches and centimeters.
If you are sourcing certified compostable kitchen liners for retail, distribution or private-label programs, explore our 13 Gallon Compostable Trash Bags Buying Guide or contact ORIZON for a custom size recommendation.
