When it comes to designing or renovating a bathroom, one often overlooked detail is the size of the bathroom trash can. While it might not be the most glamorous aspect, choosing the right size can significantly impact the functionality and aesthetics of your space. This article aims to provide a comprehensive guide on the average size of bathroom trash can, helping you make an informed decision.
Understanding Bathroom Trash Can Sizes
Bathroom trash cans come in a variety of sizes, typically measured by their capacity and dimensions. The capacity is usually expressed in gallons, while dimensions are given in inches (height x width x depth). Understanding these sizes can help you determine what will fit best in your bathroom.
Capacity: Gallons vs. Liters
Trash can capacities are often measured in gallons or liters. One gallon is approximately equal to 3.785 liters. Here's a simple conversion guide:

- 1 gallon ≈ 3.785 liters
- 2 gallons ≈ 7.57 liters
- 3 gallons ≈ 11.36 liters
- 4 gallons ≈ 15.14 liters
Dimensions: Height, Width, and Depth
Dimensions are crucial when choosing a trash can, as you need to ensure it fits in your available space. Here's a breakdown of each dimension:
- Height: This is the tallest part of the trash can, including the lid. It's important to consider the height of your bathroom cabinets or vanity to ensure the trash can fits underneath.
- Width: This is the widest part of the trash can. It's crucial to measure the space where you plan to place the trash can to ensure it fits.
- Depth: This is the farthest part of the trash can from the back. It's important to consider this dimension if you're planning to place the trash can in a corner or against a wall.
Average Bathroom Trash Can Sizes
Now that we understand the different measurements let's look at some average bathroom trash can sizes. Remember, these are averages, and sizes can vary.
| Capacity | Height (inches) | Width (inches) | Depth (inches) |
|---|---|---|---|
| 1.5 gallons | 12-15 | 8-10 | 8-10 |
| 3 gallons | 15-18 | 10-12 | 10-12 |
| 4 gallons | 18-21 | 12-14 | 12-14 |
Factors to Consider When Choosing a Bathroom Trash Can Size
When selecting a bathroom trash can, consider the following factors:

- Space Availability: Measure your available space to ensure the trash can fits.
- Capacity Needs: Consider how often you'll need to empty the trash can. A larger capacity may be necessary for families or those who use the bathroom frequently.
- Aesthetics: Choose a design that complements your bathroom decor.
- Ease of Use: Consider features like step pedals, touchless operation, or removable liners for easy cleaning.
In conclusion, the average size of a bathroom trash can typically ranges from 1.5 to 4 gallons in capacity, with heights ranging from 12 to 21 inches. However, the best size for your bathroom depends on your specific needs and available space. By considering factors like capacity, space availability, aesthetics, and ease of use, you can choose the perfect bathroom trash can for your home.