What Size Toilet Seat Do I Need?

Not sure what size toilet seat you need? This quick and easy guide will help you measure and find the right size for your bathroom.

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Standard Toilet Seat Sizes

Most people think that all toilet seats are the same size, but that is not the case. Toilet seats come in all different shapes and sizes. The most common toilet seat size is the standard size. The standard size toilet seat is typically between 16 and 18 inches wide.

Round toilet seats

Round toilet seats measure approximately 16.5 inches in diameter and are designed to fit most standard round toilets. If your toilet seat is larger or smaller than this, you may need a speciality size.

Elongated toilet seats

An elongated toilet seat is oval shaped and about 2 inches longer than a round seat. Elongated seats are about 18.5 inches long, while round seats are about 16.5 inches long. If you have an elongated bowl, you need an elongated seat. Otherwise, you can choose between the two types based on your personal preference. Many people find elongated seats more comfortable, but round seats take up less space and may be a better option if you have a small bathroom.

Toilet Seat Measurements

One of the most important aspects of choosing a toilet seat is getting the right size. If the seat is too big or too small, it can be very uncomfortable. Toilet seats are typically measure in inches, with the most common sizes being 16, 17, and 18 inches. The width of the seat is the most important measurement, but you also need to make sure that the seat is the right shape and has the right features for your needs.


While most toilets are standard size, there are a few that are not. Toilet seats come in different sizes to accommodate these atypical toilets. The width of a toilet seat is the measurement from left to right at the widest point. If you have a standard size toilet, you will need to measure the width of your toilet bowl to ensure you order the correct size seat.


Toilet seats come in different lengths. A standard size toilet seat is about 18.5 inches long, but you can also find seats that are 17 or 16.5 inches long. If you have a smaller toilet, you may want to consider a shorter length seat. You can also find seats that are 19 or 20 inches long if you need a little extra room.


One of the most important considerations when buying a toilet seat is height. Toilet seats come in a variety of heights, so it’s important to measure your toilet before you buy a seat. The average height for a toilet seat is about 15 inches, but seats can range from 14 to 19 inches. If you’re not sure how to measure your toilet, check out our step-by-step guide.

Once you know the height of your toilet, you can start looking for seats in that range. If you’re replacing an old seat, it’s probably best to stick with the same height. But if you’re installing a new seat or trying a different style, there are a few things to keep in mind.

Taller toilets are becoming more popular, so if you have the room, a taller toilet seat (17 or 18 inches) might be more comfortable. Higher toilets are also easier to get on and off for people with limited mobility. However, taller seats can be more expensive and difficult to find.

If you have small children or are short yourself, a shorter seat (14 or 15 inches) might be better. Shorter seats can also make it easier to reach the ground if you have limited mobility. Just keep in mind that shorter seats might not be as comfortable for taller adults.

Other Factors To Consider

Aside from finding a toilet seat that will actually fit on your toilet, you need to take other factors into consideration as well. The type of toilet seat, the material, and the style are all important factors to think about. Toilet seats come in a variety of colors, so you can even make a bold statement with your seat if you want to.


Deciding on the right shape of toilet seat is primarily a matter of personal preference. However, there are a few factors that you may want to take into account when making your decision.

If you have a small bathroom, you may want to choose a round toilet seat. Round seats take up less space than elongated seats, so they can help make your bathroom feel larger. If you have young children, a round seat may also be easier for them to use.

If you have a standard-sized bathroom, you probably won’t have any trouble finding an elongated toilet seat to fit. Elongated seats are typically more comfortable than round seats, so they may be the better choice if you have the extra space.


There are a few things to consider when purchasing a new toilet seat. In addition to size, you’ll need to decide on the material. The most common materials are wood, plastic, and metal.

Wooden toilet seats are the most traditional and can be very elegant. They are also the most expensive and require the most care. Wooden seats must be sealed and varnished to protect them from moisture damage, and they should be dusted regularly with furniture polish.

Plastic toilet seats are less expensive than wooden seats and require less maintenance. They come in many different colors and styles, so you’re sure to find one that matches your décor. Plastic seats can crack or chip if they’re dropped, so they may not be the best choice if you have small children in your home.

Metal toilet seats are the most durable but can also be the coldest and least comfortable. Metal toilet seats are usually made of stainless steel or brass and come in a variety of finishes to match your fixtures.

Weight capacity

An important factor to consider when purchasing a toilet seat is the weight capacity. Most standard toilet seats have a weight capacity of 250 pounds. However, there are a number of toilet seats on the market that have a weight capacity of 400 pounds or more. These heavy-duty toilet seats are ideal for larger people or people who need a little extra stability when using the bathroom.