What Is The Size Of A King Size Pillow Case

The answer to the question of what is the size of a king size pillow case is 20 by 36 inches. It will be useful to familiarize yourself with pillowcase sizing to ensure that you’ll get the correct fit for your pillow. Otherwise, getting something too big will make the pillow loose, and you’ll just waste the cover if it’s too small. 

If you’re not sure if your pillow is king size, you must measure it correctly. The pillow dimensions will make pillowcase and pillow insert buying easier. You can also read this article to learn more about sizing. 

What Is The Size Of A King Size Pillow Case


How Big Is A King Size Pillowcase?

The dimensions of a king size pillowcase are 20 by 36 inches for a snug fit, but there are also 21 by 37-inch king size pillowcases. Either size provides the perfect fit on a king size pillow , but do note that manufacturers may have a different king size pillowcase to fit their king size pillow. Like any pillow type, some brands might have deviations with these measurements, so be sure to check your pillow tag before buying the cover for it to avoid a hassle in the fitting. 

You can expect that a king size pillowcase is the biggest among other sizes, such as standard and queen. Therefore, you can only use it on another king size pillow or make some adjustments if you have to cover a different pillow size. How big are other pillowcases?


How big is a standard size pillowcase?

A standard size pillowcase typically measures 20 by 26 inches. You can use it on standard size pillows as long as the manufacturer is true to their products’ sizes. If your pillowcase has a bit of extra material, you might also be able to cover a queen size pillow with a standard size pillowcase. 


How big is a queen size pillowcase?

If you still find standard size pillows too limiting, you can opt for queen size pillows. They use a pillowcase with the dimensions 20 by 30 inches, which is slightly smaller than king size pillows. You can also adjust this pillowcase for other pillow types as long as the finish isn’t too loose. 

The emphasis is necessary that these dimensions are similar to the sizing of their respective pillows. Therefore, you can also consider allowing an inch of allowance if you find the fitting too snug. You have to account for the pillow material and how plump it gets to ensure that you’re getting a good fit.


What Is The Size Of Specialty Pillowcases?

Besides your usual bed pillowcases that come in king, queen, and standard sizes, other pillow types use specialty pillowcases. It will be useful to measure your pillow’s width and length to find the best-fitting pillowcase beforehand. Furthermore, you can allocate an allowance in the material according to the pillow type. 


Throw pillowcase

Throw pillows come in different sizes and shapes, but the most common ones measure 20 by 20 inches. You can expect different sizes, and they will also vary in the textile they use. One can even say that throw pillowcases offer the most variety, among other pillow covers being decorative cases. 


Euro pillowcase

Another popular decorative pillow is the Euro pillow. There are also different sizes for Euro pillow covers since Euro pillows are square pillows that also come in various dimensions. However, the most common one measures 26 by 26 inches. 


Travel pillowcase

Travel pillows are usually C-shaped pillows, but there are also rectangular ones. There is also no definite measurement for travel pillowcases, but you can find covers with dimensions of 12 by 17 inches. The cover itself is also typically non-removable. 


Types Of Pillowcase Materials

Besides the different sizes, another significant factor when choosing a pillowcase is the material it uses. After all, you’re making direct contact with it, so it should feel nice to touch. You also want it not to leave crease marks on your face (we’ve all been there.)



The most common pillowcase is cotton. This material is breathable and absorbent, so it’s ideal for a comfortable sleep. However, cotton can bundle up, and it can cause markings on the skin when lied on for an extended period. 


Satin and silk

When it comes to luxury, satin and silk pillow covers top the list. The smooth feel won’t leave creases on your skin. However, velvety materials like these are tricky to wash and maintain. 



If you’re on a budget, you can consider nylon pillowcases. The good quality ones can feel as good as satin. However, the drawback with this material is it doesn’t provide good airflow. 



Besides the pillow itself, you must also know the sizing of different pillowcases. For example, what is the size of a king size pillow case? This cover typically measures 20 by 36 inches like the pillow itself, but some brands also offer 21 by 37-inch pillowcases for allowance. 

You must get the best-fitting king size pillowcase for your pillow so that it’s not too tight or too loose. Your king size pillow itself might also have a different measurement from these common sizes. Overall, it’s best to check your pillow tag before buying a pillowcase, regardless of its size name. 

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