Pillow sizes

Five common sizes, which pillows fit which bed, and why one maker's numbers can differ.

Short answer: a sleep-research guide lists four common pillow sizes: standard 20 × 26 in, queen 20 × 30 in, king 20 × 36 in and Euro 26 × 26 in.^{[1 · Nov 12, 2026]} A body pillow typically measures 20 × 54 in.^{[1 · Nov 12, 2026]} One maker's memory foam pillows come in Standard/Queen at 18 × 28 in and King at 18 × 34 in,² so check the listed dimensions of the pillow and the pillowcase before you buy.

A mother and her teenager snap a flat sheet over a queen bed while a cat watches from a bench at the foot of the bed

Common pillow sizes

Pillow	Inches	Centimeters	Notes from the source
Standard	20 × 26 in^{[1 · Nov 12, 2026]}	51 × 66 cm	The smallest common size; one fits a twin, two fit a full or queen.^{[1 · Nov 12, 2026]}
Queen	20 × 30 in^{[1 · Nov 12, 2026]}	51 × 76 cm	Same width as standard, a few inches longer; two fit a queen bed.^{[1 · Nov 12, 2026]}
King	20 × 36 in^{[1 · Nov 12, 2026]}	51 × 91 cm	The largest of the four common sizes; two fit a king or California king.^{[1 · Nov 12, 2026]}
Euro	26 × 26 in^{[1 · Nov 12, 2026]}	66 × 66 cm	A square pillow used as a backrest, for support or for decoration.^{[1 · Nov 12, 2026]}
Body	20 × 54 in, typical^{[1 · Nov 12, 2026]}	51 × 137 cm	A specialty size, outside the four common sizes.^{[1 · Nov 12, 2026]}

Centimeters are converted at exactly 2.54 cm per inch and rounded to the nearest centimetre.^{[3 · Nov 12, 2026]}

Which pillows fit which bed

On a twin, one standard pillow "fits comfortably across" the bed, and you are "unlikely to fit more than one pillow across the width."^{[1 · Nov 12, 2026]}
Two standard pillows fit well on a full or queen; two queen pillows "fit perfectly across a queen bed."^{[1 · Nov 12, 2026]}
Two king pillows fit well on a king or California king. Two standard pillows can look small on a king.^{[1 · Nov 12, 2026]}
The three rectangular sizes share a 20 in width; only the length changes.^{[1 · Nov 12, 2026]}

Pillowcases

Standard pillowcases can be used on a queen pillow, "especially if you want a slightly higher loft or firmer feel," and households that have both sizes "can use the pillowcases interchangeably."^{[1 · Nov 12, 2026]} A king pillow "only fits into king pillowcases," so you need king cases if you don't already have them.^{[1 · Nov 12, 2026]} A queen pillow in a standard case can feel like "too much pillow for stomach sleepers."^{[1 · Nov 12, 2026]}

One maker's sizes, for comparison

Pillow names are not a standard the way mattress sizes are. One maker lists only two sizes for its memory foam pillow: Standard/Queen 18 × 28 in and King 18 × 34 in.² Those are narrower and a different length than the 20 × 26 in standard and 20 × 36 in king in the chart above. Compare the pillow's listed size with the pillowcase, not just the size name. For sheets that go with the bed, see sheet sizes. Still choosing a mattress? See what size mattress do I need.

Questions people ask

What are the standard pillow sizes?

A sleep-research guide lists standard 20 × 26 in, queen 20 × 30 in, king 20 × 36 in and Euro 26 × 26 in. A body pillow typically measures 20 × 54 in.

How many pillows fit on a queen bed?

Two standard pillows fit well on a full or queen, and two queen pillows fit perfectly across a queen bed.

Can I put a queen pillow in a standard pillowcase?

Yes. The same source says standard cases can be used on a queen pillow and may increase loft and firmness. A king pillow needs a king case.

Sources: 1. Sleep Foundation, Pillow sizes & dimensions. 2. Layla Sleep help, What are the different sizes of the Layla Memory Foam Pillow?. 3. NIST, SI units: length. Checked Nov 12, 2026. Trademarks belong to their owners; figures are restated in our own words and tables, not reproduced.