Is a 48 × 74 cm pillowcase compatible with a 50 × 70 cm pillow?

A pillowcase and a pillow are not measured the same way, and that is where the confusion starts.

A pillowcase is a sewn rectangle of fabric, measured flat and empty. “48 × 74” therefore describes a flat surface.

A pillow is a filled envelope. “50 × 70” describes its shell laid flat, before filling. Once stuffed, the pillow gains volume, and that volume is taken from the sides: the edges rise, the flat usable surface becomes smaller than 50 × 70, while the girth of the object increases.

In other words, a soft, thin 50 × 70 pillow behaves like a rectangle close to 50 × 70. The same pillow, firm and 15 cm thick, behaves like a distinctly wider object to wrap.

The difference is not symmetrical, and the two dimensions do not carry the same risk.

Two centimetres less in width are not an obstacle in themselves: pillowcase fabric is not stretched to the millimetre, and a soft pillow compresses slightly. They become one when the pillow is already thick and firm, because thickness eats into width.

All it takes is a tape measure, and it replaces all guesswork.

1. Remove the current case and lay the pillow flat.
2. Measure the real width, seam to seam, without pressing down. Write it down.
3. Measure the thickness at the highest point, ruler held vertically against the edge.
4. Add them up: measured width + thickness. That is roughly what the case has to wrap around.

How to read the result:

These thresholds are practical markers, not a standard: they depend on how soft the filling is. A feather pillow compresses far more readily than memory foam at equal dimensions.

There are cases where 48 × 74 is the wrong choice, and it is better to say so plainly.

• Memory foam or ergonomic pillows. These fillings are firm and do not compress. The thickness, often 12 to 15 cm, is paid for in full out of the width.
• Firm pillows more than 14 cm thick, whatever the filling.
• Pillows genuinely wider than 50 cm. Some European formats reach 60 or 65 cm in width and are a different matter entirely.
• You want a perfectly taut finish. On a soft 50 × 70, a 48 × 74 gives a slightly enveloping result with a little fabric at the end. If you want a perfectly flat surface, measure first.

In those situations, the square 60 × 60 cm format suits a square pillow, but not a thick rectangular one. There is no universal solution, and nobody should promise you one.

On a 50 × 70 pillow with soft synthetic filling, 8 to 10 cm thick — the most common case in French bedrooms — a 48 × 74 pillowcase goes on effortlessly. The fabric follows the pillow, the four extra centimetres of length form a slight fold at the end, and the sleeping surface stays smooth.

That behaviour is what matters for a silk pillowcase: the area where your cheek and hair rest has to stay flat and free of folds. Two centimetres less in width change nothing there, as long as the pillow is not compressed.

Will the case slip if it is longer than the pillow?

No, the extra length folds under the pillow or stays at the end. What makes a pillowcase slip is excess width, not length.

Can I use a 48 × 74 case on a 40 × 60 pillow?

You can, but the pillow will float inside it: eight centimetres too much in width and fourteen in length is a lot. The fabric will crease.

Is 48 × 74 an unusual size?

It is less widespread than 50 × 70 in ordinary French bed linen, but it appears regularly in silk textiles. It remains compatible with the large majority of standard rectangular pillows.

How do I measure without a tape measure?

An A4 sheet is 21 × 29.7 cm. Two sheets side by side across their width make 42 cm, three make 63 cm. That is enough to place your pillow between the markers in the table above.

What if I get it wrong?

You have fourteen days from delivery to withdraw, with no reason required. The conditions are in our refund policy.

This case is the most common, but the method works for any difference in dimensions. The full reasoning, with all the French formats, is in our guide to pillowcase sizes.