European Mattress Sizes: Converting to US Standard Sizes

Why European and US Mattress Sizes Don't Match

European mattresses are measured in centimeters following ISO 1130 standards adopted in the 1960s. US mattresses follow imperial sizing that predates international standardization. The result: a European mattress will almost never drop into a US bed frame without gaps, overhangs, or custom work.

The fundamental mismatch is compounded by length. European mattresses are standardized at 200cm (78.7in) long, while US queen and king mattresses are 80 inches long. That 1.3-inch difference causes fitted sheets to slip and slatted bases to leave unsupported zones.

Complete European-to-US Size Conversion Chart

Country-Specific Variations Within Europe

The table above covers the most common sizes. Several countries add their own standards:

• IKEA sizing (global): IKEA sells mattresses sized slightly differently from both EU and US standards. Their "IKEA double" is 140x200cm and their sheets are labeled in both cm and inches. If you buy a mattress with an IKEA frame, use IKEA sheets only.
• UK sizing: The United Kingdom uses its own Imperial-derived system. A UK king (5ft x 6ft 6in / 150x200cm) is narrower than a US king. British bed frames are not interchangeable with either EU or US frames.
• Germany: Two-mattress systems are standard -- couples use two 90x200cm mattresses side-by-side in a shared frame. This affects headboard width and base compatibility.

Bringing a European Mattress to the US

If you are relocating from Europe, the practical options are:

1. Custom frame order: Several US woodworking studios make custom platform frames to metric dimensions. Budget $400-$900 for a custom 160x200cm frame.
2. Sell and replace: For most people, selling the European mattress locally and buying a US-standard mattress on arrival is more cost-effective than international shipping ($600-$1,800 for a single mattress).
3. Adaptable base: Adjustable slat bases offer some width flexibility. A 160x200cm EU queen will sit on a US queen base with a small gap and a slight length overhang.

For more on what to look for when buying a new mattress in the US, see our guide to mattress construction and layers and our how to avoid mattress regret guide.

Bedding and Sheet Compatibility

Fitted sheets are the biggest practical issue. A 160x200cm EU queen mattress requires fitted sheets with a length of at least 79 inches and a width of at least 63 inches. Standard US queen fitted sheets (60x80in) are too narrow by 3 inches. US king sheets (76x80in) will be too wide but close on length. Order from European linen suppliers or IKEA for the most accurate fit.

For sleep quality considerations beyond size, see our sleep sanctuary setup guide.

Frequently Asked Questions

What is a European king size in US measurements?

A European king is typically 200x200cm (79x79 inches), which falls between a US king (76x80in) and a California king (72x84in). No US-standard frame fits it exactly.

Do European mattresses fit US bed frames?

Rarely without modification. The most common mismatch is a European double (140x200cm / 55x79in) versus a US full/double (54x75in). Width is close but length is 4 inches longer.

Can I use European bedding on a US mattress?

Yes for fitted sheets if measurements overlap. Standard European duvet covers (200x200cm) work on a US king but drape differently. IKEA bedding, sold in both markets, uses EU sizing.

What is the most common European mattress size?

The 160x200cm (63x79in) is dominant in Germany, Austria, and the Netherlands. It has no direct US equivalent -- it sits between a US queen (60x80in) and a US king (76x80in).

Is a European single bed the same as a US twin?

Close but not identical. A European single is 90x200cm (35.5x79in); a US twin is 38x75in. The European version is 4 inches narrower and 4 inches longer.