A king-size bed bought in Dublin is 43 cm narrower than one bought in New York, despite sharing the same name. This guide breaks down the exact measurements for king beds in the UK, Ireland, Europe, and the US.

4 related posts

Standard UK King Size: 150 cm × 200 cm (5’0″ × 6’6″) ·
Irish King Size: 150 cm × 200 cm (5’0″ × 6’6″) ·
US King Size: 193 cm × 203 cm (76″ × 80″) ·
Super King Size (UK): 183 cm × 200 cm (6’0″ × 6’6″) ·
European King (180×200): 180 cm × 200 cm

Quick snapshot

1Ireland & UK King
2US King
3European King (180×200)
4Super King (UK/Ireland)
  • 183 cm × 200 cm (Nectar Sleep (bed manufacturer & retailer))
  • Extra 33 cm width over king (Nectar Sleep (bed manufacturer & retailer))
  • Ideal for couples wanting more space (Nectar Sleep (bed manufacturer & retailer))

Six size categories, one pattern: the same label can differ by more than 40 cm in width depending on where you buy.

Size Dimensions (cm) Dimensions (feet/inches)
UK King Size 150 × 200 5’0″ × 6’6″
Irish King Size 150 × 200 5’0″ × 6’6″
US King Size 193 × 203 76″ × 80″
European King (180×200) 180 × 200 5’11” × 6’6″
UK Super King Size 183 × 200 6’0″ × 6’6″
Queen Size (Europe) 160 × 200 5’3″ × 6’6″

The pattern: a UK/Irish king is the narrowest option; a US king is the widest and longest.

What size is a king bed in Ireland?

What is an Irish king bed?

  • Irish king size bed measures 150 cm × 200 cm (5’0″ × 6’6″) — identical to the UK king size (The Sleep Shop Ireland (Irish mattress retailer)).
  • Irish bed sizes follow the same manufacturing standards as UK sizes (Sheepbridge Sofas and Beds (UK bed retailer)).
  • Commonly recommended for couples in Ireland.
The upshot

Irish shoppers can buy UK bedding without worry — the dimensions are a perfect match. But anyone importing a US “king” will need a completely different frame and bedding set.

How does the Irish king compare to UK king?

  • They are the same: 150 × 200 cm. No difference in width or length.
  • This contrasts with the US king (193 × 203 cm), which is 43 cm wider and 3 cm longer (Nectar Sleep (bed manufacturer & retailer)).
  • A US queen (152 × 203 cm) is nearly identical in width to an Irish king but 3 cm longer.

The implication: if you’re moving between Ireland and the US, check the bed size before buying any mattress or frame. The Irish king is effectively a US queen plus a few centimeters of width.

What is the size of a king-size bed?

How big is a king size mattress?

  • UK king: 150 × 200 cm. That’s about 59×79 inches — the most common “king” in Ireland and the UK (Nectar Sleep (bed manufacturer & retailer)).
  • US king: 193 × 203 cm (76×80 inches) — roughly 28% more surface area than a UK king.
  • European king: often 180 × 200 cm (71×79 inches), widely used in mainland Europe (Get Laid Beds (UK bed manufacturer)).
The catch

In Europe, terms like “king” and “queen” are not standardized — many retailers simply list widths in centimeters (FloBeds (specialist mattress manufacturer)). Always check the exact cm before ordering.

King size dimensions in cm

  • UK / Ireland king: 150 × 200 cm
  • US king: 193 × 203 cm
  • European king (180×200): 180 × 200 cm
  • UK super king: 183 × 200 cm (Nectar Sleep (bed manufacturer & retailer))

The pattern: UK/Irish king is the narrowest of the four; US king is both widest and longest.

King size dimensions in feet

  • UK / Ireland king: 5’0″ × 6’6″
  • US king: 6’4″ × 6’8″
  • European king (180×200): 5’11” × 6’6″
  • UK super king: 6’0″ × 6’6″

What this means: a person 6 feet tall fits lengthwise on any of these, but the US king gives 4 extra inches of length compared to a UK king.

What size bed is 180×200 cm?

Is 240×220 cm king size?

  • 240 × 220 cm is larger than any standard king. It is often considered a “super king” or “emperor” size in some Asian markets, but not standard in the UK, Ireland, or Europe.
  • Standard UK dimensions top out at the emperor size: 200 × 200 cm (Beaumont Brown (UK bespoke bed maker)).

Is 160×200 king or queen?

  • 160 × 200 cm is a queen size in Europe, not king (The Sleep Shop Ireland (Irish mattress retailer)).
  • This is 10 cm wider than a UK king and 20 cm narrower than a European king (180×200).

What size bed is 7ft by 6ft?

  • 7 ft × 6 ft (213 × 183 cm) is not a standard UK or Irish size. The closest standard is the UK super king (183 × 200 cm) or a custom order.
  • Absolute sizing: 213 cm length exceeds every standard king size in Ireland and the UK.

The trade-off: metric-based European sizes (180×200, 160×200) dominate continental markets, while Ireland and the UK follow their own distinct imperial-derived standards.

What duvet or bedding size will fit my mattress?

Which duvet size for a king bed?

  • For a UK/Irish king (150×200 cm): a duvet cover sized 230×220 cm is standard (Get Laid Beds (UK bed manufacturer)).
  • For a US king (193×203 cm): US king duvet covers (approx 259×229 cm) are needed.
  • For a European king (180×200 cm): 240×220 cm duvets are common.
Why this matters

Buying a duvet from UK retailers for a European king bed will leave you 10 cm short on each side. Always match the duvet to the mattress region, not the label.

What size fitted sheet fits a king mattress?

  • UK king fitted sheet: purpose-made for 150×200 cm, typically with a depth of 25-35 cm to accommodate modern mattresses.
  • US king fitted sheet: designed for 193×203 cm — will not fit a UK king frame.
  • Fitted sheet depth must match mattress thickness (check pocket depth before buying).

Steps to measure your bed for bedding:

  1. Measure the mattress width and length in centimeters (not the frame).
  2. Measure the mattress depth (thickness) from top to bottom.
  3. Look for bedding labelled with exact cm dimensions — avoid generic “king” tags.
  4. Check the pocket depth of fitted sheets against your mattress depth.
  5. If shopping online, filter by region (UK/Ireland vs US vs Europe).

The pattern: many returns happen because shoppers assume all “king” bedding is interchangeable. It isn’t.

What size is a super king size bed in feet?

Super king dimensions in cm

  • UK super king: 183 × 200 cm (Nectar Sleep (bed manufacturer & retailer)).
  • Irish super king: same — 183 × 200 cm (The Sleep Shop Ireland (Irish mattress retailer)).
  • US king (193×203 cm) is slightly wider and longer than a UK super king.

Super king vs king comparison

Feature UK King UK Super King
Width 150 cm (5’0″) 183 cm (6’0″)
Length 200 cm (6’6″) 200 cm (6’6″)
Extra width vs king — +33 cm (+1’0″)
Ideal for Standard couples Couples who want more space or larger framed sleepers

The implication: upgrading from king to super king adds a foot of width but keeps the same length — perfect if you feel cramped, but you’ll need a larger bed frame and room.

Bottom line: UK/Irish king (150×200 cm) is the narrowest among major king types. US king (193×203 cm) offers the most space. European king (180×200 cm) sits in between. Couples in Ireland and the UK who want room to spread out should consider super king (183×200 cm). Importers from the US must buy region-specific bedding.
Additional sources

getlaidbeds.co.uk, dochara.com

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Frequently asked questions

What is the difference between a king and a super king bed?

UK king is 150×200 cm; UK super king is 183×200 cm. The super king is 33 cm wider, providing more side-to-side space while keeping the same length.

What size fitted sheet fits a UK king bed?

A fitted sheet designed for 150×200 cm mattresses, with pocket depth matching your mattress thickness (typically 25-35 cm).

Is a 180×200 cm bed a king or queen?

In Europe, 180×200 cm is commonly called a king size. In the UK/Ireland, it’s larger than a king (150×200) and close to a super king (183×200). Always check the exact cm.

What are the dimensions of a king bed in feet?

UK/Irish king: 5’0″ × 6’6″. US king: 6’4″ × 6’8″. European king (180×200): 5’11” × 6’6″. UK super king: 6’0″ × 6’6″.

Can I use US king bedding on a UK king bed?

No. US king mattresses (193×203 cm) are much wider and longer than UK kings (150×200 cm). Bedding will be too large and loose.

What is the standard mattress thickness for a king bed?

Most modern king mattresses are 25-35 cm thick, but thickness varies by brand and type (pocket spring, memory foam, etc.). Always measure before buying fitted sheets.

How do I measure my bed to choose the right duvet?

Measure the mattress width and length. For a UK king (150×200 cm), choose a 230×220 cm duvet cover. For other sizes, pick a duvet at least 40-50 cm wider than the mattress.

Which bed size is best for couples in Ireland?

For most couples, a standard king (150×200 cm) works. If both partners are tall or prefer extra space, consider a super king (183×200 cm).