---
title: "US Mattress Sizes vs UK"
description: "US Twin, Full, Queen, King and California King sizes in cm with UK comparison notes — plain cross-border guide."
url: "https://bedguide.co.uk/sizing/us-mattress-sizes/"
category: "sizing"
primary_entity: "US mattress sizes"
date_published: 2026-08-03
date_modified: 2026-08-03
---

# US Mattress Sizes vs UK

> US mattress names do not match UK footprints. Typical sizes include Twin at about 97 × 191 cm, Full 137 × 191 cm, Queen 152 × 203 cm and King 193 × 203 cm. A US Queen is near UK King width but longer. A US King is wider than a UK Super King. Compare centimetres, not names alone.

## Dimensions

| Size name | Width (cm) | Length (cm) | Width (in) | Length (in) |
| --- | --- | --- | --- | --- |
| Twin | 97 | 191 | 38 | 75 |
| Twin XL | 97 | 203 | 38 | 80 |
| Full (Double) | 137 | 191 | 54 | 75 |
| Queen | 152 | 203 | 60 | 80 |
| King | 193 | 203 | 76 | 80 |
| California King | 183 | 213 | 72 | 84 |

## Name mix-ups that cause returns

| US name | Typical cm | Nearest UK name | UK typical cm |
| --- | --- | --- | --- |
| Twin | 97 × 191 | Single | 90 × 190 |
| Full | 137 × 191 | Double | 135 × 190 |
| Queen | 152 × 203 | King | 150 × 200 |
| King | 193 × 203 | Super King | 180 × 200 |
| California King | 183 × 213 | (no exact UK twin) | — |

## Related BedGuide entries

- [UK standard sizes](/sizing/uk-standard-bed-sizes)
- [UK vs EU sizes](/sizing/uk-vs-eu-sizes)
- [UK King vs Super King](/compare/uk-king-vs-uk-super-king)

## Frequently asked questions

### Is a US Queen the same as a UK King?

Close in width but not identical. A US Queen is about 152 × 203 cm. A UK King is typically 150 × 200 cm. Sheets and frames labelled for one market may not fit the other cleanly.

### Is a US King bigger than a UK Super King?

Yes in width. A US King is about 193 × 203 cm. A UK Super King is typically 180 × 200 cm. California King trades some width for extra length.

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Source: https://bedguide.co.uk/sizing/us-mattress-sizes/ · BedGuide — educational encyclopedia, no affiliate commission. Facts checked against official sources where possible; see https://bedguide.co.uk/editorial-policy. Report an error: https://bedguide.co.uk/corrections.