MEASURE · COMPARE · MAKE SPACE

Bed sizes, clearly compared.

Start with the six common US mattress sizes in the table.

Published by BedFit Atlas · Updated 2026-09-18

Dimension chart

US · Nominal bed dimensions
Size	Width (in)	Length (in)	Area (sq ft)
TwinReviewed 2026-09-18	38	75	19.8
Twin XLReviewed 2026-09-18	38	80	21.1
FullReviewed 2026-09-18	54	75	28.1
QueenReviewed 2026-09-18	60	80	33.3
KingReviewed 2026-09-18	76	80	42.2
California KingReviewed 2026-09-18	72	84	42

AT THE SAME SCALE

See the footprint

3 of 3 selected. Clear one to compare another.

1. Queen
2. King
3. California King

Hover over or focus a footprint to inspect its dimensions.

Leave room around it.

Start with the six common US mattress sizes in the table. These are selected nominal dimensions from the cited profile, not measurements of your own mattress or its frame. Switch between inches and centimetres or select up to three sizes to compare their footprints at the same scale. A display-unit change does not convert a US size label into a different country’s sizing system. To check a room, enter its clear dimensions, the outside frame dimensions when known, nightstands and the walking space you want to keep. The calculator compares two rectangular orientations and keeps your measurements in the browser. Source references identify the profile used for the numbers; manufacturers can publish different dimensions under similar names. Check the actual product before ordering. Report a suspected error through the correction contact with the page and a public source so every dependent comparison can be reviewed.

Check both orientations, nightstands and the walking space you want.

Check your room

Measurements stay in your browser.

Sources and review dates

Data reviewed 2026-09-18.

Bed Sizes and Mattress Dimensions: Guide + Comparison Chart — Purple Purple, US mattress dimensions guide; selected nominal reference values, not product measurements or universal tolerances.
Published room-fit geometry, version 1 — Bed Dimensions