Mattress & Paper Dimensions Chart: Printable Size Reference
Buying sheets that swim on the mattress, ordering a bed frame that won't fit, or printing a document that comes out cropped — almost every size mistake comes from guessing instead of checking one chart. Mattress sizes look simple until you meet the two Kings: a standard King is 76 inches wide but a California King is narrower and longer, and mixing them up means returns and restocking fees. Paper has its own trap: US Letter and Legal sound interchangeable until a PDF prints half off the page, and A4 — the world standard — matches neither. This printable mattress and paper dimensions chart puts both worlds on one page: US mattress sizes from Twin to California King plus the paper sizes you'll actually print on, all in inches and millimeters. Check the table below before you buy or print, or keep the printed sheet where you plan projects.
Quick-Reference Table
The full data from this cheat sheet, right on the page.
| Item | Size | Inches (W × L) | Millimeters (W × L) |
|---|---|---|---|
| Twin Mattress | 38" × 75" | 965 × 1905 | |
| Twin XL Mattress | 38" × 80" | 965 × 2032 | |
| Full Mattress | 54" × 75" | 1372 × 1905 | |
| Queen Mattress | 60" × 80" | 1524 × 2032 | |
| King Mattress | 76" × 80" | 1930 × 2032 | |
| California King Mattress | 72" × 84" | 1829 × 2134 | |
| US Letter Paper | 8.5" × 11" | 216 × 279 | |
| US Legal Paper | 8.5" × 14" | 216 × 356 | |
| A4 Paper | 8.27" × 11.69" | 210 × 297 | |
| A3 Paper | 11.69" × 16.54" | 297 × 420 |
How to Use This Chart
Pin this chart where you work: it packs 10 entries and 4 columns (Item, Size, Inches (W × L), Millimeters (W × L)) into one printable page, built for quick lookups.
Scan down the Item column to your item, then read across for Size, Inches (W × L), Millimeters (W × L).
Example: for Twin Mattress, the chart gives Size of 38" × 75".
- Compare values down a single column to spot the pattern before you commit to a choice.
- When two rows look close, the last column usually breaks the tie.
- Print it once and keep it where you work — that's the whole point of a cheat sheet.
💡 Quick Tips
Measure the Frame Too: Mattress size is only half the story — frames and toppers add inches. Measure the full footprint before ordering sheets or a headboard.
A4 Is Not Letter: A4 paper is taller and narrower than US Letter. Printing an A4 document on Letter cuts the bottom margin; scale to fit or reformat.
Depth Matters: Deep-pocket sheets exist for mattresses 14 inches or thicker. Check your mattress depth before buying fitted sheets.
Frequently Asked Questions
What is the difference between King and California King?
A standard King is 76 x 80 inches — wider and squarer — while a California King is 72 x 84 inches, narrower and four inches longer. Taller sleepers usually prefer the Cal King; couples who want maximum width pick the standard King.
Is A4 paper the same size as US Letter?
No. A4 is 8.27 x 11.69 inches (210 x 297 mm) — taller and slightly narrower than US Letter's 8.5 x 11 inches. Printing across the two sizes without scaling can crop margins, so always check your paper size first.
What mattress size fits two adults comfortably?
A Queen (60 x 80 inches) is the most popular choice for couples and fits most bedrooms. Upgrade to a King (76 x 80) for real elbow room, or a California King (72 x 84) if either partner is over 6 feet tall.
Printable Sheet Preview
High-Contrast Layout
Download Your Free Printable Sheet
Download the printable PDF below. It is the same sheet shown in the preview above, ready to print on US Letter or A4 — open it and choose Print, with Scale set to Fit to Page.
💡 Pro Printing Tip: In your printer settings, set Scale to “Fit to Printable Area” and enable “Background Graphics” for color headers.