🛏 Mattress Size Calculator
Find the perfect mattress for your room — check clearance, compare dimensions, and plan your bedroom layout
| Mattress Size | Min Room Size | Comfortable Room | Sq Ft (Min) | 24" Side Clearance Each Side |
|---|---|---|---|---|
| Twin | 7' x 10' | 10' x 10' | 70 sq ft | Leaves 18" each side in 7' room |
| Twin XL | 7' x 10.5' | 10' x 12' | 73 sq ft | Leaves 18" each side in 7' room |
| Full | 9' x 10' | 10' x 12' | 90 sq ft | Leaves 21" each side in 9' room |
| Queen | 10' x 11' | 12' x 14' | 110 sq ft | Leaves 20" each side in 10' room |
| King | 12' x 12' | 14' x 16' | 144 sq ft | Leaves 22" each side in 12' room |
| California King | 12' x 12.5' | 14' x 18' | 150 sq ft | Leaves 24" each side in 12' room |
| Frame Style | Frame Rise | + 10" Mattress | + 12" Mattress | + 14" Mattress |
|---|---|---|---|---|
| Platform (floor) | 0 in | 10 in | 12 in | 14 in |
| Standard Frame | 7 in | 17 in | 19 in | 21 in |
| Tall Frame | 14 in | 24 in | 26 in | 28 in |
| Storage Frame | 18 in | 28 in | 30 in | 32 in |
| Location | Minimum | Comfortable | Ideal / ADA |
|---|---|---|---|
| Each side of bed | 18 in (46 cm) | 24 in (61 cm) | 36 in (91 cm) |
| Foot of bed | 24 in (61 cm) | 30 in (76 cm) | 36 in (91 cm) |
| Closet door swing | 24 in (61 cm) | 30 in (76 cm) | 36 in (91 cm) |
| Bedroom door clearance | 32 in (81 cm) | 36 in (91 cm) | 42 in (107 cm) |
| Dresser front clearance | 30 in (76 cm) | 36 in (91 cm) | 48 in (122 cm) |
| Above mattress to ceiling | 24 in (61 cm) | 36 in (91 cm) | 48 in (122 cm) |
| Mattress | Total Width | Width per Person (2) | Comparison |
|---|---|---|---|
| Full | 54 in (137 cm) | 27 in (69 cm) | Narrower than a single twin |
| Queen | 60 in (152 cm) | 30 in (76 cm) | Common minimum for couples |
| King | 76 in (193 cm) | 38 in (97 cm) | Same as a twin each person |
| California King | 72 in (183 cm) | 36 in (91 cm) | Slightly less wide, more legroom |
Election of the apt size for Mattress matters much more than many folks imagine. Queen Mattress types have 60 inches of width and 80 inches of length, and this is the favorite choice for pairs in typical bedrooms. Compared to full Mattress, it offers more space in both directions, what allows single sleepers to fully stretch during the night.
Twin Mattress belongs to the most small standard choices with 38 inches of width and 75 inches of length. Its a bit more long relative, the twin XL, reach 38 inches of width and 80 inches of length. Those extra five inches make it ideal for college rooms in schools.
How to Choose the Right Mattress Size
Also for long youngsters or adults with limited area, twin XL types work well. Interesting detail: two such Mattress types, laid together, form king.
Full Mattress, commonly called double, have 54 inches of width and 75 inches of legnth. For single sleepers, that wants more freedom to move, it answers perfectly. Although it measures only 54 inches, many pairs can on it sleep comfortably, especially if the partners are fairly small.
The name “double” truly points its target for two folks. Moreover, full bed is easier to transport than queen size, what commonly causes trouble.
Royal Mattress types reach 76 inches of width and 80 inches of length, giving the maximum space for pairs or even whole families. The California King differs a bit with 72 inches of width and 84 inches of length, so it is more narrow, but entirely a bit more thin then the usual king.
There is also the Alaska King. It ranks between the biggest usually available oversized Mattress types at 108 inches square. Here almost 9 feet in both directions, what involves almost half of many bedrooms.
Choices bigger than king usually requires special sheets, that costs more and requires more time for arrival.
While you compare sizes of Mattress types, mind the width and length, not the thickness. Standard bed sizes are fairly uniform, with few changes in inches. The thickness or height of Mattress adjusts according to the type and kind.
Height of Mattress does not relate to its quality, firmness or softness. For instance, 16-inch weight can be very rigid, while 8-inch version results very tender.
In lands with metric system, bed sizes differ from those in North America, so good to recall that. Mattress types from IKEA have also a bit different measures compared to other brands. Besides the size itself, thequality of materials and the build must affect every choice of Mattress, because each sleeper has his own needs.
