Bed Size Chart
The Bed Size Chart is a sizing reference tool covering bed size chart, mattress size chart, bed sizes chart, twin full queen king dimensions. Use the chart below to look up values instantly. Printable and downloadable versions are available on this page.
Bed Size Comparison Tool
Enter your room dimensions to see which bed sizes fit with clearance space, with a visual floor plan and side-by-side measurements.
US Bed Size Chart
US Standard Mattress and Bed Sizes
| Bed Size Name | Width (inches) | Length (inches) | Width (cm) | Length (cm) |
|---|---|---|---|---|
| Twin | 38" | 75" | 96.5 cm | 190.5 cm |
| Twin XL | 38" | 80" | 96.5 cm | 203.2 cm |
| Full (Double) | 54" | 75" | 137.2 cm | 190.5 cm |
| Full XL | 54" | 80" | 137.2 cm | 203.2 cm |
| Queen Most Popular | 60" | 80" | 152.4 cm | 203.2 cm |
| King | 76" | 80" | 193.0 cm | 203.2 cm |
| California King | 72" | 84" | 182.9 cm | 213.4 cm |
Source: US mattress industry standard dimensions
International Bed Size Chart
Bed size names and dimensions vary significantly between the US, UK, Europe, and Australia — always confirm dimensions in cm or inches before purchasing internationally.
International Bed Size Comparison
| Size Name | Country / Region | Width (inches) | Length (inches) | Closest US Equivalent |
|---|---|---|---|---|
| Single | UK | 36" | 75" | Twin (smaller) |
| Double | UK | 54" | 75" | Full |
| King | UK | 60" | 78" | Queen (slightly shorter) |
| Super King | UK | 72" | 78" | California King (slightly shorter) |
| Single (EU) | Europe | 35.4" | 78.7" | Between US Twin and Twin XL |
| Double (EU) | Europe | 55.1" | 78.7" | Between Full and Queen |
| Queen (EU) | Europe | 63.0" | 78.7" | Close to US Queen |
| King (EU) | Europe | 70.9" | 78.7" | Between US Queen and King |
| Single | Australia | 36.2" | 74.8" | Twin (slightly smaller) |
| Double | Australia | 53.2" | 74.8" | Full (slightly smaller) |
| Queen | Australia | 59.8" | 79.5" | Very close to US Queen |
| King | Australia | 71.9" | 79.5" | Close to US California King |
Sources: UK Sleep Council, European mattress industry standards, Sleep Health Foundation Australia
Bed Size Guide — Which Size Do You Need?
Bed Size Recommendation Guide
| Bed Size | Best For | Min Room Size | Notes |
|---|---|---|---|
| Twin | One child or teenager | 7 × 10 ft | Standard for bunk beds and daybeds. Tight for adults over 5'10". |
| Twin XL | Single adult in a smaller room or tall single sleeper | 8 × 10 ft | 5 inches longer than Twin — standard for college dorms and studio apartments. |
| Full (Double) | Single adult who moves around or two people in a tight space | 9 × 10 ft | Only 16 inches wider than a Twin — narrow for two adults. |
| Queen Most Popular | Couples or single adults who want extra room | 10 × 10 ft | Most popular mattress size in the US. Good compromise of space and room footprint. |
| King | Couples who want maximum sleeping space or those with pets or children sharing the bed | 12 × 12 ft | As wide as two Twin XLs side by side — the same sheets work. |
| California King | Tall sleepers above 6'2" who want extra length | 12 × 12 ft | 4 inches longer but 4 inches narrower than a standard King. King and Cal King sheets are NOT interchangeable. |
Mattress Shopping Tips
- ✓ Measure your bedroom before choosing a size. Leave at least 24 to 30 inches of clearance on each side of the bed for comfortable movement and making the bed.
- ✓ Check the mattress depth (thickness) before buying sheets. Standard mattresses are 9 to 11 inches deep. Many modern memory foam and hybrid mattresses are 12 to 16 inches deep and require deep-pocket fitted sheets.
- ✓ King sheets and California King sheets are not interchangeable — King is wider while Cal King is longer. Always confirm sheet dimensions before purchasing.
- ✓ Box spring or foundation height adds to the total bed height. Add the mattress thickness plus foundation height to confirm the bed will be comfortable to get in and out of.
- ✓ Bed frames are typically sold to match standard mattress sizes. Measure the interior frame dimensions rather than the outer dimensions when verifying fit.
Bed Size Comparison Tool
Enter your room dimensions to see which bed sizes fit with clearance space, with a to-scale floor plan and side-by-side measurements.
Frequently Asked Questions
What is the difference between a King and California King mattress?
A standard King is 76 × 80 inches — wider and shorter. A California King is 72 × 84 inches — narrower but 4 inches longer. Choose California King if you are above 6'2" tall and need the extra length.
What size is a double bed?
A double bed is the same as a Full and measures 54 × 75 inches in the US. In the UK a double is 54 × 75 inches — the same width but the US Full and UK Double are effectively the same.
What is the most popular bed size in the US?
The Queen is the most popular mattress size in the US at 60 × 80 inches. It offers a good balance of sleeping space and room footprint for couples and single adults.
Will a UK King size fit a US King bed frame?
No — a UK King is 60 × 78 inches while a US King is 76 × 80 inches. They are significantly different sizes and will not fit each other's bed frames or sheets.
What size bed fits in a 10 × 10 room?
A Queen size bed (60 × 80 inches) fits in a 10 × 10 room but will leave very limited clearance around the sides. A Full (54 × 75 inches) gives slightly more walking space in a small room.
How much bigger is a Queen than a Full?
A Queen is 6 inches wider (60 vs 54 inches) and 5 inches longer (80 vs 75 inches) than a Full. That extra 6 inches of width equals only 3 additional inches per person when two people share the bed.
What are standard sheet sizes?
Fitted sheet dimensions match the standard mattress sizes in the chart above. Always check the pocket depth — standard sheets fit mattresses up to 12 inches deep and deep-pocket sheets fit up to 15 to 18 inches deep.
Is a Twin XL the same as a Full?
No — a Twin XL is 38 × 80 inches while a Full is 54 × 75 inches. The Twin XL is significantly narrower (by 16 inches) but 5 inches longer than a Full.