Mattress Size Guide & Bed Size Calculator
Find the perfect mattress size for your bedroom. Compare bed dimensions in inches and centimeters.
Enter your room dimensions to see which mattress sizes fit
Mattress Sizes Comparison
| Size | Dimensions |
|---|---|
| Twin / Single | 38 × 75 in |
| Twin XL | 38 × 80 in |
| Full / Double | 54 × 75 in |
| Queen | 60 × 80 in |
| King | 76 × 80 in |
| California King | 72 × 84 in |
💡 Choosing the Right Mattress Size
Room Clearance
Leave at least 24 inches (60 cm) on each side of the bed for walking space.
Height Matters
If you're over 6'2" (188 cm), consider Twin XL, Queen, King, or California King for extra length.
Couples Need Space
Each person should have at least 30 inches (76 cm) of width for comfortable sleep.
Consider Future Needs
If you're planning to share your bed with a partner or pets, size up.
🛏️ Factors to Consider
Sleep Position
Side and stomach sleepers typically need more width than back sleepers.
Movement During Sleep
Active sleepers benefit from larger mattresses to avoid disturbing their partner.
Room Layout
Account for nightstands, dressers, and walking paths around the bed.
Budget
Larger mattresses cost more, including sheets, mattress protectors, and bed frames.
🌍 International Bed Sizes
Mattress sizes vary by country. Here's how US sizes compare to other regions:
UK
- Single: 90 × 190 cm
- Double: 135 × 190 cm
- King: 150 × 200 cm
- Super King: 180 × 200 cm
Europe (EU)
- Single: 90 × 200 cm
- Double: 140 × 200 cm
- Queen: 160 × 200 cm
- King: 180 × 200 cm
Asia (Japan/Korea)
- Single: 97 × 195 cm
- Double: 140 × 195 cm
- Semi-Double: 120 × 195 cm
- Queen: 160 × 195 cm
- King: 180 × 195 cm
Mattress dimensions may vary slightly between manufacturers. Always verify exact measurements before purchasing. This guide provides standard US mattress sizes.
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