Mattress Size Calculator
Find the perfect mattress size based on your height, sleeping preferences, and room dimensions. Our calculator provides personalized recommendations with international size conversions.
Recommended Mattress Size
Complete Mattress Size Chart
Compare all standard mattress sizes and their dimensions. Highlighted rows show sizes that match your requirements.
| Bed Size | Dimensions (inches) | Dimensions (cm) | Suitable For |
|---|
How to Choose the Right Mattress Size
Height Considerations
Your mattress should be at least 6 inches longer than your height for comfortable sleep. Taller individuals may prefer even more length for optimal comfort.
Sleeping Partners
Couples should consider width carefully. A queen provides 30 inches per person, while a king offers 38 inches each. Consider your sleep movements and personal space preferences.
Room Size Guidelines
Ensure at least 24 inches of walking space around your bed. Measure your room carefully and consider other furniture placement before making your final decision.
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Why Mattress Size Matters
A good mattress supports your body and fits your room. The wrong size can cause:
- Disrupted sleep (if too small)
- Wasted space (if too large)
- Movement restrictions (if it blocks doors or furniture)
Our calculator helps you avoid these issues by matching you with the ideal dimensions.
How to Measure for a Mattress
Before using the calculator, measure properly for exact results. Here’s how:
Step 1: Measure Your Height
- Stand straight against a wall.
- Mark the top of your head.
- Measure from the floor to the mark.
Step 2: Check Your Room Dimensions
- Measure floor space where the bed will go.
- Leave at least 2 feet of walking space around the bed.
Step 3: Consider Sleeping Habits
- Do you sleep alone or with a partner?
- Do you have kids or pets sharing the bed?
- Do you move a lot in your sleep?
Our calculator factors in all these details.
How the Mattress Size Calculator Works
Just enter:
✔ Your height (so we guarantee enough length)
✔ Number of sleepers (single, couple, or with kids/pets)
✔ Room size (small, medium, or large)
✔ Region (US, UK, or EU sizes vary)
We’ll instantly recommend the best mattress sizes for you.
Mattress Size Comparison Chart
Our calculator also includes a full size chart for reference:
| Size (US) | Dimensions (Inches) | Dimensions (CM) | Best For |
|---|---|---|---|
| Twin | 38″ x 75″ | 97 x 191 cm | Kids, single adults |
| Full | 54″ x 75″ | 137 x 191 cm | Single sleepers with pets |
| Queen | 60″ x 80″ | 152 x 203 cm | Most couples |
| King | 76″ x 80″ | 193 x 203 cm | Couples who want space |
FAQs About Mattress Size Calculator
What if I’m taller than average?
Our calculator adds 6+ inches to your height for comfort. If you’re very tall, we’ll suggest Twin XL, Full XL, or California King.
Can I use this for bunk beds or daybeds?
Yes! Just select “Single sleeper” and “Small room” for bunk beds.
Do European sizes differ from US sizes?
Yes – EU mattresses are slightly narrower. Our calculator adjusts recommendations based on your region.
