What Size Is a King Bed? | King Bed Dimensions & Comparison Guide

If you're upgrading your sleep setup, one of the first questions you'll ask is: What size is a king bed? A king-size bed offers exceptional space and comfort, making it a popular choice for couples, families, or anyone who values room to stretch out. Before you buy, it’s essential to understand the exact king bed dimensions to ensure a perfect fit for your bedroom.

Standard King Bed Dimensions (US)

A standard king-size bed, also known as an Eastern King, measures:

• 76 inches wide

• 80 inches long

That’s approximately:

• 193 cm wide

• 203 cm long

The standard king bed size is the widest mattress available among standard options, offering generous space for two sleepers — or even a child or pet who sneaks in during the night!

King vs. California King: What’s the Difference?

Many people confuse the standard king with the California king bed. Here’s a quick comparison:

While the California king is longer, the standard king is wider. If you're taller than average and need more legroom, a California king may be ideal. But if you value more sleeping space side-to-side, go with the standard king.

Ideal Room Size for a King Bed

Wondering if a king bed will fit your room? Your bedroom should ideally be at least:

• 12 feet x 12 feet (around 3.65m x 3.65m)

This allows enough space for walking, nightstands, and other furniture without crowding the room.

Mattress Size Chart: Compare Dimensions

Here’s a quick mattress size comparison to see how the king mattress stacks up:

As you can see, the king-size mattress provides the most horizontal sleeping space, ideal for couples who don’t want to feel cramped.

Bedding for a King Bed

When shopping for bedding for a king bed, make sure you're buying the correct sizes:

• Fitted Sheet: 76” x 80”

• Flat Sheet: 108” x 102” (approx.)

• Duvet/Comforter: 104” x 90” or larger

• King Pillows: 20” x 36”

Using the correct bedding ensures a snug fit and a comfortable night’s sleep.

FAQs About King Beds

❓ How big is a king bed in feet?

A king bed is 6.3 feet wide and 6.6 feet long (76” x 80”).

❓ Is a king bed bigger than a queen?

Yes. A king-size bed is 16 inches wider than a queen, although both are 80 inches long.

❓ Which is better: king or California king?

It depends. If you’re tall, choose a California king for more legroom. If you prefer wider sleeping space, go for a standard king.

❓ Will a king-size bed fit in a 10x10 room?

It’s possible, but tight. A 12x12 room or larger is more suitable for comfort and functionality.

❓ Do two twin beds make a king?

Not exactly. But two Twin XL mattresses (38” x 80” each) side-by-side equal a standard king (76” x 80”).

❓ Can I use queen bedding on a king bed?

No. Queen-size bedding will be too small for a king mattress. Always choose bedding designed for king-size beds.

❓ How heavy is a king mattress?

A standard king mattress typically weighs 130 to 180 pounds, depending on the material and thickness.

❓ What type of bed frame is needed for a king bed?

You’ll need a king-size bed frame with center support to properly hold the mattress and box spring.

❓ Can I move a king mattress alone?

It’s not recommended. Due to its size and weight, always have at least two people when moving a king mattress.

Final Thoughts: Is a King Bed Right for You?

A king bed is an excellent choice if you want maximum comfort, extra space, and a luxurious sleep experience. With its 76” x 80” size, it provides more than enough room for two sleepers and even a pet or child. Just be sure your bedroom is large enough to accommodate it.

? Ready to upgrade your sleep?
Shop luxury king-size mattresses online at www.xyultra.com — where comfort meets quality and style.