What Size Is a King Bed? Everything You Need to Know

If you’re planning to upgrade your sleep space, a king-size bed is the ultimate in comfort and luxury. But before you make the investment, it’s essential to know the exact dimensions of a king bed, how it compares to other sizes, and how much space you’ll need in your bedroom.

King Bed Dimensions (Standard)

A standard king bed—also called an Eastern King—measures:

• 76 inches wide

• 80 inches long

• (193 cm x 203 cm)

This makes it 16 inches wider than a queen-size bed, offering significantly more room for couples or individuals who like to spread out. It’s the widest standard mattress size available on the market.

King Bed Frame Size

The bed frame for a king mattress is slightly larger than the mattress itself to accommodate borders and bedding. On average, a king bed frame measures:

• 78–82 inches wide

• 82–86 inches long

Some frames come with added features like built-in drawers or extended headboards, so be sure to measure your available floor space accurately.

Minimum Room Size for a King Bed

To ensure you can comfortably walk around the bed and fit other furniture, your room should be at least:

• 12 feet x 12 feet (3.6 m x 3.6 m)

This gives you enough space for nightstands, wardrobes, and proper circulation around the bed. In smaller rooms, a king bed might overwhelm the space or make it feel cluttered.

King Bed vs. Other Mattress Sizes

Here’s how a king compares to other common sizes:

• Queen: 60" x 80"

• King: 76" x 80"

• California King: 72" x 84"

• Split King: Two twin XL mattresses (38" x 80" each)

While a California king is longer, the standard king provides more width—great for couples who need extra personal space.

Bedding for a King-Size Mattress

To properly dress a king bed, you’ll need:

• Fitted sheet: 76" x 80"

• Flat sheet: Approx. 108" x 102"

• Comforter or duvet: At least 102" x 90"

• King-size pillows: 20" x 36"

Using the correct bedding size ensures a clean, snug fit and maximizes the bed’s visual appeal.

Final Thoughts

A king bed offers unmatched comfort for those who prioritize space and restful sleep. With its 76" x 80" size, it’s perfect for master bedrooms and ideal for couples or families who co-sleep. Just make sure your room is spacious enough to accommodate it with ease.

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