Quilt Sizes
King Quilt Size
Standard king quilt dimensions: 108″ wide × 108″ long (274×274 cm, or 9.00×9.00 ft).
King Quilt at a Glance
Who Is a King Quilt For?
King is the largest standard quilt size and the biggest commitment in time, fabric, and money. At 108×108" the king quilt covers a 76×80" Eastern king mattress with 16 inches of drop on each side, 28 inches at the foot, and a 12-inch pillow tuck. Expect 15–25 yards of fabric total and 60–120 hours of sewing for a king-size project.
- ✓King-size master bedrooms
- ✓Showpiece heirloom quilts
- ✓Statement bedding for vacation rentals
- ✓Layer cake / jelly roll megaprojects
King Quilt Size Variations
Not every king quilt is the same size. These are the common variations published in modern quilt pattern books:
| Variation | Width | Length |
|---|---|---|
| Coverlet king | 100″ | 96″ |
| Standard king | 108″ | 108″ |
| Rectangular king | 108″ | 110″ |
| Generous king | 120″ | 120″ |
The History of the King Quilt
King mattresses (76×80") and California king mattresses (72×84") were introduced to the US market in the early 1960s as 'luxury' bed sizes. Quilt patterns took until the 1990s to standardize king dimensions — earlier pattern books often listed 'king' as 100×96", which doesn't reach the floor on a modern pillow-top king mattress. Today's 108×108" standard accounts for thicker mattresses.
Sizing Considerations
- 1Backing is the hardest part — 108" is wider than every standard fabric width except 108" wide-back
- 2108" wide-back fabric is essential for kings — 3¼ yards covers a king with no piecing
- 3Use a longarm — domestic machines struggle with 108×108" quilt sandwiches
- 4Plan for 25+ yards of fabric total (top + back + binding)
- 5Mattress thickness on modern pillow-top kings can be 14–18 inches — add an extra 6–8 inches to the side drop if your bed is taller than 12 inches
- 6King quilts are heavy — consider lighter batting (cotton or bamboo) to reduce weight
International King Quilt Sizes
United Kingdom
~274 × 274 cm
108×108" converts to ~274×274 cm. The UK 'super king' bed (180×200 cm mattress) takes a quilt of roughly 260×220 cm — narrower than US king because UK super king mattresses are 4 inches narrower (180 cm vs 193 cm).
Australia / NZ
~274 × 274 cm
Australian king mattresses are 183×203 cm — the same as US king. Australian king quilts are typically 245×210 cm, smaller than US king because of different drop conventions.
King Quilt Fabric Needs
Use the yardage calculator for an exact estimate by pattern type, or the backing calculator to see whether you need pieced backing or 108″ wide-back fabric.
Frequently Asked Questions
What is the standard size of a king quilt?+
A standard king quilt measures 108 inches wide by 108 inches long (108×108"). This fits an Eastern king mattress (76×80") with a 16-inch drop on each side, 28 inches at the foot, and a 12-inch pillow tuck.
What are the dimensions of a king size quilt in inches?+
The standard is 108×108" — square. Variations include 100×96" (small coverlet), 108×110" (rectangular with pillow tuck), and 120×120" (generous floor-length). California king quilts are different: 104×114".
How big is a king quilt in feet?+
A 108×108" king quilt is 9 feet by 9 feet. The mattress underneath is 6 feet 4 inches wide by 6 feet 8 inches long.
How wide is a king size quilt?+
108 inches wide is the standard. Some pattern books use 110" or 120" for kings designed to reach the floor on a tall pillow-top mattress. The mattress itself is 76 inches wide.
How much fabric do I need for a king quilt?+
Plan for 18–25 yards total: 10–14 yards for the quilt top, 3¼ yards of 108" wide-back fabric (or 9+ yards of standard 44" WOF fabric pieced for the back), and 1 yard for binding. King quilts are the most fabric-intensive standard quilt size.
Is a king quilt square?+
Yes — the standard king quilt is 108×108", a perfect square. This works because the king mattress (76×80") is only 4 inches longer than it is wide, and modern bedding conventions favor symmetrical drop. Some rectangular king quilts (108×110") add a touch of length for pillow tuck.
What is the difference between a king and a California king quilt?+
An Eastern (standard) king mattress is 76×80"; a California king is 72×84" — narrower and longer. King quilts are 108×108" (square); California king quilts are 104×114" (rectangular). The total square footage is similar, but they're not interchangeable.
Related Quilt Sizes
Plan Your King Quilt
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Compare all standard quilt sizes — wall hanging to king — on the master quilt sizes chart.
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