Hey everyone. Today we're sizing the trickiest bed in the house: the California king.
This bed fools more quilters than any other. It says "king" on the tag and measures like nothing else in the chart. Get these numbers wrong and your quilt ends four inches short at the foot.
Key Takeaways
- A California king mattress measures 72″ × 84″ — 4″ narrower and 4″ longer than a standard king at 76″ × 80″.
- A finished California king quilt runs 100″ × 104″ to 108″ × 110″. Most quilters aim near 104″ × 110″.
- A standard king quilt is wider but shorter — on this bed, it leaves the foot exposed.
- Batting: a 120″ × 120″ king package or a cut from a 120″ roll covers it, margin included.
What Are the Standard Dimensions of a California King Quilt?
A California king mattress is 72″ wide by 84″ long. Longer, narrower. It trades width for length, and tall sleepers love it.
Most California king quilts finish between 100″ × 104″ and 108″ × 110″. The math: 72″ of mattress plus 16″ of drop per side lands at 104″ wide; the 84″ length, foot drop, and a pillow tuck land around 110″.
California King vs. King: the Four-Inch Swap
A standard king mattress is 76″ × 80″; a California king is 72″ × 84″. Same family name, different shape — the king actually has slightly more surface area.
So no, a king pattern won't drop neatly onto this bed — it puddles at the sides and quits early at the foot. Adapting one? Keep the width, drop a few blocks, add length, and plan it before you cut. Our complete guide to quilt sizes covers standard king in depth.
Every Standard Quilt Size in One Chart
The shop chart, with your row starred.
| Quilt Size | Mattress Size | Typical Quilt Dimensions | Typical Drop | Recommended Batting Size |
|---|---|---|---|---|
| Baby / Crib | 28″ × 52″ | 36″ × 52″ to 45″ × 60″ | 4″–8″ | 45″ × 60″ package |
| Lap / Throw | — | 50″ × 60″ to 60″ × 70″ | — | 60″ × 60″ package |
| Twin | 39″ × 75″ | 68″ × 86″ to 72″ × 90″ | 14″–16″ | 72″ × 90″ package |
| Twin XL | 39″ × 80″ | 68″ × 91″ to 72″ × 95″ | 14″–16″ | Twin pkg or roll cut |
| Full / Double | 54″ × 75″ | 76″ × 87″ to 80″ × 96″ | 11″–13″ | 81″ × 96″ package |
| Queen | 60″ × 80″ | 88″ × 92″ to 96″ × 108″ | 14″–18″ | 90″ × 108″ package |
| King | 76″ × 80″ | 104″ × 92″ to 110″ × 108″ | 14″–17″ | 120″ × 120″ pkg / roll |
| ★ California King | 72″ × 84″ | 100″ × 104″ to 108″ × 110″ | 14″–18″ | 120″ × 120″ pkg / roll |
Different bed? Our standard quilt size guide runs the drop formula for every size.
What Size Batting Do You Need for a California King Quilt?
Big bed, simple answer: you need 120″ batting. Nothing smaller survives the math — your top might finish at 104″ × 110″, and batting runs 4″ to 8″ past it per side. Two routes we point folks to:
- The Hobbs Heirloom 80/20 120″ Wide Batting Roll lets you cut exactly the length you need.
- The Hobbs Tuscany Cotton Wool Batting Package, King Size 120″ × 120″ is the grab-and-go option.
More options live in our quilt batting collection. And from experience: dense, heavy fill makes this a two-person laundry day. Lower loft keeps it manageable.
Pro Tips for California King Quilts
- Check your longarm frame first. A 108″ top plus margins totals 120″. Many frames max out at 120″ to 126″.
- Back it in wideback. About 3½ to 4 yards of 108″ wideback covers most Cal kings, no piecing.
- Plan for 3–5% shrinkage. Build the buffer into the length.
- It doesn't have to be perfect. A quilt an inch long still gets used and loved.
Sizing Another Bed? Read These Next
- Twin Quilt Dimensions — plus the Twin XL dorm-bed fix.
- Queen Size Quilt Dimensions — the most-shopped size.
- Full Size Quilt Dimensions — the in-between bed.
- Standard king? Our hub guide Understanding Quilt Sizes covers king in depth.
Frequently Asked Questions
What size is a California king quilt?
A finished California king quilt usually measures 100″ × 104″ to 108″ × 110″, with 104″ × 110″ a common target — enough for a 72″ × 84″ mattress with 14″ to 18″ of drop.
Will a regular king quilt fit a California king bed?
Not well. A king quilt is built for a wider, shorter 76″ × 80″ mattress, so on a Cal king it hangs long on the sides and short at the foot.
Is a California king bigger than a king?
It's longer, not bigger overall. A California king is 72″ × 84″; a standard king is 76″ × 80″ — slightly more surface area, less length.
What size batting do I need for a California king quilt?
Buy 120″ batting — a 120″ × 120″ king package or a cut from a 120″-wide roll. Batting still extends 4″ to 8″ past your top on all sides.
How much backing fabric does a California king quilt need?
Plan on about 3½ to 4 yards of 108″ wideback. Standard 44″ fabric means roughly 10 to 11 yards, plus piecing.
Alrighty. Measure twice, trust your numbers, and go make something beautiful.
We'll see you next time. Bye.
