Quilt Size Calculator: How Much Fabric Do I Need?

🧵 Quilt Size Calculator

Calculate exact fabric yardage, batting, and backing needed for any quilt size

Quick Presets
📏 Calculator Settings
📐 Quilt Dimensions
✅ Your Quilt Fabric Requirements
🧶 Fabric Type Reference
44"
100% Cotton Width
42"
Flannel Width
58"
Minky Width
108"
Wide Backing Width
3%
Cotton Shrinkage
5%
Flannel Shrinkage
1%
Minky Shrinkage
2%
Poly Shrinkage
📋 Standard Quilt Sizes
Quilt Type Width x Length Sq Inches Metric (cm)
Baby / Crib36" x 45"1,620 sq in91 x 114 cm
Toddler42" x 58"2,436 sq in107 x 147 cm
Lap / Nap54" x 72"3,888 sq in137 x 183 cm
Throw60" x 80"4,800 sq in152 x 203 cm
Twin63" x 87"5,481 sq in160 x 221 cm
Full / Double81" x 96"7,776 sq in206 x 244 cm
Queen90" x 108"9,720 sq in229 x 274 cm
King108" x 108"11,664 sq in274 x 274 cm
Cal. King108" x 114"12,312 sq in274 x 290 cm
📐 Backing Fabric Yardage Guide
Quilt Size 44" Fabric (yds) Wide 108" (yds) Extra Allowance
Baby 36x452.5 yds1.5 yds+4" each side
Lap 54x724.5 yds2.5 yds+4" each side
Throw 60x805 yds2.75 yds+4" each side
Twin 63x875.5 yds3 yds+4" each side
Full 81x967.5 yds3.5 yds+4" each side
Queen 90x1088 yds3.75 yds+4" each side
King 108x1089 yds4 yds+4" each side
🧩 Blocks Per Yard of Fabric (44" wide)
Block Size (finished) Cut Size (+seam) Blocks Per Yard Yds for 100 Blocks
4" x 4"4.5" x 4.5"~72 blocks~1.4 yds
6" x 6"6.5" x 6.5"~42 blocks~2.4 yds
8" x 8"8.5" x 8.5"~25 blocks~4 yds
10" x 10"10.5" x 10.5"~16 blocks~6.3 yds
12" x 12"12.5" x 12.5"~12 blocks~8.4 yds
14" x 14"14.5" x 14.5"~9 blocks~11.1 yds
📦 Batting Coverage by Package Size
Batting Package Dimensions Quilt Size Fits Overhang Each Side
Crib45" x 60"Baby / Toddler4-5 inches
Throw60" x 60"Lap / Throw3-4 inches
Twin72" x 90"Twin Bed4-5 inches
Full/Queen90" x 108"Full & Queen4-5 inches
King120" x 120"King / Cal King6 inches
💡 Tip 1: Always Prewash Fabric — Cotton can shrink 3–5% when washed. Prewashing before cutting prevents your finished quilt from puckering. Add at least 10% to your yardage order to account for shrinkage and cutting waste.
💡 Tip 2: Backing Needs Extra — Your backing fabric should be at least 4 inches larger than the quilt top on all sides (8 inches total per dimension). This gives you room to load onto a longarm machine and trim after quilting.

Choose the right size of quilt is not as difficult as it could appear first. From tiny wall hangings until big royal quilt, including throw quilt, lap quilt baby quilt. Truly, that variety can confuse you at first.

The fun part? Standard sizes help to escape the need of random guessing in that choice.

How to Choose the Right Quilt Size

There is a bit of flexibility in the standard sizes of quilt. Based on the layout of your blocks and their own sizes, the measures can range from four until eight inches in any direction. Even so, they stay near known marks.

For instance, baby quilt commonly reach around 45 by 60 inches, although one finds them also in 36 by 52 inches. Throw quilt or lap quilt normally are about 50 by 65 inches. Twin quilt tend to around 65 by 97 inches.

Full quilt come in 84 by 90 inches. Queen quilt measure about 86 by 102 inches. And for royal size, one considers around 104 by 102 inches.

Throw quilt… Typical at around 45 by 45 inches… Lay well on a sofa and are much less hard than making a whole bed cover, especially if you work against time.

From my experience, quilt in teh range of 60 by 70 inches work the most useful. They lay nicely folded across a sofa and even can cover a bed, if one turns the direction.

Here is where the sizes of beds matter. Full mattress measures 54 by 75 inches. A quilt at around 84 by 90 inches gives about 15 inches of fabric, that hangs down on both long sides and the foot end.

Queen quilt? It covers both queen and full beds without problems, and you can be sure, that your feat do not stick out. Royal quilt works for big sleepers, that stretch, and honestly, it well serves to cover the whole family on a sofa during movie night.

One important point to note, modern mattresses are thicker than before. That raises the upper surface higher from the floor, which changes, how much drop you truly need. Because of that change, the standard sizes for twin, double, queen and royal quilt were fixed, to make up for that bigger overhang.

Before you start planning, take time to truly measure your bed. Think, whether you want, that the quilt lay under and above the pillows, and decide, how far down it should hang along the sides. Some quilt makers like square quilt for full and queen beds, because they hang equally on three sides.

Sleeping habits also matter, if some toss and twist during the whole night, bigger quilt escape cold areas.

Baby quilt at 36 by 36 inches work great for belly-time. Many quilt makers choose 64 by 64 inches as a square option, because the math gets easier with simple block setups. Even if queen size requires 90 by 90, adding some extra inchesfor more drop always is worth the effort.

Quilt Size Calculator: How Much Fabric Do I Need?

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