What Is a Fat Quarter? A Beginner's Guide to Fabric Cuts

Walk into any quilt shop — or browse one online — and you'll quickly encounter a whole new vocabulary. Fat quarters. Long quarters. Jelly rolls. Charm packs. If your eyes have glazed over trying to figure out what any of it means, you're not alone. This guide is for you.

Let's start at the beginning.

What Is a Yard of Fabric?

Quilting cotton typically comes on a bolt and is sold by the yard. A yard of fabric measures 36" long x the width of the fabric — which is usually between 42" and 44" wide (referred to as WOF, or Width of Fabric).

So a full yard gives you a large, somewhat awkward rectangle. Great for some projects, but not always practical when you want a variety of prints without buying a full yard of each.

That's where pre-cuts come in.

What Is a Fat Quarter?

A fat quarter is one of the most beloved cuts in quilting — and for good reason.

When you cut a yard of fabric in half lengthwise and then in half again crosswise, you get four pieces. Each piece measures approximately 18" x 22". That's a fat quarter.

Compared to a regular quarter yard (which would measure 9" x 44"), a fat quarter gives you a much more usable shape — wider and squarer — which means you can cut larger pieces from it. It's the same amount of fabric, just a smarter shape for quilting.

Fat quarters are perfect for:

• Adding variety to a quilt without committing to full yardage
• Fussy cutting specific motifs from a print
• Small projects like pouches, mug rugs, and table runners
• Building a fabric stash one beautiful print at a time

What Is a Fat Quarter Bundle?

A fat quarter bundle is a pre-cut set of fat quarters — usually one of every fabric in a designer collection, bundled together. It's one of the most popular ways to buy fabric because you get a little of everything, all perfectly coordinated, without having to pull individual pieces yourself.

Fat quarter bundles are a quilter's shortcut to a beautiful, cohesive project. They also make wonderful gifts for the quilter in your life!

What Is a Long Quarter?

A long quarter (sometimes called a quarter yard cut) is the more traditional cut — measuring approximately 9" x 44". It's a long, narrow strip of fabric. While it has less versatility for cutting larger pieces, it's useful for borders, sashing, and binding.

Other Common Pre-Cut Sizes

Once you're comfortable with fat quarters, you'll start to encounter other pre-cut formats. Here's a quick cheat sheet:

• Charm Pack — a bundle of 5" x 5" squares, usually 40–42 pieces, one of each print in a collection
• Jelly Roll — a bundle of 2.5" x 44" strips, rolled up and tied with a ribbon. Perfect for strip quilts!
• Layer Cake — a bundle of 10" x 10" squares, one of each print in a collection
• Half Yard — exactly what it sounds like: 18" x 44". Great when you need a bit more of a fabric for backgrounds or borders
• Panel — a large printed piece of fabric, usually 24" to 44" long, featuring a complete design or scene. Often used as a quilt centre or feature piece

How Much Fabric Do You Actually Need?

This is one of the most common questions we get, and the honest answer is: it depends on your pattern! Most quilt patterns will tell you exactly how much of each fabric you need. When in doubt:

• A fat quarter works well for accent fabrics and variety
• A half yard is great for supporting fabrics
• A yard or more is usually needed for backgrounds, borders, and binding

And if you're ever unsure, just ask us! We love helping quilters figure out exactly what they need — no question is too basic, and we promise we won't make you feel silly for asking. That's what Sew Obsessed is here for.

Happy cutting! ✂️