How to Crochet a Granny Square: From Slip Knot to Finished Motif

The granny square is the project most crocheters make first, and one many never stop making. Three stitches (chain, slip stitch, double crochet), an evening per square, and the tenth one looks nearly identical to your hundredth. Once you can make one, you can join four into a pillow cover or eighty into a blanket.

This guide walks the standard worsted-weight version from the slip knot through the last woven-in end, then covers the four mistakes that actually matter.

What you need

• 5mm hook (US H/8)
• 50 to 100 yards of worsted-weight yarn
• Yarn needle for weaving in ends
• Scissors

That is the entire list. A single square uses about a quarter of a standard skein.

If you're picking yarn for a first attempt, light-colored worsted-weight acrylic or a wool blend is the right call. Avoid black, navy, and anything fuzzy. You need to see the V of each stitch as you work.

The structure

A granny square is built outward from a center ring in rounds, not rows. Every round is the same shape: clusters of three double crochets in each corner, separated by chain spaces that become the next round's corners. That is the entire structural idea.

The single-color version below uses the standard pattern. The math is identical for multi-color squares; you just fasten off and rejoin between rounds.

Round 1: the center

1. Make a slip knot. Place it on your hook.
2. Chain 4.
3. Slip stitch into the first chain to close the loop.
4. Chain 3. This counts as your first double crochet.
5. Make 2 double crochets into the center ring (you now have 3 stitches: the ch-3 plus 2 dc).
6. Chain 2. This is your first corner space.
7. Make 3 double crochets into the ring.
8. Chain 2.
9. Make 3 double crochets into the ring.
10. Chain 2.
11. Make 3 double crochets into the ring.
12. Chain 2.
13. Slip stitch into the top of the original chain-3 to close the round.

You should have four clusters of 3 double crochets with chain-2 corner spaces between them: four corners, twelve dc total. The whole thing looks like a small square with a hole in the middle. That hole closes up as the square grows; don't try to crochet it shut.

Round 2: outward

1. Slip stitch over to the nearest chain-2 corner space.
2. Chain 3 (counts as the first dc of the round).
3. 2 dc into the same corner space (3 dc total in this corner).
4. Chain 2.
5. 3 dc into the same corner space. You now have your first complete corner of round 2: 3 dc, ch 2, 3 dc.
6. Chain 1. This is the side spacing.
7. In the next corner space: 3 dc, ch 2, 3 dc.
8. Chain 1.
9. Repeat steps 7 and 8 in each of the remaining two corners.
10. Slip stitch into the top of the starting chain-3 to close.

The square now has visible corners and sides. The corners always get the 3-dc, ch-2, 3-dc treatment. The sides always get a chain-1 between corners.

Round 3 and beyond

Round 3 repeats round 2's logic with one addition: between the corners there is now a chain-1 space and a side that's filled by the previous round's clusters. Work 3 dc into each chain-1 space on the sides, then continue around with the same corner formula. Every round adds another chain-1 space to fill on each side.

A 3-round square is around 4 inches across in worsted. A 4-round square is around 6 inches. A 6-round square is around 9 inches. Past that, the same logic still works; you just have more chain spaces to fill per round.

Finishing

Cut the yarn six inches from the hook. Pull it through the last loop and tighten. Thread the tail onto a yarn needle and weave it under the back legs of nearby stitches for an inch or two, then trim. Do the same with the starting tail.

For acrylic, that is the entire finishing process. For wool, dunk the square in lukewarm water for ten minutes, squeeze out the excess (don't wring), pin it into a true square on a towel, and let it dry. This is blocking. It evens out tension and squares up the corners. You don't have to do it; the square is finished without it. But blocked wool squares fit together cleanly when you join them, and un-blocked ones fight you.

The four mistakes worth knowing

Corners aren't square. You skipped or added a chain-2 in one of the corners. Count chain-2 spaces at the end of each round: four corners, four spaces. If you have five, you added one; if you have three, you missed one.

The square cups in the center. Your first-round tension is much tighter than your subsequent rounds. This nearly always fixes itself by round 3 or 4 as the bigger rounds pull the small one flat. If it doesn't, blocking will. If blocking doesn't either, you're crocheting round 1 too tightly. Make it again, more loosely.

Stitch count keeps drifting. You're probably working into the chain-2 spaces inconsistently, sometimes putting clusters in the space and sometimes in the chain stitches themselves. Pick one approach and use it every time. Most patterns mean "into the space," not "into the chains."

The center hole is too big. Chain-4-and-slip-stitch always leaves a small hole. If it bothers you, use a magic ring instead: loop the yarn around your fingers, work into the loop, then pull the tail tight. The magic ring takes ten minutes to learn and closes the center to almost nothing.

A pattern to make next

After your first square, the next move is to make eight or ten more and join them. Pick a pattern with a clear color plan so the design decisions are done for you.

Classic Granny Square

Find this pattern on HoneyBee

Purl Soho. Worsted weight, 5mm hook, beginner. The pattern is the version this guide just taught, with photos for each round and notes on color changes for striped versions. If you want a baseline reference to come back to as you start riffing on shapes and colors, this is the one to bookmark.

FAQ

How many squares make a blanket?

For a 30x40 inch baby blanket using 6-inch squares: 35 squares (5 wide, 7 long). For a 50x60 inch throw: 80 squares. Most people start with a pillow cover (4 squares) or a lap blanket (20 to 30 squares) before committing to a full bedspread.

Do I have to use a magic ring?

No. The chain-4-slip-stitch method works fine and is easier to learn. Most experienced crocheters know both and pick based on the project: magic ring for amigurumi and any fitted item where a center hole would show, chain ring for blankets where it won't.

Can I join squares without sewing?

Yes. Slip-stitch and single-crochet joins are the two common methods, both worked with the same hook you used for the squares. Whip-stitch joining (sewn with a yarn needle) gives a flatter seam; crochet joins give a visible ridge that some people prefer as a design element.

Related guides

• How to Crochet for Beginners
• How to Read a Crochet Pattern
• Free Crochet Granny Square Patterns
• Crochet Supplies for Beginners
• How to Crochet in the Round

For yarn weight conventions when you start substituting, the Craft Yarn Council's yarn weight system is the universal reference.

Make one square tonight. Make another tomorrow. Decide what you're going to do with them after that.