A granny triangle bandana sits at the intersection of three things I love: granny stitch rhythm, practical accessories, and projects that use exactly one skein of yarn.
This version is worked from the center point outward, increasing predictably at the center corner on every row. The granny clusters fan out symmetrically, creating a right triangle that drapes beautifully around the head when tied.
The bandana can be any size you want. Stop early for a small kerchief that just covers the crown, or keep going for a larger triangle that drapes further down the back. The same pattern logic works at any scale.
It's the kind of project you can start on a Saturday morning, wear to the farmers' market, and finish the remaining rows during a lazy Sunday on the porch.
Why You'll Love This Crochet Bandana
The granny stitch is satisfyingly rhythmic.
Once you've worked the first three rows, the pattern logic clicks into place. Clusters of three double crochets go into the chain-1 spaces on the sides. The corner gets a cluster, a chain-2, and another cluster. The edges get a cluster, a chain-1, and a final double crochet.
It's predictable without being boring. Each row adds one more cluster per side, so you can see your progress with every pass.
The construction is a true right triangle.
The increases happen only at one corner—the center point. The sides grow outward symmetrically. When you hold it up by the two short edges, the long edge forms the curve that wraps around your head.
One skein of cotton yarn is all you need. A single ball of Lion Brand 24/7 Cotton makes a full-size bandana with yardage to spare. Cotton gives the fabric a crisp drape that holds its shape and feels cool against skin in warm weather.
Materials Needed
- 73 grams / 135 yards of medium weight (#4) cotton yarn
- 4.0 mm (G-6) crochet hook
- Scissors
- Tapestry needle
Lion Brand 24/7 Cotton in Bay Leaf is the shade shown. At $4.99 per 186-yard ball, one ball covers the bandana with yardage remaining. The mercerized finish gives the granny clusters a subtle sheen.
Any smooth cotton or cotton-blend worsted weight works. Paintbox Yarns Cotton Aran ($3.99 per 196 yards) is a good budget alternative with an extensive color range.
The 4.0 mm hook is slightly smaller than standard worsted weight recommendations, which keeps the granny clusters tight enough that the bandana holds its shape but open enough that the lace pattern reads clearly.
Best Yarn Choices for a Granny Bandana
Cotton is the fiber for warm-weather accessories.
It breathes, wicks moisture, and doesn't trap heat against your scalp the way acrylic can. For a bandana you'll wear on sunny days, cotton is the practical choice.
Lion Brand 24/7 Cotton gives you defined granny clusters with crisp edges. The mercerized finish catches light and makes the lace pattern pop visually.
For a softer drape, a cotton-bamboo blend like Lion Brand Coboo ($6.99 per 232 yards) adds silkiness and drape. The bandana will be slightly less structured but softer against the forehead and neck.
Acrylic is a budget option but expect a different drape. Acrylic bandanas tend to be slightly stiffer and warmer. Red Heart Super Saver at $4.49 per skein is the most affordable route.
Avoid anything fuzzy or heavily textured. The granny pattern relies on visible chain spaces for its look. Fuzzy yarns fill in those spaces and obscure the lace pattern.
Gauge, Size Guide & Must-Have Tools
Gauge for granny stitch is flexible. What matters is that your fabric drapes well and the clusters look even.
With worsted weight cotton and a 4.0 mm hook, 18 rows of the granny triangle pattern produce a bandana with short sides about 14.6 inches and a long side about 20.9 inches.
Finished dimensions (adjustable):
- Short sides: about 14.6 inches
- Long side (hypotenuse): about 20.9 inches
For a smaller bandana, stop adding rows earlier. For a larger one that drapes further down the back, continue beyond row 18. The pattern logic doesn't change; you just keep going.
Must-have tools:
- 4.0 mm hook: A smooth hook finish helps when working into chain spaces.
- Tapestry needle: For weaving ends and attaching ties.
Pattern Notes & Tips Before You Start
The chain-5 at the start of each row counts as a double crochet and a chain-1. The final stitch of each row mirrors this—a cluster, chain-1, double crochet—to keep the edges symmetrical.
Chain-1 spaces are side spaces. Chain-2 spaces are corner spaces. This distinction is what creates the triangular shape. If you accidentally put 2 chains in a side space, that edge will bulge outward.
The center corner (the chain-2 space from the previous row) always gets a cluster, chain-2, and another cluster. This is what makes the triangle grow. Without that second cluster in the corner, the fabric would stop increasing.
Work your foundation chain loosely. Tight foundation chains make it difficult to fit all the stitches of the first row into the end chain, which can pucker the starting point.
Abbreviations Explained
- ch – chain: Yarn over, pull through loop.
- ch1-sp – chain-1 space: The gap created under a chain-1.
- ch2-sp – chain-2 space: The corner gap created under a chain-2.
- dc – double crochet: Yarn over, insert hook, pull up loop, (yarn over, pull through two loops) twice.
- sc – single crochet: Insert hook, yarn over, pull up loop, yarn over, pull through both loops.
- sl st – slip stitch: Insert hook, yarn over, pull through stitch and loop.
- sp – space: The gap where stitches are worked.
Step-by-Step Granny Triangle Bandana
Starting the Triangle
Foundation: Make a slipknot. Chain 6.
Row 1: In the 6th chain from the hook (the same chain as the base of the chain-6), work (3 dc, ch 2, 3 dc, ch 1, dc). (1 cluster per side)
If it's hard to fit all these stitches into that single chain, undo your foundation and make the first chain slightly looser. The initial chain should accommodate the stitch grouping without straining.
The bolded chain-2 space in the center becomes the corner that divides the two sides of the triangle.
Growing the Triangle
Row 2: Chain 5, turn. Dc3 in the first chain-1 space. Chain 1. (Dc3, ch 2, dc3) in the corner chain-2 space. Chain 1. (Dc3, ch 1, dc) in the last space. (2 clusters per side)
Row 3: Chain 5, turn. (Dc3 in next ch1-sp, ch 1) 2 times. (Dc3, ch 2, dc3) in corner ch2-sp. Ch 1. Dc3 in next ch1-sp. Ch 1. (Dc3, ch 1, dc) in last sp. (3 clusters per side)
Rows 4–18: Continue the pattern. Each row adds one more (dc3 in next ch1-sp, ch 1) before the corner and one more (ch 1, dc3 in next ch1-sp) after the corner.
For example, Row 4 will have (dc3, ch 1) three times before the corner, the corner treatment, then (ch 1, dc3) two times, then the edge finish.
Row 18 will have (dc3, ch 1) seventeen times before the corner and (ch 1, dc3) sixteen times after.
Stop adding rows when the triangle is large enough to cover your head from crown to nape.
First Strap
Chain 40. Sc in the 2nd chain from the hook and in each of the next 38 chains. (39 sc)
For a longer strap, chain more. For a shorter strap, chain fewer. Measure from your ear to the nape of your neck plus enough to tie a knot comfortably.
Finishing Edge
Work 3 single crochets into each chain space along the long edge of the triangle (the hypotenuse). Space the sc evenly in the corner spaces. This neatens the edge and gives the bandana a finished look.
Second Strap
Chain 40. Sc in the 2nd chain from the hook and across. Slip stitch to the corner chain space of the triangle to anchor. Fasten off.
If you chained a different number for the first strap, match that number here.
Finishing
Weave in all ends. Block the bandana by misting with water and pinning flat, paying attention to the corner point and the straightness of the edges. Let dry completely before wearing.
Easy Variations & Custom Ideas
Picot edge: Instead of plain sc along the long edge, alternate (sc in next 2 spaces, chain 3, sl st in first ch) for a decorative picot border.
Mini kerchief: Stop at row 10 for a smaller bandana that ties under a ponytail or around a bun.
Shawl version: Continue adding rows until the triangle is shawl-sized. Use a larger hook and a lighter weight yarn for better drape at that scale.
Scrap yarn: Change colors every 3 rows. The granny pattern hides yarn changes well at the row transitions.
Common Troubleshooting and Fixes
Triangle edges are curving: You may be missing the edge treatment. Each row must start with ch 5 and end with (dc3, ch 1, dc). Both edges must increase symmetrically.
Corner looks lopsided: The corner always gets (dc3, ch 2, dc3). If you're putting only ch 1 in the corner, the corner will pull to one side.
Chain spaces are uneven sizes: Consistency comes with practice. Focus on making chain-1 spaces uniform and chain-2 spaces clearly wider.
Bandana is too stiff: Your hook may be too small for your yarn. Try a 4.5 mm or 5.0 mm hook for a looser, drapier fabric.
Final Thoughts
A granny triangle bandana is one of those projects that looks far more complex than it actually is.
Guests at my house have picked up the one draped over my couch and assumed it was vintage or store-bought. The granny stitch reads as "heirloom" to people who don't crochet.
Make one in cotton for summer and one in a soft wool for fall layering. The same pattern, different yarn, completely different accessory.
Tag me if you make one. I especially love seeing these in unexpected color combinations.
