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How to Crochet Granny Triangle Tutorial

Learn how to crochet a granny triangle. Written instructions with photos and video are included in this step by step tutorial.

In crochet, a granny is a cluster of 3 double crochets. Usually we use this in a granny square, but you can also crochet a triangle this way.

Crochet grannies are popular because they’re so easy to make and even easier to increase.

When you start using up scrap yarn, a granny triangle or square is an easy way to do it.

Crochet granny triangle and hook.
A simple granny triangle in cotton yarn.

The Yarn for this Granny Triangle

I’m using a #4 medium weight cotton yarn. You can use a variety of yarn weights and fibers to make granny triangles.

It’s important that you match your hook to your yarn. Or use what your pattern suggests.

Black crochet sandals by pool.

Crochet Granny Triangle Patterns

You can add a crochet granny triangle to a simple pair of flip flops.

Or show off that pretty yarn in a granny triangle shawl or scarf.

Crochet triangle scarf from granny triangle with tassels laid on wood porch.
I love how this colorful “print” yarn works up in a granny triangle.

If granny squares are more your thing, then check out the Bettie Bear Lovey.


You can use any weight yarn, #4 medium yarn is the most commonly used.

For this tutorial I use:

  • I Love This Cotton Yarn is a #4 medium weight yarn (100% acrylic; 180 yds / 165 m; 3 oz / 85 g).
  • 3.75mm (F) hook
  • Stitch markers
  • Yarn needle
  • scissors

Stitches/Abbreviations {US Terms}


ch sp-chain space

dc-double crochet

mc-magic circle or you can ch 3 and sl st to the first ch to form a circle.



sl st-slip stitch

Small crochet granny triangle.




This granny triangle is worked in the round. This means you will crochet in a circle, and join the rounds with a slip stitch, and then continue crocheting in the same direction for the next round.


To adjust the size of your granny triangle you can crochet more or less rounds of the repeat. This will increase or decrease the overall size of your triangle.

Changing the weight of your yarn and hook will change the size of your individual stitches, and then also your granny triangle.

So usually a #3 light weight yarn will yield a smaller stitch and triangle than a #4 medium weight yarn. However, much depends on your personal tension.

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Granny triangle in black cotton yarn.

Scroll down for the Granny Triangle Crochet Tutorial

Crochet granny triangle and hook.

How to Crochet a Granny Triangle

Yield: 1
Prep Time: 1 minute
Active Time: 10 minutes
Additional Time: 1 minute
Total Time: 12 minutes
Difficulty: Easy
Estimated Cost: $2

Learn how to crochet the classic granny triangle.


  • 20 yds/18.3m of cotton yarn, I used what I had on hand, I Love This Cotton in black. You can use any yarn.


  • 3.75mm Hook size F. You can use any hook that's compatible with your yarn.


    Start with a magic circle, or Ch 3 + sl st to first chain. You will crochet into the circle formed here.

    1. 3 double crochet in circleRnd 1. Ch 3 (this counts as the first dc), place 2 dc into the circle formed from first step, then ch 1
    2. Continue and place 3 dc into the circle, then ch 1
    3. Round 1 stitches complete.Place 3 dc into the circle, ch 1 and sl st to 3rd ch to join. Rnd 1 is complete.
    4. Round 2 shows 3 double crochets and chain one and 3 double crochets in corner.Rnd 2. Sl st over to the next ch 1 space and place (ch 3, 2 dc, ch 1, 3 dc) all into that space. This forms the first corner of the triangle.
    5. In second corner place 3 double crochets, a chain one and 3 double crochets.Sk to next ch 1 sp and place (Ch 3, 2 dc, ch 1, 3 dc) this is the second corner.
    6. Sk to last ch 1 sp and place (Ch 3, 2 dc, ch 1, 3 dc, ch 1), join to 3rd chain of 1st stitch. This forms the 3 corners of your triangle. Rnd 2 is complete.
    7. First corner of granny triangle.On the next round, sl st over to the next ch sp. Rnd 3. Ch 3, 2 dc, ch 1, 3 dc, ch 1 all in the same ch 1 sp,
    8. Granny triangle side on third row.Sk to next ch 1 sp and place (3 dc, ch 1) all in this ch 1 sp.
    9. Granny triangle tip.Continue to the next ch 1 sp and place (3 dc, ch 1, 3 dc, ch 1) all in the ch 1 sp, this is a corner.
    10. Continue to the next ch 1 sp and place (3 dc, ch 1) all in the ch 1 sp, this is a side.
    11. Rep the last two steps one more time.
    12. Granny triangle crochet complete.Sl st to 3rd ch to join. This completes Rnd 3.
    13. Crochet granny triangle and hook. Rnd 4. Sl st to the next corner, (Ch 3, 2 dc, ch 1, 3 dc) all in same ch sp, *{ch 1, sk 3 dc, in next ch sp place 3 dc}, rep * until the next corner, then ch 1 sk 3 dc, place (3 dc, ch 1, 3 dc) in the corner then continue to rep the * along the sides until the next corner, always placing (3 dc, ch 1, 3 dc) in each corner, sl st to 3rd ch to join the rnd.
    14. Keep repeating the last step until your granny triangle is as large as you like.


Alternately you can use a ch 2 in each corner and a ch 1 on the sides to help define them.

To change colors, cut the yarn and join new color with a sl st to any corner and continue.

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