Crocheting a phone bag from granny squares is a fun, quick, and stylish project that is perfect for both beginners and experienced crafters. This tutorial will guide you through all the steps, from making the individual granny squares to joining them and adding a finishing strap. It’s a great way to use up yarn scraps and create a unique, handmade accessory.

Skill Level: Confident Beginner
This project is a great choice if you’re comfortable with:
- Magic Ring (MR) / Adjustable Ring: For a neat, closed center.
- Chain (ch): The foundation of crochet.
- Slip Stitch (sl st): For joining stitches and rounds neatly.
- Double Crochet (dc): The main stitch for granny squares.
- Working in Rounds: Crocheting in joined circles.
- Joining Motifs: Connecting your granny squares together.
- Fastening Off: Securely ending your yarn.
- Weaving in Ends: The crucial final step for a polished and durable project.
Finished Phone Bag Dimensions (Approximate):
The finished size will depend on the size of your granny squares. For a phone bag that fits most modern smartphones, your squares should measure about 4-5 inches (10-12 cm) per side. The finished bag will be about 5 inches (12.5 cm) wide and 7 inches (18 cm) tall when assembled.
Materials You’ll Need:
- Yarn: Approximately 50-75 yards (45-68 meters) of Worsted Weight (Medium #4) Yarn. This is a perfect project for using up scraps! You’ll need at least two colors. A cotton or acrylic yarn is recommended for a soft and durable finish.
- Crochet Hook: Size H/5.0mm.
- Yarn Needle (Tapestry Needle): Essential for weaving in ends and sewing the squares together.
- Scissors: Any sharp pair for cutting your yarn.
- Stitch Markers (Optional): Helpful for marking corners and keeping your place.

Part 1: Making the Granny Squares
You will need to make 4 identical squares. The size of your squares is important as it will determine the size of your finished phone bag.
For each square, follow these steps:
- Round 1 (Magic Ring):
- With your first color, create a Magic Ring (MR).
- Chain 3 (ch 3) (counts as your first dc).
- Work 2 double crochet (dc) stitches into the ring.
- Chain 2 (ch 2) (this creates your first corner space).
- *Work 3 dc into the ring. Chain 2 (ch 2).*
- Repeat from * to * two more times.
- Join with a slip stitch (sl st) to the top of the beginning ch 3.
- Change to a new color on the last slip stitch of the round. (4 clusters of 3 dc, 4 corner spaces)
- Round 2:
- Chain 3 (ch 3) (counts as your first dc).
- Work 2 dc into the same corner space.
- Chain 1 (ch 1) (this creates a side space).
- In the next corner space, work (3 dc, ch 2, 3 dc).
- Chain 1 (ch 1).
- In the next corner space, work (3 dc, ch 2, 3 dc).
- Chain 1 (ch 1).
- In the next corner space, work (3 dc, ch 2, 3 dc).
- Chain 1 (ch 1).
- In the first corner space (where you started), work 3 dc.
- Join with a sl st to the top of the beginning ch 3.
- Change to a new color on the last slip stitch.
- Round 3:
- Chain 3 (ch 3).
- Work 2 dc into the same corner space.
- Chain 1 (ch 1).
- Work 3 dc into the next side space.
- Chain 1 (ch 1).
- In the next corner space, work (3 dc, ch 2, 3 dc).
- Chain 1 (ch 1).
- Continue this pattern: 3 dc into each side space and (3 dc, ch 2, 3 dc) into each corner space.
- Join with a sl st to the top of the beginning ch 3.
- Change to a new color on the last slip stitch.
- Repeat Round 3 until your squares measure about 4-5 inches on each side. You will need 4 squares total.

Part 2: Assembling the Phone Bag
Once you have your 4 squares, it’s time to join them to form the phone bag. We’ll join them by sewing the squares together with a yarn needle and a simple whip stitch, which creates a clean, durable seam.
- Arrange the Squares:
- Lay your 4 squares out in a long row. This will form the front, back, and bottom of the phone bag.
- Join the Squares:
- Using a yarn needle and a sturdy yarn (this can be one of your granny square colors or a new main color), lay two squares next to each other, wrong sides facing.
- Insert your needle into the corner stitch of both squares and begin a whip stitch, sewing through both loops of each stitch. This creates a clean, durable seam.
- Continue sewing down the side until you reach the next corner.
- Repeat this process to join all four squares together in a long strip.
- Once all four squares are joined, fold the strip to form the phone bag shape. The two end squares will be joined together at the bottom.
Part 3: Adding the Strap and Finishing
This final step adds a secure and stylish strap to your phone bag.
- Crochet the Strap:
- With your main color, chain (ch) 80-100, or to your desired length.
- Row 1: Work 1 single crochet (sc) into the second chain from the hook and into each chain across.
- Fasten off, leaving a long tail for sewing.
- Attach the Strap:
- Using your yarn needle and the long tail, sew one end of the strap to the top inside corner of the phone bag.
- Repeat on the other side, sewing the other end of the strap to the opposite top inside corner.
- Fasten off and weave in all tails.
- Final Finishing Touches:
- Weave in All Ends: Use your yarn needle to meticulously weave in all the yarn tails from your squares, the joining, and the strap.
- Blocking (Optional but Recommended): Gently mist the bag with cool water until it is damp and allow it to air dry completely.
Congratulations! You’ve successfully crocheted a unique and stylish Granny Square Phone Bag! This project is a fantastic way to use up your yarn and make a one-of-a-kind accessory.