Yarn Weight #4 (Medium, Worsted or Afghan) Crochet Patterns

This is an archive of our free and exclusive crochet patterns using medium-weight yarn (classified as #4). The medium weight also includes yarns that are labeled as worsted, afghan and aran. This weight of yarn is usually crocheted using the US hook sizes of I-9 to K-10 1/2 and the metric sizes of 5.5 – 6.5 mm. Medium weight yarn is perfect for summer blanket throws, scarves, crochet sweaters and home decor.

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Free Medium Crochet Patterns

These free crochet patterns were all created using various yarn types and brands, but all use the Medium (#4) yarn weight.

Sideways Jumper

Sideways Jumper

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5.5 mm (I-9),
  • Stitches: Half Double Crochet,
  • Color: Yellow,
Worry Worm

Worry Worm

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Paintbox Yarn,
  • Yarn Name: Simply Aran,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet, Single Crochet, Slip Stitch,
  • Color: Neutral, Red,
Magic Crochet Potholder

Magic Crochet Potholder

Free Crochet Pattern
  • Skill Level: 1. Basic, 2. Easy,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Dishie,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4 mm (G-6),
  • Stitches: Half Double Crochet, Half Double Crochet Back Loop, Single Crochet, Slip Stitch, Slip Stitch Back Loop,
  • Color: Neutral, White,
Franny Granny Square Cardigan

Franny Granny Square Cardigan

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Color Theory,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet,
Kid’s Hooded Vest

Kid’s Hooded Vest

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Paintbox Yarn,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Moss / Linen, Single Crochet,
  • Color: Blue, Gray, White,
Blossom Baby Blanket

Blossom Baby Blanket

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Pound of Love, Wool-Ease,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Single Crochet, Triple Crochet,
  • Color: Pink, White,
Spring to Summer Light Mesh Top

Spring to Summer Light Mesh Top

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Red Heart,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Color: Pink,
Leni Washcloth

Leni Washcloth

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Wool of the Andes Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Color: Yellow,
Blooming Granny Square

Blooming Granny Square

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Caron Yarn,
  • Yarn Name: Caron Cakes,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet,
  • Color: Blue, Green, White,
Shift Granny Square

Shift Granny Square

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Caron Yarn,
  • Yarn Name: Caron Cakes,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet,
  • Color: Neutral, Orange, Pink, Purple,
Gabi Washcloth

Gabi Washcloth

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Wool of the Andes Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Color: Yellow,
Weekend Granny Square

Weekend Granny Square

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Caron Yarn,
  • Yarn Name: Caron Cakes,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet,
  • Color: Neutral, Orange, Pink, Purple,
Sami Washcloth

Sami Washcloth

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Wool of the Andes Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Color: Yellow,
Sarah J Blanket

Sarah J Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Stylecraft,
  • Yarn Weight: Weight 4 – Medium,
  • Color: Pink,
#1 Bobble Blanket

#1 Bobble Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Caron Cakes,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Bobble, Double Crochet, Single Crochet,
  • Color: Variegated,
Abi Washcloth

Abi Washcloth

Free Crochet Pattern
  • Skill Level: 1. Basic, 2. Easy,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Wool of the Andes Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Color: Yellow,
Granny Stitch Hat

Granny Stitch Hat

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Color Theory,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4 mm (G-6),
  • Stitches: Double Crochet,
Daniel Diamond Blanket

Daniel Diamond Blanket

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Hobbii,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Tunisian Simple Stitch,
  • Color: Blue, Green,
The Lola Easy Oversized Crochet Pullover Sweater

The Lola Easy Oversized Crochet Pullover Sweater

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Heartland,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet,
  • Color: Green,
Shipka Cardigan

Shipka Cardigan

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: WeCrochet,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Brown,
Alternating Christmas Afghan

Alternating Christmas Afghan

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Red Heart,
  • Yarn Name: Super Saver,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5.5 mm (I-9),
  • Stitches: Half Double Crochet, Slip Stitch,
  • Color: Green, Red, White,
Crochet Granny Diamond Beanie

Crochet Granny Diamond Beanie

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet, Single Crochet, Single Crochet Two Together, Slip Stitch,
The Fall to Winter Crochet Sweater

The Fall to Winter Crochet Sweater

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Loops and Threads,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Brown, White,
Theo Amigurumi No Sew Bunny

Theo Amigurumi No Sew Bunny

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Single Crochet,
  • Color: Blue, Gray, White, Yellow,
Your First Crochet Beginner Sweater Pattern

Your First Crochet Beginner Sweater Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Caron Yarn,
  • Yarn Name: Caron Cakes,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Half Double Crochet,
  • Color: Blue, Brown,
Victoria Easy Chunky Crochet Cardigan

Victoria Easy Chunky Crochet Cardigan

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Wool-Ease,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet,
  • Color: Pink, White,
Abi Baby Blanket

Abi Baby Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Brava Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Color: Brown,
Flower Granny Bag

Flower Granny Bag

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Knit Picks, WeCrochet,
  • Yarn Name: Upcycle Alpaca Blend Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet,
  • Color: Neutral,
Franny Granny Poncho

Franny Granny Poncho

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Upcycle Alpaca Blend Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Neutral,
Holiday Lace and Mesh Crochet Top

Holiday Lace and Mesh Crochet Top

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: 24/7 Cotton,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4 mm (G-6),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet,
  • Color: Red,
Emerald Opulence Hexagon Crochet Blanket

Emerald Opulence Hexagon Crochet Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 3.5 mm (E-4),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Green, Purple, Red, Yellow,
Baroco Placemat

Baroco Placemat

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hobbii,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6.5 mm (K-10.5),
  • Stitches: Tunisian Simple Stitch,
  • Color: Green, Red,
Crochet Project Bag Pattern

Crochet Project Bag Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Pound of Love,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Moss / Linen, Single Crochet,
  • Color: Pink,
Easy Crochet Hat for Beginners

Easy Crochet Hat for Beginners

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Heartland,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5.5 mm (I-9),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Neutral,
Tweed Stacking Pumpkins

Tweed Stacking Pumpkins

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Brava Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet,
  • Color: Brown, Green, Orange,
Easy Crochet Winter Scarf Pattern

Easy Crochet Winter Scarf Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Touch of Alpaca,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6.5 mm (K-10.5),
  • Stitches: Double Crochet, Half Double Crochet,
  • Color: Red,
Amigurumi Ghost

Amigurumi Ghost

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 3.75 mm (F-5),
  • Stitches: Single Crochet, Single Crochet Two Together, Slip Stitch,
  • Color: Green, White,
The Foolish Frankenstein

The Foolish Frankenstein

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: 24/7 Cotton,
  • Yarn Weight: Weight 2 – Fine, Weight 3 – Light, Weight 4 – Medium,
  • Hook Size: 2.75 mm (C-2), 3.25 mm (D-3),
  • Stitches: Front Loop Single Crochet, Single Crochet, Single Crochet Back Loop,
  • Color: Black, Blue, Brown,
Apple Crochet Coaster Pattern for Fall

Apple Crochet Coaster Pattern for Fall

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Double Crochet, Half Double Crochet, Single Crochet, Slip Stitch,
  • Color: Red,
Pillow The Owl

Pillow The Owl

Free Crochet Pattern
  • Skill Level: 3. Intermediate, 4. Complex,
  • Yarn Brand: Red Heart,
  • Yarn Name: 24/7 Cotton,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 2.75 mm (C-2), 3.25 mm (D-3),
  • Stitches: Double Crochet, Single Crochet, Slip Stitch,
Crochet Dog Bed

Crochet Dog Bed

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Re-Spekt Yarn,
  • Yarn Weight: Weight 3 – Light, Weight 4 – Medium,
  • Hook Size: 4.5 mm (7),
  • Stitches: Single Crochet, Slip Stitch,
  • Color: Brown, Neutral, Variegated,
Into The Wild Blanket Pattern

Into The Wild Blanket Pattern

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Stylecraft,
  • Yarn Name: Simply Aran,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Neutral,
Shelby The Snail Blanket Pattern

Shelby The Snail Blanket Pattern

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Stylecraft,
  • Yarn Name: Simply Aran,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Double Crochet,
  • Color: Neutral,