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.

  • Paw Print Tapestry

    Paw Print Tapestry

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Stylecraft,
    • Yarn Name: Simply Aran,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4 mm (G-6),
    • Stitches: Single Crochet,
    • Color: Black, White,
  • Mystical Adult Sweater

    Mystical Adult Sweater

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5.5 mm (I-9),
    • Stitches: Half Double Crochet, Half Double Crochet Back Loop, Half Double Crochet Front Loop,
    • Color: Blue, Yellow,
  • Cozy Pom Pom Beanie

    Cozy Pom Pom Beanie

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobby Lobby,
    • Yarn Name: I Love This Yarn,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 6 mm (J-10),
    • Color: Blue, Green, Variegated,
  • Morning Mist Crochet Scarf

    Morning Mist Crochet Scarf

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 6 mm (J-10),
    • Stitches: Double Crochet,
    • Color: Blue,
  • Little Hearts Tapestry

    Little Hearts Tapestry

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Stylecraft,
    • Yarn Name: Simply Aran,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4 mm (G-6),
    • Stitches: Single Crochet,
    • Color: Pink, White,
  • Oversized Easy Chunky Crochet Sweater

    Oversized Easy Chunky Crochet 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),
    • Color: Gray,
  • Quick Half Double Crochet Blanket

    Quick Half Double Crochet Blanket

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 6 mm (J-10),
    • Stitches: Half Double Crochet,
    • Color: Green,
  • Crochet Pumpkin Pattern (2 Sizes!)

    Crochet Pumpkin Pattern (2 Sizes!)

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobby Lobby,
    • Yarn Name: CotLin,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4 mm (G-6),
    • Stitches: Half Double Crochet, Half Double Crochet Back Loop,
    • Color: Green, Neutral,
  • Fall Pumpkin Wreath

    Fall Pumpkin Wreath

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobby Lobby,
    • Yarn Name: CotLin,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4 mm (G-6),
    • Stitches: Half Double Crochet, Half Double Crochet Back Loop,
    • Color: Green, Neutral,
  • Caesar Scarf

    Caesar Scarf

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Name: Upcycle Alpaca Blend Worsted,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5.5 mm (I-9),
    • Stitches: Tunisian Simple Stitch,
    • Color: Blue, Green, Neutral, Orange, Pink,
  • Cool Crochet Balaclava

    Cool Crochet Balaclava

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Black, White,
  • Cool Crochet Bucket Hat

    Cool Crochet Bucket Hat

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Double Crochet Increase, Single Crochet,
    • Color: Orange, Pink,
  • Franny Granny Adult Cardigan

    Franny Granny Adult Cardigan

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: WeCrochet,
    • Yarn Name: Comfy Worsted,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Neutral, Variegated,
  • Franny Granny Adult Dress

    Franny Granny Adult Dress

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: WeCrochet,
    • Yarn Name: Comfy Worsted,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Blue, Green, Neutral, Pink, Red,
  • Franny Granny Child Dress

    Franny Granny Child Dress

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: WeCrochet,
    • Yarn Name: Comfy Worsted,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Green, Neutral, Orange, Pink,
  • Hyacinth Bucket Hat

    Hyacinth Bucket Hat

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Half Double Crochet, Single Crochet,
    • Color: Brown,
  • Block Blanket Crochet

    Block Blanket Crochet

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Brand: Zeeman,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 6 mm (J-10),
    • Stitches: Front Loop Single Crochet, Half Double Crochet Front Loop, Single Crochet Back Loop,
    • Color: Brown, Gray, Green, Neutral, Orange, White, Yellow,
  • Block Blanket Knit

    Block Blanket Knit

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Brand: Zeeman,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Color: Blue, Gray, Green, Pink, White,
  • Crossroads Chunky Blanket

    Crossroads Chunky Blanket

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: WeCrochet,
    • Yarn Name: Swish DK,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4 mm (G-6),
    • Stitches: Double Crochet, Puff, Single Crochet,
    • Color: Gray, Green,
  • Half Double Moss Crochet Stitch

    Half Double Moss Crochet Stitch

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5 mm (H-8), 5.5 mm (I-9),
    • Stitches: Half Double Crochet,
    • Color: Pink,
  • Caesar Wrap

    Caesar Wrap

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5.5 mm (I-9),
    • Stitches: Tunisian Simple Stitch,
    • Color: Blue, Green, Neutral, Pink, Red,
  • Seafoam Hotpad Trivet and Coaster Set

    Seafoam Hotpad Trivet and Coaster Set

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Lion Brand,
    • Yarn Name: Re-Up,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 6 mm (J-10),
    • Stitches: Double Crochet, Single Crochet, Slip Stitch,
  • Easy Ripple Shawl

    Easy Ripple Shawl

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

    Inspire Shawl

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

    Infatuation Shawl

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5.5 mm (I-9),
    • Stitches: Double Crochet,
    • Color: Brown,
  • Puff Ripple Shawl

    Puff Ripple Shawl

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5.5 mm (I-9),
    • Stitches: Double Crochet, Puff,
    • Color: Blue,
  • Zigzag Sweater

    Zigzag Sweater

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5 mm (H-8),
    • Stitches: Double Crochet, Double Crochet Increase, Double Crochet Three Together,
    • Color: Blue, Pink, White,
  • Theory Cocoon Cardigan

    Theory Cocoon Cardigan

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Lion Brand,
    • Yarn Name: Color Theory,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5 mm (H-8),
    • Stitches: Double Crochet,
    • Color: Neutral,
  • Sunburst Square Bucket Hat

    Sunburst Square Bucket Hat

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Lion Brand,
    • Yarn Name: Jeans,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 3.75 mm (F-5), 4.5 mm (7),
    • Stitches: Double Crochet, Half Double Crochet, Half Double Crochet Two Together, Puff, Single Crochet, Single Crochet Two Together, Triple Crochet,
    • Color: Blue, White,
  • Nusa Mesh Net Crochet Sweater

    Nusa Mesh Net Crochet Sweater

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Caron Yarn,
    • Yarn Name: Caron Cakes,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 5 mm (H-8),
    • Color: Blue,
  • Raffia Summer Crochet Bag

    Raffia Summer Crochet Bag

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 7 mm,
    • Stitches: Half Double Crochet,
    • Color: Neutral,
  • 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,