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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Lemon Zest Blanket

Lemon Zest Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Zeeman,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: White, Yellow,
Urban Rib Scarf

Urban Rib Scarf

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hobbii,
  • Yarn Name: Upcycle Alpaca Blend Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
  • Color: Neutral,
Granny Square Border Blanket

Granny Square Border Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Zeeman,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8), 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Green, Red, White,
Caramel Comfort Throw Blanket

Caramel Comfort Throw Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Heartland,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Color: Neutral,
Tudor Times Crochet Bauble

Tudor Times Crochet Bauble

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Color Theory,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 2.75 mm (C-2),
  • Stitches: Double Crochet, Single Crochet, Single Crochet Back Loop,
  • Color: White, Yellow,
Samara Headband

Samara Headband

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5.5 mm (I-9),
  • Stitches: Tunisian Knit Stitch, Tunisian Purl Stitch,
  • Color: Red,
The Autumn Pillow

The Autumn Pillow

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hobbii, Lion Brand,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 5 mm (H-8),
  • Stitches: Bobble, Double Crochet, Half Double Crochet, Puff, Slip Stitch, Triple Crochet,
  • Color: Neutral, Variegated,
Blakeley Poncho

Blakeley Poncho

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Knit Picks,
  • Yarn Name: Heatherly Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 7 mm,
  • Stitches: Double Crochet, Half Double Crochet, Half Double Crochet Back Loop, Half Double Crochet Front Loop,
  • Color: Neutral,
Cobblestone Pathways Throw

Cobblestone Pathways Throw

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Red Heart,
  • Yarn Name: I Love This Yarn,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 40 mm, 6 mm (J-10),
  • Stitches: Double Crochet, Moss / Linen,
  • Color: Neutral,
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 Pattern

Cool Crochet Balaclava Pattern

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,


Common Questions About Weight 4 - Medium

Here we answer some common questions about Weight 4 - Medium.

What is Worsted Weight Yarn?

Answer: Worsted weight yarn is also known as medium weight #4 weight yarn. It also includes yarns that are labeled as afghan and aran. Learn More...

What is the Worsted Weight Yarn Number?

Answer: Worsted weight yarn (medium) is known as a #4 weight yarn.