Crochet Hook 6 mm (J-10)

This is the Easy Crochet archive for free crochet patterns using the J/10 hook size. The J-10 hook size is also known as the 6 mm metric and UK 4 hook. We recommend using the J hook with Medium weight yarn (Worsted, Afghan or Aran).

The J-10 / 6 mm / UK4 hook is the perfect size for making everything from baby blankets to scarves to ear warmers.

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Free Crochet Patterns using 6 mm (J-10) Crochet Hooks

These free crochet patterns were all created using various yarn types and brands, but all use the 6 mm (J-10) sized crochet hook.

Easy Tweedy Adult Sweater

Easy Tweedy Adult Sweater

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Brava Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet Back Loop,
  • Color: Brown, Gray, Green, Neutral,
Compostela Blanket

Compostela Blanket

Free Crochet Pattern
  • Yarn Brand: Zeeman,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet, Single Crochet Back Loop,
  • Color: Green, White,
Easy Tweedy Ear Warmer

Easy Tweedy Ear Warmer

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Brava Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Slip Stitch,
  • Color: Blue, Gray, Pink, Variegated,
Easy Tweedy Hat

Easy Tweedy Hat

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Brava Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet, Slip Stitch,
  • Color: Blue, Gray, Pink, Red,
Crochet Hooded Cowl

Crochet Hooded Cowl

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Hue + Me,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet, Single Crochet Two Together, Slip Stitch, Slip Stitch Back Loop,
  • Color: Blue, Green,
Granny Basket

Granny Basket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hobbii,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Single Crochet,
  • Color: Blue, Green, Red, White,
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,
Hop Bunny Hooded Crochet Blanket

Hop Bunny Hooded Crochet Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet,
  • Color: Brown,
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,
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,
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,
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,
Derby Blanket

Derby Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hayfield,
  • Yarn Name: Dreambaby DK,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 4 mm (G-6), 6 mm (J-10),
  • Stitches: Tunisian Purl Stitch,
  • Color: Blue, Green, Pink, White, Yellow,
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,
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,
Faraway Lace Poncho

Faraway Lace Poncho

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 2 – Fine,
  • Hook Size: 6 mm (J-10),
  • Color: Blue, Green, Variegated,
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,
Hug Me Bear Children’s Hooded Sweater

Hug Me Bear Children’s Hooded Sweater

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Double Crochet Increase,
  • Color: Brown, White,
Tunisian Lacy Shell Wrap

Tunisian Lacy Shell Wrap

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 6 mm (J-10),
  • Color: Blue,
Kid’s Crochet Crown

Kid’s Crochet Crown

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Shell Stitch, Single Crochet,
  • Color: Yellow,
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,
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,
The Banbury Drape Oversized Crochet Cardigan

The Banbury Drape Oversized Crochet Cardigan

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Feels Like Bliss,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
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,
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,
Free Hedgehog Amigurumi

Free Hedgehog Amigurumi

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Weight: Weight 6 – Super Bulky,
  • Hook Size: 5 mm (H-8), 6 mm (J-10),
  • Stitches: Single Crochet, Slip Stitch,
  • Color: Black, Brown, Neutral,
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,
Radley Tunisian Hat

Radley Tunisian Hat

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Weight: Weight 5 – Bulky,
  • Hook Size: 6 mm (J-10), 6.5 mm (K-10.5),
  • Stitches: Tunisian Knit Stitch, Tunisian Purl Stitch,
  • Color: Pink, Red,
Tunisian Crossed Basketweave Cowl

Tunisian Crossed Basketweave Cowl

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Tunisian Knit Stitch, Tunisian Purl Stitch, Tunisian Simple Stitch,
  • Color: Green, Red,
Moon and Stars Tunisian Crochet Blanket

Moon and Stars Tunisian Crochet Blanket

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Stylecraft,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 6 mm (J-10),
  • Stitches: Tunisian Purl Stitch, Tunisian Simple Stitch,
  • Color: Blue, Gray, Orange,
Mustard and Co Tunisian Crochet Blanket

Mustard and Co Tunisian Crochet Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet, Tunisian Knit Stitch, Tunisian Purl Stitch, Tunisian Simple Stitch,
  • Color: Blue, Gray, Purple, Yellow,
Broken Bricks Cowl

Broken Bricks Cowl

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: 6 mm (J-10),
  • Stitches: Tunisian Knit Stitch, Tunisian Purl Stitch, Tunisian Simple Stitch,
  • Color: Green, Neutral,
Modern Colorful Baby Blanket Crochet Pattern

Modern Colorful Baby Blanket Crochet Pattern

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Red Heart,
  • Yarn Name: Unforgettable,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Single Crochet,
  • Color: Variegated,
Daydream Square

Daydream Square

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: Lion Brand,
  • Yarn Name: Color Theory,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Double Crochet Increase, Half Double Crochet, Single Crochet, Slip Stitch Back Loop,
  • Color: Brown, Gray, Pink,
Ahavah Baby Blanket

Ahavah Baby Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Yarn and Colors,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Color: Brown, Pink, Variegated, White,
Easy Crochet Hot Pads with Handles

Easy Crochet Hot Pads with Handles

Free Crochet Pattern
  • Skill Level: 1. Basic,
  • Yarn Brand: Yarnspirations,
  • Yarn Name: Lily Sugar’n Cream,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet,
  • Color: Neutral,
Tea and Biscuit Blanket

Tea and Biscuit Blanket

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Brand: Hayfield,
  • Yarn Name: Bonus DK,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 6 mm (J-10),
  • Stitches: Double Crochet, Single Crochet, Slip Stitch,
  • Color: Brown, Neutral,
Solstice Scarf

Solstice Scarf

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: Half Double Crochet Back Loop,
  • Color: Neutral, White,
Rainbow Babygrow

Rainbow Babygrow

Free Crochet Pattern
  • Skill Level: 2. Easy,
  • Yarn Weight: Weight 3 – Light,
  • Hook Size: 6 mm (J-10),
  • Stitches: Slip Stitch,
  • Color: Variegated,
Spofforth Sweater

Spofforth Sweater

Free Crochet Pattern
  • Skill Level: 3. Intermediate,
  • Yarn Brand: WeCrochet,
  • Yarn Name: Heatherly Worsted,
  • Yarn Weight: Weight 4 – Medium,
  • Hook Size: 6 mm (J-10),
  • Stitches: Half Double Crochet, Half Double Crochet Back Loop, Single Crochet, Slip Stitch,
  • Color: Blue,