Crochet Hook 4.5 mm (7)

The 4.5 mm crochet hook – otherwise known as a size #7 hook – is used for lighter yarns, such as #2 Fine/Sport/Baby and #3 Light/DK/Worsted. This hook is great for any crochet project where you want a crochet project that is tight with little give or holes. Dishcloths, beanies, and sweaters all work up great with the 4.5 mm / 7 crochet hook.

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Free Crochet Patterns using 4.5 mm (7) Crochet Hooks

These free crochet patterns were all created using various yarn types and brands, but all use the 4.5 mm (7) sized crochet hook.

  • Giant Crochet Fortune Cookie

    Giant Crochet Fortune Cookie

    Free Crochet Pattern
    • Skill Level: 1. Basic, 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 5 – Bulky,
    • Hook Size: 4.5 mm (7),
    • Stitches: Single Crochet,
    • Color: Brown, Pink, White, Yellow,
  • Positano Crochet Mesh Shrug

    Positano Crochet Mesh Shrug

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Shell Stitch,
    • Color: Orange,
  • Jemimah Lace Shawl

    Jemimah Lace Shawl

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 1 – Super Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Knit Stitch, Tunisian Simple Stitch,
    • Color: Neutral, Pink,
  • Mum’s Heart

    Mum’s Heart

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Scheepjes,
    • Yarn Name: Stone Washed,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Simple Stitch,
    • Color: Pink,
  • Floral Cardigan

    Floral Cardigan

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Hobbii,
    • Yarn Name: Friends Cotton 8/6,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Half Double Crochet, Single Crochet, Triple Crochet,
    • Color: Neutral,
  • Labyrinth Poncho

    Labyrinth Poncho

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Mary Maxim,
    • Yarn Name: Mellowspun DK,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7), 5 mm (H-8),
    • Stitches: Double Crochet, Single Crochet, Single Crochet Back Loop,
    • Color: Black, Blue, Neutral, Variegated,
  • Cole’s Pumpkin Crochet Beanie

    Cole’s Pumpkin Crochet Beanie

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Half Double Crochet, Single Crochet Back Loop,
    • Color: Green, Orange,
  • 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 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,
  • Seda Triangle Bandana

    Seda Triangle Bandana

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Brand: Hobbii,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Double Crochet Increase,
    • Color: Variegated,
  • 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,
  • Franny Granny Square Sweater

    Franny Granny Square Sweater

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Hayfield,
    • Yarn Name: Bonus DK,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
  • 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,
  • Bee Worry Worm Crochet Pattern

    Bee Worry Worm Crochet Pattern

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Single Crochet, Single Crochet Back Loop,
    • Color: Black, White, Yellow,
  • 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,
  • 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,
  • Rosa Shawlette

    Rosa Shawlette

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Scheepjes,
    • Yarn Name: Stone Washed,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Simple Stitch,
    • Color: Pink,
  • Franny Granny Child Cardigan

    Franny Granny Child Cardigan

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Variegated,
  • Franny Granny Child Sweater

    Franny Granny Child Sweater

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Variegated,
  • Franny Granny Child Hoodie

    Franny Granny Child Hoodie

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Variegated,
  • Tunisian Heart Coaster

    Tunisian Heart Coaster

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Scheepjes,
    • Yarn Name: Stone Washed,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Simple Stitch,
    • Color: Pink,
  • Lovely Heart Coaster

    Lovely Heart Coaster

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Scheepjes,
    • Yarn Name: Stone Washed,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Simple Stitch,
    • Color: Pink,
  • 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,
  • 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,
  • 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,
  • 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,
  • 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,
  • Easy Crochet Ombre Shell Stitch Baby Blanket

    Easy Crochet Ombre Shell Stitch Baby Blanket

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Lion Brand,
    • Yarn Name: Mandala,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Single Crochet,
  • Helen Shawl

    Helen Shawl

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Scheepjes,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Purl Stitch, Tunisian Simple Stitch,
    • Color: Orange,
  • Crochet Backless Crop Top Pattern

    Crochet Backless Crop Top Pattern

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Single Crochet, Slip Stitch,
  • Ela Facecloth Set

    Ela Facecloth Set

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Stylecraft,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Purl Stitch, Tunisian Simple Stitch,
    • Color: Pink,
  • Blossom Shawl

    Blossom Shawl

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Mary Maxim,
    • Yarn Name: Mellowspun DK,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Half Double Crochet,
  • Deidra Sweater

    Deidra Sweater

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: Knit Picks, WeCrochet,
    • Yarn Weight: Weight 4 – Medium,
    • Hook Size: 4.5 mm (7), 5 mm (H-8),
    • Stitches: Half Double Crochet, Half Double Crochet Back Loop, Single Crochet, Slip Stitch,
    • Color: Pink,
  • Misty Sunrise Shawl

    Misty Sunrise Shawl

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Weight: Weight 1 – Super Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Knit Stitch, Tunisian Simple Stitch,
    • Color: Gray, Yellow,
  • Spring Crochet Scarf

    Spring Crochet Scarf

    Free Crochet Pattern
    • Skill Level: 1. Basic,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet, Half Double Crochet Two Together, Single Crochet,
  • Bingley Hat

    Bingley Hat

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Brand: Mary Maxim,
    • Yarn Name: Mellowspun DK,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Half Double Crochet, Half Double Crochet Back Loop, Slip Stitch, Slip Stitch Back Loop,
    • Color: Blue, Brown, Gray, White,
  • Mishelka Blanket

    Mishelka Blanket

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 2 – Fine,
    • Hook Size: 4.5 mm (7),
    • Stitches: Tunisian Simple Stitch,
    • Color: Pink,
  • Crochet Diamond Mesh Top

    Crochet Diamond Mesh Top

    Free Crochet Pattern
    • Skill Level: 2. Easy,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Double Crochet,
    • Color: Green,
  • Herringbone Moss Sweater

    Herringbone Moss Sweater

    Free Crochet Pattern
    • Skill Level: 3. Intermediate,
    • Yarn Brand: WeCrochet,
    • Yarn Name: Swish DK,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4.5 mm (7),
    • Stitches: Herringbone Half Double Crochet, Moss / Linen, Single Crochet, Slip Stitch,
    • Color: Gray, Green, White,
  • Crochet Kitchen Towel

    Crochet Kitchen Towel

    Free Crochet Pattern
    • Skill Level: 2. Easy, 3. Intermediate,
    • Yarn Weight: Weight 3 – Light,
    • Hook Size: 4 mm (G-6), 4.5 mm (7),
    • Stitches: Half Double Crochet, Single Crochet, Slip Stitch,
    • Color: Gray, White, Yellow,


Common Questions About 4.5 mm (7)

Here we answer some common questions about 4.5 mm (7).

How many millimeters is the 7 sized crochet hook?

Answer: Unfortunately, crochet hook manufacturers have not kept this standard. Some #7 size hooks are 4.5mm while others are 4.75mm. Both of these are considered the correct size for a #7 US hook .