Creating a crochet pattern for a baby cardigan involves a mix of design planning, stitch knowledge, and accurate sizing. Here’s a detailed guide on how to make your own crochet baby cardigan pattern, from concept to finished pattern writing.

How to Make a CROCHET PATTERN for a Baby Cardigan
Step 1: Plan the Design
1.1 Choose Style:
Decide on the cardigan type:
- Open front or buttoned
- Raglan, set-in sleeve, or drop shoulder
- Hooded or collarless
- Texture: Plain, lace, bobble stitch, stripes, etc.
1.2 Choose Yarn & Hook:
- Yarn weight: DK (light worsted) or worsted weight is common
- Fiber: Cotton or soft acrylic for babies
- Hook size: Usually 4.0 mm – 5.5 mm (G – I)
1.3 Select Stitches:
Choose basic and decorative stitches:
- Single crochet (sc), half double crochet (hdc), double crochet (dc)
- Puff, shell, or bobble stitches for texture
- Ribbing for cuffs/borders: slip stitch, back loop sc, or front/back post stitches
Step 2: Take Measurements and Make a Gauge Swatch
2.1 Standard Baby Sizes (0–3 months):
- Chest: 16 in (40.5 cm)
- Total length: 8–9 in (20–23 cm)
- Sleeve length: 6–7 in (15–18 cm)
2.2 Gauge Swatch:
Make a 4″ x 4″ (10×10 cm) swatch in your chosen stitch.
Measure how many stitches and rows fit in 4″.
Example:
Gauge: 16 stitches x 12 rows = 4″ (10 cm) using hdc

Step 3: Draft the Construction
You can construct the cardigan in one of several ways:
Option A: Top-Down Raglan (Most Common)
Made in one piece from neckline down with yoke increases.
Sections:
- Chain for neckline
- Use stitch markers to divide into:
Front Left / Sleeve / Back / Sleeve / Front Right - Increase at raglan points each row (e.g., 2 dc, ch 1, 2 dc)
- When yoke is deep enough, separate sleeves and continue body
Option B: Seamed Panels (Front, Back, Sleeves)
Create each piece separately and seam them together.
Step 4: Do the Math
Use your gauge to calculate stitch counts:
- Multiply desired width by stitches per inch
- Example: 16″ chest ÷ 2 = 8″ front
If gauge = 4 sts/inch: 8″ x 4 = 32 stitches per front panel

Step 5: Write the Pattern
Write the pattern row by row or round by round.
Include:
- Materials needed (yarn brand/weight, hook, buttons)
- Gauge swatch instructions
- Finished measurements
- Abbreviations used
- Stitch count at end of rows
- Assembly instructions (if seamed)
- Optional embellishments (like button bands or edging)
Example Snippet of a Baby Cardigan Pattern (Top-Down Raglan):
Size: 0–3 months
Yarn: DK weight, 200g
Hook: 4.0 mm (G)
Gauge: 16 sts x 12 rows = 4” in hdc
Abbreviations:
ch = chain
hdc = half double crochet
st = stitch
rep = repeat
Yoke:
Ch 46.
Row 1: Hdc in 2nd ch from hook and each ch across (45 sts).
Row 2: Ch 1, turn. *Hdc in each st to raglan marker, (hdc, ch 1, hdc) in ch-1 space* repeat 4 times, hdc to end.
Rep Row 2 until you have 10 raglan rows or desired yoke depth.
Separate sleeves:
Work across front, skip sleeve sts, chain underarm, work across back, skip other sleeve, chain underarm, work other front.
Continue body in hdc rows until desired length.
Step 6: Add Finishing Touches
- Add a ribbed hem or edging
- Crochet button bands and sew buttons
- Weave in all ends
- Block the cardigan lightly

Step 7: Test & Publish the Pattern
- Test your pattern or send it to testers
- Add size variations (3–6 months, 6–12 months, etc.)
- Provide diagrams or photos for clarity
- Format it neatly in PDF or blog format
- Share or sell your pattern on Ravelry, Etsy, or your blog
Tips for Success
- Use stitch markers to track increases
- Always count stitches to keep symmetry
- Keep notes as you go to write a clean pattern
- Babies grow fast — add a little ease to the sizing
- Wash and block the cardigan to check real dimensions
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