Convert Any Photo Into a
C2C Crochet Pattern
Corner-to-corner crochet uses DC clusters as pixels — wider than tall. Most generators treat them as squares and your blanket comes out distorted. We apply the correct 0.7:1 DC ratio so the finished piece matches your image.
- 🧶DC cluster 0.7:1 ratio corrected — blanket matches image proportions, not a squashed version
- ✨Confetti reduction removes isolated squares that look bad in C2C and waste yarn
- 📊Dithering support — stippled C2C tiles simulate smooth gradients beautifully
- 🧵19cm yarn per DC stitch × count + fragmentation overhead = exact skeins per color
Used by C2C blanket makers and graphghan crafters
Photo to C2C Chart in 4 Steps
Upload Your Photo
Any image — portraits, landscapes, geometric designs, pixel art. JPG, PNG, or WebP. Bold designs with clear color blocks work best for C2C because each tile is larger than a SC stitch.
Select DC Stitch Type
Choose Double Crochet in the stitch selector — this applies the 0.7:1 C2C aspect ratio correction. Set grid width to 40-80 squares depending on your target blanket size.
Enable Dithering + Confetti Reduction
Dithering creates a beautiful stippled effect in C2C that simulates gradients. Set confetti to Heavy — isolated C2C squares look particularly bad and waste yarn on cuts and joins.
Download Your Chart
Free: watermarked chart. Pro ($4.99/mo): clean HD PNG + PDF with color legend, meters and skeins per color, and 50×50 section pages for easy printing and row tracking.
Built for C2C Crochet
C2C has different constraints than SC work — tile size, diagonal construction, and yarn consumption all differ.
DC Cluster Aspect Ratio
A double crochet cluster is roughly 0.7:1 width-to-height — wider than it is tall. Use a square grid for a C2C blanket and it'll be noticeably squashed. ArtPatt corrects this: when you select DC, the grid proportions are adjusted per your gauge so the crocheted result matches the original image.
Confetti Elimination
An isolated single-square color change in C2C means cutting yarn, joining new color for one tile, and weaving in two ends. At a large DC scale, these isolated squares are visually obvious too. Heavy confetti reduction merges isolated tiles with surrounding colors — cleaner fabric and fewer ends to weave in.
Dithering for C2C Gradients
C2C tiles are physically larger than SC stitches — typically 2.5-3cm each. At normal viewing distance, adjacent tiles blend together. This makes Floyd-Steinberg dithering exceptionally effective: scattered tiles read as smooth color transitions and gradients, giving a tapestry-like quality with fewer colors.
Accurate DC Yarn Estimates
DC uses ~19cm of yarn per stitch — significantly more than SC (12cm) because of the extra yarn wraps. C2C also has diagonal construction overhead. ArtPatt calculates per-color yarn consumption using DC rates, fragmentation overhead for scattered colors, and adds a 15% waste buffer. Know exactly how many skeins to buy before you start.
Real Blanket Dimensions
Enter your gauge (DC squares per 10cm) and the generator shows finished width and height for any grid size. Plan your blanket size before generating. A standard throw at 3cm per C2C square needs about 60 squares wide × 80 squares tall. The generator updates dimensions live as you drag the slider.
Color Swapping to Match Your Stash
The algorithmically chosen colors may not match what you have at home. Click any color in the palette to replace it from our searchable 120+ yarn database. Merge two similar colors to cut down on the number of bobbins per row. Preview updates instantly so you can see the effect before downloading.
C2C Crochet: Sizes, Yarn, and Pattern Tips
C2C (corner-to-corner) crochet starts with a single double crochet cluster at one corner and expands diagonally until reaching the center, then decreases back to a single cluster at the opposite corner. Each diagonal 'row' adds one square to the right edge and one to the top edge during the increase phase. This diagonal construction means your chart — which ArtPatt displays as a flat rectangle — maps to a diagonal working order.
For blanket sizing: at a standard DC gauge of roughly 10 C2C squares per 10cm, a 60-square-wide blanket = 60cm wide. Most C2C squares are slightly larger — 2.5-3cm — so 60 squares ≈ 150-180cm (60-70in). A twin-size blanket needs roughly 80×100 squares. Baby blankets work well at 40×50 squares. The generator's dimensions calculator removes all the guesswork.
Yarn for C2C: DC stitch type uses about 19cm of yarn per stitch, compared to 12cm for SC. A 60×80 square C2C blanket has 4,800 tiles — at roughly 6 DC per cluster, that's 28,800 stitches × 19cm = 5,472 meters total. At 200m per skein, that's 28 skeins across all colors. Per-color breakdown depends on your image — the generator calculates each one separately.
C2C vs SC Graphghan: Which Should You Choose?
Choose C2C if: you want a large blanket quickly (DC is faster than SC per square inch), your image has bold shapes and clear color blocks (low detail works well at C2C scale), or you want the distinctive raised-square texture that C2C produces. C2C works especially well for geometric designs, simple portraits, and bold graphics.
Choose SC graphghan if: you want maximum image detail (SC has more pixels per cm), you're working a portrait with fine details like facial features, or you prefer flat, even fabric without raised texture. SC takes longer but produces sharper, more detailed results at the same finished size.
What C2C Makers Say
“Every other generator gives me a squashed blanket because they don't account for DC stitch proportions. ArtPatt is the first one that actually looks right when I finish.”
Amanda R.
C2C blanket crafter
“The dithering mode transformed my landscape photos into gorgeous C2C patterns — the stippled tiles simulate the gradient beautifully at normal viewing distance.”
Tanya M.
Graphghan maker
“Per-color yarn estimates with DC rates saved me a separate calculation session. I bought exactly what I needed for a 70×90 square blanket on the first shopping trip.”
Donna S.
C2C enthusiast
C2C Pattern Generator FAQ
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Similar technique to C2C graphghans but for knitting colorwork.
Create Your C2C Crochet Pattern
Upload any photo. Select DC. DC ratio corrected automatically. Dithering optional. Yarn estimated. Free.