Free C2C crochet patterns (corner to corner crochet squares, letters + more)
Want a fun way to turn small crochet squares into big, wow projects? C2C crochet (also called corner-to-corner crochet) is a simple technique that builds your design one square at a time—perfect for bold shapes, clean color changes, and mix-and-match crochet squares.
On this page, you’ll find free C2C crochet patterns organized by size, so you can grab the exact square you need and start creating right away. Make one square today… or make a whole blanket later. Either way works! Use the table of contents at the top to jump to the section you need.
Start here: Use the table of contents above to jump to the C2C crochet squares by size, plus C2C letters, numbers, and other corner-to-corner crochet patterns.
What is corner-to-corner crochet (C2C)?
corner-to-corner crochet (C2C) is a crochet method where you start in one corner and work your way to the opposite corner. Instead of crocheting long rows from side to side, you build the project diagonally by adding one square at a time.
C2C is popular because it’s easy to make color changes, and it’s simple to follow along with a graph. Once you learn the basic rhythm (increase, then decrease), you can use the same steps to make all kinds of projects—from small squares to full blankets.
New to C2C? Start with my video tutorial
New to C2C crochet? You’re in the right place! corner-to-corner crochet is easier than it looks, and once you learn the basic steps, you can use the same method for so many different designs.
In my video tutorial, I’ll walk you through the C2C basics step by step—how to start in the corner, how to increase, how to decrease, and how to keep your edges neat. After you watch, come back to this page and pick a C2C crochet pattern to try first (mini squares are a great warm-up, and medium squares are perfect for your first bigger project!).
Ways to use C2C crochet patterns
Not sure what to make first? Here are easy, popular project ideas people search for (and pin!) all the time:
- C2C crochet blanket squares (mix-and-match squares)
- corner-to-corner crochet baby blankets
- Pillow covers (one square on the front, solid color on the back)
- Tote bags (two matching squares + straps)
- Wall hangings (one large square + dowel)
- Coasters and mug rugs (mini squares)
- Placemats and table runners (repeat squares in a row)
- Name blankets and birthday blankets (use letters + numbers)
Medium C2C crochet squares (25 x 25)
Here you’ll find medium-sized C2C crochet square patterns that are great for blanket squares, pillow covers, wall hangings, and tote bags. Mix and match because they’re all the same size—so it’s easy to build a set that looks custom and intentional.
Graph size: 25 x 25 squares
Finished size: about 13″ x 13″
Mini C2C crochet squares (9 x 9)
These mini squares are small, quick, and super versatile. Use them for baby blankets, pillows, small wall hangings, and fun extras like coasters, placemats, potholders, or gift add-ons.
Graph size: 9 x 9 squares
Finished size: about 5″ x 5″
Large C2C crochet squares (40 x 40)
Ready for bold projects? These large squares are made for statement blankets, oversized pillows, and eye-catching wall hangings. Since each square is the same size, you can plan a layout, swap colors, and create a totally unique look.
Graph size: 40 x 40 squares
Finished size: about 22″ x 22″
Other corner-to-corner crochet patterns
This section includes corner-to-corner crochet designs that don’t fit into my mini, medium, or large square categories. Some are rectangles, some are larger squares, and others are a unique size depending on the project.
These C2C crochet patterns are great when you want something a little different than standard squares—like a panel for a tote bag, a bold pillow front, a table runner, a wall hanging, or a smaller throw. Just check the finished size listed in each pattern so you can choose the best fit for what you’re making.
C2C letters
Use these corner-to-corner crochet letter squares to personalize name blankets, monogram pillows, and custom wall decor.
C2C numbers
Add numbers for birthday blankets, graduation years, classroom projects, and learning games.
FAQ about C2C crochet
What is C2C crochet?
C2C crochet (corner-to-corner crochet) is a technique where you crochet from one corner to the other, building the fabric diagonally in small squares.
Is corner-to-corner crochet beginner-friendly?
Yes! Many C2C projects use simple stitches (often double crochet) and repeat the same steps as you increase and then decrease.
Do C2C crochet patterns use graph or written instructions?
Often both. Many patterns include a graph (each square represents one C2C square) and/or row-by-row written instructions.
Why is C2C crochet great for pixel designs?
Because the squares line up like pixels, C2C is perfect for clean color changes and bold, graphic designs.
How do I change colors in a C2C crochet pattern?
Most C2C designs change colors at the edge of a square, which helps keep color squares neat. If your pattern includes a graph, you’ll change colors wherever the graph changes.
How do I join C2C crochet squares?
You can sew squares together, slip stitch them together, or use a join-as-you-go method—depending on the look you want.
Can I resize these squares?
Yes. Use a smaller yarn and hook for a smaller square, or thicker yarn and a larger hook for a bigger square. Your stitch tension (gauge) will affect the final size, too.
How much yarn do I need for a C2C blanket?
It depends on the blanket size, your yarn weight, and your stitch tension. As a quick guide, a baby blanket often takes about 800–1,500 yards, a throw blanket is usually around 1,500–3,000 yards, and a twin-size blanket can be 3,000+ yards. The best way to estimate is to crochet a small C2C swatch, measure it, and use it to help plan how many skeins you’ll need.
What yarn is best for C2C crochet?
For most C2C projects, worsted weight (#4) acrylic or cotton-blend yarn is a great choice. It’s easy to work with, shows the “squares” clearly, and holds up well for blankets, pillows, and tote bags. If you want a softer blanket, a smooth acrylic works great. For coasters, placemats, and potholders, cotton yarn is usually best because it’s more heat-resistant and absorbs moisture better.
Are these C2C crochet patterns free?
Yes—all of my C2C crochet patterns are free on my blog.
More free crochet patterns
Looking for more free patterns to try next? Explore these popular categories:
- Free crochet hat patterns
- Free crochet blanket patterns
- Free crochet patterns for cats
- Free crochet patterns for baby & kids
- Free crochet accessory patterns
- Free crochet home decor patterns
- Free crochet applique patterns
- Free crochet square patterns
Let’s connect!
I’d love to see what you’re making! Share your finished project and follow along for more free crochet patterns and tutorials.
📌 Don’t forget to pin this pattern for later!
Happy crocheting! 🧶
— Melissa
