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Tuesday Tip: How to Estimate your Yarn Yardage when Using the C2C Crochet Method

Happy Tuesday, crafters!

It’s been a little while since our last Tuesday Tip, but I thought this one would be useful for those who are new to the corner-to-corner crochet method of crochet.

If you’re doing the Whovian CAL, then you probably know that for this CAL, each of my squares are worked using the C2C method in double crochet. Naturally, with 30×30 squares, the squares of the Whovian CAL are turning out to be quite large. Some crafters prefer a smaller blanket, so they are working their squares in half-double crochet blocks or smaller.

But how do you know how much yarn you’ll need to use?

Here’s a tip that might seem obvious, but often escapes our crafty minds: measure your yarn.

That’s right–measure the amount of yarn you use up in a single block.

Now, a lot of things determine how much yarn you will need per block–hook size and tension, for example. So when you measure your yarn, make sure you are committed to your hook size and that you are in an average mood when you start to crochet (believe it or not, emotions affect your tension!).

Make a slip knot and place it on the end of your hook. Exclude the length of the tail end of your yarn for your measurement, since most of your blocks won’t have tail ends.

To start measuring, simply crochet your first block. To make the upcoming Harry Potter CAL a bit smaller (think twin-sized instead of queen), I’ve decided to work each block in half-double crochet.

Here’s how I measured for the Whovian CAL vs. the Harry Potter CAL:

  • Whovian CAL:
    • For the first block: Ch 6. DC in the 4th chain space from the hook and in the next 2 chain spaces. Block complete.
  • Harry Potter CAL:
    • For the first block: Ch 4. HDC in the 3rd chain space from the hook and in the next chain space. Block complete.

If you work a sample of each of these blocks and place them side-by-side, you’ll notice that the HDC block is noticeably smaller than the DC block, which has more stitches, all of which are taller stitches than the HDC.

To measure, simply place your finger at the end of the working end of the yarn where your first block ended (you can also mark this spot with a marker, if you wish). Frog your block by pulling out all of the yarn, but make sure the slip stitch you made at the start remains intact.

Use a measuring tape to measure the distance between the slip knot (starting point) and your finger/marker (ending point). This is the number of inches required for a single block. When in doubt, round up to the nearest inch.

You can multiply the number of inches per each block by the number of blocks total you will need for the square to find the total number of inches of yarn required for a square. For example, most of the squares for the Harry Potter CAL will be 25 blocks x 25 blocks, or a total of 625 blocks. Multiply that by the 15″ of yarn that it approximately takes me to make a single block and we end up with 9,375 inches of yarn. To find yardage, divide by 36 inches (or 3 feet). This results in an estimate of 260.4 yards of yarn per square.

For the larger center square of the Harry Potter CAL, we will have a total of 2,500 blocks, which is approximately 37,500 inches of yarn, or 1,041.7 yards.

Using these formulas, I am working on the yarn yardage chart for each square of the Harry Potter CAL.

I’m hoping to have the suggested yarns/yardage chart available in the next couple of weeks, but I’m still working on a few of the graphs. In the meantime, happy crafting!

3 thoughts on “Tuesday Tip: How to Estimate your Yarn Yardage when Using the C2C Crochet Method”

  1. This method is similar to what I did for a graphgan I made using sc. What I did a bit different was that i counted the blocks for each color to determine how much I needed of that color. Then I add another yard or more for cutting off ends and for having several spools of color , if necessary, I usually have about two to three inches of each yarn end for weaving in.

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