The Infinity Cast On Method

No tail estimating. No yarn chicken. No starting over.

One of the most frustrating parts of starting a knitting project isn’t the knitting at all—it’s guessing how much yarn you’ll need for your cast on.

Too short? You’re ripping it out and starting again.
Too long? You’re left with a giant tail that quietly steals yardage from the rest of your project.

The Infinity Cast On Method solves both problems by using both the inside and outside strands of a single ball of yarn. The result is a clean, flexible cast on with zero tail estimating and no wasted yarn.

Why Use the Infinity Cast On?

This method is ideal when:

You don’t know how many stitches you’ll cast on

Your pattern requires a long cast on

You’re working close to the end of your yardage

You want a tidy, balanced edge without excess tail

What you get:

✨ Continuous yarn supply

✨ No guessing or measuring

✨ No restarting

✨ No surprise shortage at the end of your project

Materials

One ball or cake of yarn

Knitting needle(s) appropriate for your project

That’s it.

How the Infinity Cast On Works

You’ll pull two working strands from the same ball of yarn:

One strand from the outside

One strand from the center pull

These two strands behave exactly like a traditional long-tail cast on—except they’re both connected to the ball, creating a virtually endless supply of yarn.

Step-by-Step: Infinity Cast On Method

Step 1: Pull Two Strands

From your yarn ball:

Pull one strand from the outside

Pull one strand from the center

Hold them together as if they were a long tail and working yarn.

Step 2: Position Your Hands

Place the inside strand over your thumb

Place the outside strand over your index finger

Hold both strands together in your palm, just like a long-tail cast on setup

Tip: If you’re comfortable with the long-tail cast on, this hand position will feel instantly familiar.

Step 3: Cast On as Usual

Using your needle:

1. Go under the thumb strand

2. Over the index finger strand

3. Back through the thumb loop

4. Drop the loop off your thumb and snug the stitch

Repeat until you have the required number of stitches.

No counting tail length. No stopping to check yardage.

Step 4: Transition to Knitting

Once all stitches are cast on:

Choose one strand to continue knitting with (usually the front or thumb strand)

Break the other strand

Continue knitting per the usual

What Does the Edge Look Like?

The Infinity Cast On produces a balanced, flexible edge similar to a standard long-tail cast on. It works beautifully for:

• Cowls and scarves

• Sweaters and garments

• Large stitch counts

• Mystery or adaptable patterns

Common Questions

Will this leave a loop or gap?
No. Once you transition to knitting with a single strand, the cast-on edge behaves normally.

Does it work for ribbing?
Yes! If you normally use long-tail for ribbing, this is a perfect substitute.

Is it beginner-friendly?
Absolutely—especially for knitters who struggle with estimating tail length.

When I Reach for This Method

I use the Infinity Cast On anytime:

I’m casting on a lot of stitches

I don’t trust my yardage math

I want to start calmly, without ripping out

It’s one of those small technique shifts that quietly makes knitting more enjoyable.

Want to See It in Action?

If you’re a visual learner, I recommend watching this tutorial. Once you try it, this method may become your new default cast on.

Happy knitting 🧶