Q&A for How to Knit an Infinity Scarf

Depends on what you are knitting. If it is above 7 stitches, use bigger knitting needles.

It depends on how long you want your scarf. The more stitches, the longer the scarf. Cast on as many stitches as you need for the pattern you're using and the length you want the scarf to be. Generally just cast on until you reach the length you want, then give it the twist and join. If the pattern calls for a certain number of stitches though, then you'll need to do some math. Figure out the gauge and measure how long it needs to be. For example, one pattern I've used calls for increments of 6. They recommend 46 repeats of the stitch or 276 stitches to be cast on.

Why not? According to the instructions I've seen for this stitch, any odd number of stitches will work. I don't think it will work in the round, but that doesn't stop you from creating a simple scarf and joining it after to be an infinity scarf.

You can twist the stitches if you want a mobius scarf, but that isn't what makes it an infinity scarf. What makes it an infinity scarf is when the end product is a complete circle instead of being flat.

This depends on the kind of yarn you use. Most yarns will have an indication of how they work up on the label (showing how many inches you get in two dimensions for a set number of stitches and rows). You could also make a test piece - cast on some 10 stitches and go back and forth a row or 5 or 10, however much you need to get an idea of how much surface you get with how many stitches. Pull out and see how much yarn you used. Then calculate how much yarn you need for the length and width of the scarf you want.

It's another term for the yarn's color or the color(s) listed on the yarn label.

As a rule of thumb for regular scarves, it should be at least as long as the person is tall. So if you want the scarf to be wrapped around the child's neck a couple of times, go with that.

A knit stitch is made when the needle goes to the left of the stitch thread on the left needle. A purl stitch goes to the right of the stitch thread on the left needle. Review online videos to make sure you have the needles correctly positioned.

The knitting was done by knitting needle, but the yarn left over after the cast off has to be sewed in. This is so that you don't have an extra long strand of yarn hanging out of the scarf. To sew it in you can use a crotchet hook or a needle (sewing needle).

Follow the recommended needle size on the yarn label. Most 4 ply yarns can be worked with 4.5 mm; 5 mm or 5.5 mm needles. For a loose lace effect, use a 6 mm or 6.5 mm needle with a 3 ply yarn.

Just knit it normally, but if it does concern you, don't cast on as many stitches, otherwise the final product will turn out bulkier than you want it to be.