This question isn't very clear, as Unger Cruise is a Belgium made yarn, imported into the US (Unger yarns in New York). And yet, the question also mentions "size 3 [knitting] needles" which is a bit confusing without explanation as to why that is included
A Cruise yarn skein is generally 1.4 ounces or 40 grams, 60% acrylic and 40% nylon.
However, patterns found for this yarn generally use U.S. size 3 or size 4 needles and have a gauge of 19 stitches for 3 inches of knitting with 2 inches in height making 17 rows.
Therefore, a size 3 knitting needle is perfectly fine to use with the Unger Cruise yarn.
21 TC =4" : 9 rows
The ball band on yarn often tells you what size needles it is suitable for.
I'll assume your question is: What WEIGHT is Unger Madelaine yarn? Answer: Bulky/12 ply.
Your answer depends on the yarn you choose for your project.
Your answer depends on the gauge that you knit with the yarn and needles that you want to use and the size of the afghan that you want to make.Can you do the math?
It appears that there is no readily available answer to this specific yarn (Unger's Roxanne). The reason is that Unger's went out of business, got bought out by another company, or another reason. One way to figure out what the yarn weight of a ball of yarn would be to knit a stockinette gauge swatch, (or a crochet gauge swatch), then by counting the stitches, for four inches, and dividing by 4, you get an average stitches per inch. From there find your yarn weight at the Yarn Council recommended standards to get a guess at the yarn weight, ---Otherwise, take the yarn to your local yarn shop and see what weight they guesstimate for you <--this is probably your best bet at finding your yarn weight and information, btw
The materials needed for knitting socks include the proper size knitting needles and yarn. There are many different types of yarn to choose from including wool sock knit yarn, hand dyed yarn, acrylic yarn, and cotton yarn.
Your gauge will be different and the size of the garment will be different, unless you accommodate the larger needles with a new gauge, and recalculate the fit.
Crochet needles, going on the numbered U.S. system range from one to ten in size.
The action of putting front-sitting yarn to back, between the two needles.
To finish your yarn project and remove your needles from the yarn, you will need to bind off your project.
The pattern usually contains a gauge -- numbers of stitches vertically and horizontally based on needle size and yarn weight -- that you can adjust.Determine your gauge given the needles and yarn you want to work with, then do the comparative math based on the gauge you see in the pattern.