Ok, I have planned on making a children's sweater, size 4, and went and bought some cute fun looking yarn that I think will look great. My dilema is that the yarn is rated a "3" and the yarn they required for the sweater (which I honestly didn't think to check before buying the yarn) was a "4", or worsted weight size.
So, my question has to do with switching the pattern so that I can use the smaller size yarn and still get the correct size of the finished sweater. I don't want to double the yarn and I'm not good at math.
I am hoping some of the more experienced knitters out in blogland can help me. I'm not sure what to do. The required size needles to get the gauge was 5mm, and I tried 5, 5.5, and 6 and still did not get the required size. I am thinking the higher up I go in needles the more loose the knitting will be with this yarn and I don't want that. The gauge the size "4" yarn is supposed to get is 18 stitches equal to 4 inches. For me on 5.0 mm, 18 inches only gave me 2 inches.
So, would I simply double all numbers then - that is instead of casting on whatever they said to, would I double that? What about for length (you know where is says knit until it measures however many inches)?
Can someone lend a hand and guide me through this? Can it even be done?