Hello all - I have a basic hat pattern for worsted weight. How would I be able to calculate how many more stitches would be needed to knit the hat in 3 weight (Bernat Baby Jacquard)? This is for an adult hat....

Thanks much!

http://www.mielkesfarm.com/bsic_hat.htm

I've used this formula and it works out well.

Ingrid - thanks!!! This is exactly what I needed :)