The pattern I have says the yarn is 100 meter per ball and I need 10 balls, I have 10 hanks that are about 70 yards each do I have enough? ALso my gauge is off size 11 is bigger than 4" if I use a 10 1/2 I get 4" would I use less yarn if I did it in the size 11?
According to this calculator, you would need about 16 balls of yarn to get the same yardage. (Note: I have not adjusted for needle size since you didn’t give specifics for that, but I’m guessing it wouldn’t change the outcome enough to make a difference.)
I think you either need to buy more yarn or use a different one. (Sorry.)
You use less yarn if you use a larger needle. I think 100 meters is more than 100 yards, though, so you just might need a few more hanks.
sue