This depends on the yarn.
To give you a comparison, here are 3 different weight yarns (from Lion Brand web site). As you can see, even weight is not a firm determining factor in figuring the number of yards, although I would venture to say in most cases a lighter weight yarn will have more yards to the ounce.
Vanna's Glamour® #2 sport weight
1.75 oz./50 g (202 yd/185 m)
Jamie® #3 DK Light worsted
Solids: 1.75 oz (50 g), 137 yd (125 m)
Amazing® #4 worsted
1.75 oz./50 g (147 yd/135 m)
They can't be compared. A yard is a distance, an ounce is a weight. The length of 2 ounces of yarn would depend upon the thickness of the yarn and the type of material the yarn is made of (lambs wool, acrylic, etc). I have had some luck when substituting a yarn with a replacement that was an equivalent grams per meter (ounces per yard).
Depends on the yarn. There is yarn that is 100% cotton, but cotton/rayon mixes and other mixes are common.
There should be 836 yards in a package of 16oz of yarn.
10.6 ounces.
160 balls of yarn at 50 grams each weighs a total of 282.19 ounces or 17.64 pounds.
depends how big the yard is.
Your answer depends on the weight of the yarn.Thread weight yarn will weigh less than bulky weight, given 'five balls' of each.
Ounces and yards are not compatible.
Well, honey, a yard is a unit of length, not weight. It's like asking how many apples are in a kilometer. So, to answer your question, there are 0 ounces in a yard because they measure totally different things.
About 1.7 to 1.9 ounces. http://www.crochet-world.com/blog/?p=7272
it depends on what size and type of hat. be more specific.
To determine the weight of yarn without a label, you can use a scale to measure the yarn's weight in ounces or grams.