While there are general standards, there are no absolute standards for the amount of yarn in either a skein or a hank.
The amount depends on the weight of the yarn and which fibres are including in its spinning.
hank
Yarn comes in different "gatherings"--ways that it can be sold. Your question mentioned 2 out of the three: ball of yarn and skein of yarn. The third would be a Hank of yarn. A hank is a skein of yarn (which is yarn in a large oblong shape, and tied in a few places around the skein to maintain a bit of control over the yarn staying in that loose shape), which has been twisted around itself to make for a smaller and more controllable yarn, which is easier to pack, and store. A hank also is a bit more manageable than a skein of yarn. A ball of yarn would be wound from a skein or a hank.
Another name for a hank of yarn would be a skein of yarn.
A coil of yarn may be called a hank or a skein. Yarn is typically sold in a ball or a skein. A hank is different in that it is a big loop of yarn that is twisted up for easy shipping.
You could use hank or ball.
what they actually mean and what is usage is two different things .. a bundle is one skein or one hank .. some people will put one very large hank and call it a bundle .. others will put many skeins tied together and call it a bundle .. the one thing the usually have in common is you have to wind them .. they are not pull skeins .. if someone says they have a bundle you will have to ask what exactly they are offering you .. but be prepared to wind ..
After yarn is spun it is wound into a skein on a niddy-noddy or skein winder. A skein is a coil of yarn wound like a garden hose, with a circumference usually of 1-2 yards. Before it is used for knitting, a skein is placed on a yarn swift which spins freely as the yarn is pulled from it, and the yarn is then wound into a center-pull ball, or cake with a nostapinne or ball winder. Alternately, an unwitting spouse can be used as a substitute swift by placing the skein of yarn over his hands and directing him to slowly move his hands side to side as the yarn is pulled off by the person winding. The back of a chair might also be used as a substitute swift. Commercially prepared yarns already wound into a center-pull tube-less cone are often mistakenly called "skeins" because they resemble skeins that have been twisted for storage and because they lack the cardboard core typical to cones.
The length of yarn in a skein varies greatly with brand, variety, etc. You can determine the length of the yarn by looking on the front of the label, where it is listed along with weight, recommended needle/hook size and dye lot
Hank Parker's Outdoor Magazine - 1985 Making a Difference was released on: USA: 8 March 2013
Answer: Most yarns that you will find at the big craft store chains or at discount stores that sell yarn comes either in a ball or a skein. A ball is literally a round conglomeration of yarn. The yarn can be pulled from the outside of the ball, and sometimes from the inside as well. A skein is similar to a ball but it is formed into an oblong shape. It's the classic shape most people think of when they think of yarn. Yarn can be pulled either from the outside or the inside of a skein of yarn. A hank is a different way of selling yarn in which the yarn is loosely wound into a large ring shape and then twisted on itself to make a package that's easy to ship and store. Untwist the hank and you'll find yourself faced with a big ring of yarn that needs to be wound into a ball before it is used. Hanks, balls and skeins are all fine to work with; one is not a better choice than the others. Many luxury yarns and high-quality yarns are only available in hanks, so you'll have to work with one sooner or later.
A skein is the small bundle one would buy at a craft store.A hank is a bundle of skeins. Defined as follows:a traditional measure of length for yarn. The length of yarn in a hank varies with the market and the material; for example, a hank of cotton yarn traditionally included 840 yards (768 meters) of yarn, while a hank of wool yarn was 560 yards (512 meters). For both cotton and wool, these traditional hanks are equal to 7 leas or to 12 cuts. In the U.S., however, a hank of woolen yarn is generally 1600 yards (1463 meters). In retail trade, a hank is often equal to 6 or 7 skeins of varying size.(http://www.unc.edu/~rowlett/units/dictH.html#hank)
Reba McEntire, Willie Nelson, Tom Petty and Merle Kilgore are on the song. Reverend Ike & Willie Nelson added verses also. This song was written and sang first by Hank Williams Sr.