What are the different thicknesses of yarn?

What is sport weight yarn equivalent to?

A sport weight yarn is equivalent to a 5-ply.

What weight is worsted held double?

Fingering held doubled is therefore the equivalent of 200 m/100 g or worsted-weight yarn.

How many ply is medium weight yarn?

The number of wraps will act as a gauge to assess the thickness of unmarked yarn; for example 12 wraps per inch is 12 WPI, and is used to calculate how much yarn is required for various articles, so that 12 is equivalent to 8 ply (worsted weight, medium weight) yarn.

How long is 100g yarn?

375-550m per 100g = Fingering (550 being ‘light’ fingering) 300-400m per 100g = Sport (yes, I’m aware this overlaps with fingering!) 200-300m per 100g = DK. 100-200m per 100g = Aran.