How much yarn for sleeves?

I made a circular shrug for my SIL, but she has now asked for sleeves to be added to it.

Does anyone know how many yards of worsted weight yarn it takes to make full length sleeves? guesstimations are welcome to [size=2](so long as you let me know you’re guessing)… [/size]

About 200 yds? Depends what size needles you’re using.


Oh yeah. sorry. I’m using size… :?? 10 I think. maybe 9. and it was a mock rib pattern.