Here’s a little way to calculate the maximum number of rows you can work on a shawl (top down shawls only). You need to have knitted at least 20% of your yarn to do get an accurate answer, though it will return a result with more than 10% yarn used.
This calculation will work for any shawl pattern that starts at the top and has a consistent number of increases in each row. (ie. 4 increases on every right side row and 2 sts on every wrong side row, or 4increases every other row.)
(Examples of this type of shawl are: ‘Swallowtail’, ‘Ishbel’, ‘Aeolian’, ‘Kiri’, ‘Traveling Woman’, My ‘Dew Drops’ & ‘Danish Ripple’ Shawls)
(I know these shawls have slightly different shapes, but trust me the maths works for all of them.)
You need to know:
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P.s. Please don’t blame me if the answer doesn’t work out for you, I provide this script working to the best of my knowledge, free to everyone.
(c) Bex Hopkins 2010, please do not attempt to steal this script.
If you would like to know how this is calculated please contact me.