How much will your knitting shrink?

Pieces knitted in stockinette stitch will shrink more in length than in width during felting. To calculate how much your piece will shrink, knit a good-sized swatch and use this table to “do the math.”

1. Measure the stitch gauge, length and width of the swatch, then felt it.Width (example)

8 in. (20 cm)

2.5 st = 1 in. (2.5 cm)

 

Length (example)

8 in. (20 cm)

2. Measure the swatch after felting.Divide the measurement after felting by the measurement before felting.7 in. (17.5 cm)7 / 8 = .875
(17.5/20 = .875)
6 in. (15 cm)6 / 8 = .75
(15/20 = .75)
3. Divide the finished size by the result. This is the length and width your piece should bebefore felting.24 / .875 = 27.5 in.
(61 / .875 = 70 cm)
36 / .75 = 48 in.
(92 / .75 = 123 cm)
4. Multiply the width result by the gauge from your swatch. (For metric, divide by 2.54.) This is the number of stitches to cast on.27.5 x 2.5 = 68 st
(70 x 2.5 / 2.54 = 68 st)

 

  1. very nice

  2. Great comment. If anyone else has some tips we will add them above.

  3. One possible modification, because felted fabric gets funky on the edges:

    knit a swatch larger than your desired measurement swatch, say perhaps an inch bigger on each side. (for example 10″ x 10″)

    Loosely run sewing thread through a box of a given size. (For example 8×8)

    Then felt and measure as you discussed. This allows for a more accurate measurement, without the distortion the edges will cause.

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