All the Math by Helena Bristow
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All the Math

February 2010
Fingering / 4 ply (14 wpi) ?
US 0 - 2.0 mm
US 1½ - 2.5 mm
US 2½ - 3.0 mm
300 - 450 yards (274 - 411 m)
Women's XS, S, M, L, XL (Men's M, L)
This pattern is available as a free Ravelry download

PDF updated 02.19.2010

This generic pattern for slip-stitch heel, toe-up socks includes instructions for 5 different sock sizes on 3 different needle sizes. Pictured sock is Trekking XXL, color 135 in size Women’s M on 2.5mm needles (Addi turbo US size 1).

Note that millimeter measurements can correspond to different US sizes, so it is important to make sure your needles match the millimeter measurement.


  • 100g sock-weight yarn
  • 1 circular needle, 32” or longer (40” is best), size 2mm, 2.5mm, or 3mm


  • 2mm needles: Sizes XS (S, M); Circumference 6.25 (7.25, 8.25); 8 sts per inch
  • 2.5mm needles: Sizes S (M, L); Circumference 7.25 (8.25, 9.25); 7.25 sts per inch
  • 3mm needles: Sizes M (L, XL); Circumference 8.25 (9.25, 10.25); 6.5 sts per inch

Note: for men’s socks, I recommend working size L (men’s M) or XL (men’s L).