Neckline Shaping Calculator
Centre bind-off and edge decreases to shape a crew or V-neck.
Result
Bind off the centre 16 sts.
Then each side: on successive RS rows, bind off 3 sts once, bind off 2 sts once, then decrease 1 st every RS row twice.
7 sts removed at each edge. Work the two sides separately.
The bind-off taper rounds the corner right after the centre; the single decreases finish the curve. Then work straight to the shoulder.
Calculated at fibercalc.site/neckline-shaping — free knitting & crochet calculators.
How to use
- Pick the neckline: crew/round binds off the centre and curves each side; V-neck splits at the centre and decreases up to the shoulder.
- Enter the neck opening width in stitches — how many stitches the finished neck removes across the front.
- Enter the neck depth in rows, from where shaping starts to the shoulder.
- Read the centre bind-off and the shaping sequence to work at each neck edge, one side at a time.
Good to know
- A crew neck binds off about half the neck at the centre, then shapes each side with a front-loaded taper — a few bind-offs to round the corner, then single decreases. A V-neck has little or no centre bind-off; it decreases steadily from the split up to the shoulder.
- Once the two sides are worked separately, the neck edge of each side is only in reach every other row — so every shaping row is a right-side row, and that is the fastest spacing that can actually be worked.
- A V-neck edge is a straight diagonal by design — evenly spaced decreases from the split to the shoulder. A crew neck curves: the bind-off taper (for example bind off 3, then 2, then 2) rounds the corner right after the centre bind-off, then single decreases every right-side row finish the curve. The calculator gives whichever shape matches the neckline you picked.
- Work the two sides separately — shape one shoulder’s worth of neck, then rejoin yarn for the other side and mirror it.
- Worked example: a 48-stitch, 24-row-deep crew neck binds off 24 stitches at the centre, leaving 12 stitches each side — bind off 3, then 2 twice, then decrease 1 stitch every RS row 5 times to finish the curve.
FAQ
- How wide should the neck opening be?
- A crew neck is usually about a third of the total front width; a boat or wide neck is more. Use your finished front stitch count and the neck width your pattern or size chart suggests.
- Why does a crew neck bind off the centre all at once?
- Binding off the centre creates the flat base of the round neck; the decreases each side then curve up to the shoulders. A V-neck skips the centre bind-off and decreases the whole way for the point.
- Does this work for crochet?
- Yes — read "rows" as your crochet rows and "bind off" as fastening off or skipping stitches, and decrease at the neck edge with your usual decrease. The spacing is the same.