Heel Turn Calculator
Enter your heel stitch count and get the full row-by-row short-row turn, generated for that exact number — instead of hunting for a pattern that happens to use the same heel width you do.
The mechanism behind every short-row heel turn
Regardless of exact named variant, a short-row heel turn always works the same way: knit or purl across to one stitch past wherever the previous row turned, work a decrease that consumes exactly one stitch from the side you haven't touched yet, then turn and repeat in the other direction — one stitch further each time. This calculator generates the classic version of that pattern (sometimes called the standard or German short-row heel), which starts with a setup row and then increases the plain-stitch count by one every row until every heel stitch has been consumed by either a plain stitch or a decrease.
Why the final stitch count is always about heel stitches ÷ 2, plus 2
Every stitch in the heel gets accounted for exactly once during the turn: either worked as a plain stitch, or paired into one of the decreases. Because the process always starts from the center and works outward symmetrically, it always finishes with half the original heel stitches (rounded up, if you started with an odd number) plus 2 remaining live on the needle — that's not a coincidence specific to any one heel size, it falls out of the mechanism itself, which is why this calculator can tell you that number before you've worked a single row.
What changes with an odd stitch count
With an odd number of heel stitches, the two sides of the turn can't split perfectly evenly around the center — one side ends up with exactly one more stitch than the other. This calculator handles that automatically by centering on the lower of the two nearest whole numbers, which produces a turn that's off-center by a single stitch rather than a full row. That one-stitch offset is normal, doesn't affect how the heel fits, and is exactly how many patterns already handle an odd-numbered heel flap (eye of partridge stitch, for instance, is worked over an odd stitch count specifically for its texture).
Other heel styles exist
This generates the classic short-row heel turn, which is the most commonly taught version and works well for a huge range of patterns, but it isn't the only heel style in use — a Fleegle heel, an afterthought heel, or a heel worked with wrap-and-turn short rows instead of slipped-stitch decreases will each have their own row-by-row instructions that differ from this one, even though the underlying goal (turning 90 degrees around the heel) is the same. If your pattern specifies a named heel style other than a classic/German short-row heel, follow its own instructions rather than substituting this one.