Sleeve Taper Calculator 🧥
Calculate how to evenly taper a knitted sleeve from upper arm to wrist. Enter stitch counts and sleeve length to get a decrease interval pattern.
How to Use the Sleeve Taper Calculator
Enter the stitch count at the upper arm (cast-on or widest point) and the stitch count at the wrist. The difference must be even because decreases are worked in pairs — one stitch on each side.
Enter the sleeve length as a row count, or as a measurement in cm or inches with your row gauge. The calculator will determine how many rows are available for the taper.
The result shows how many decrease pairs are needed and the interval pattern. If the rows don't divide evenly, you'll get a mixed pattern — work the longer intervals first for a smooth taper.
FAQ
How do I calculate sleeve taper decreases?
Subtract wrist stitches from upper arm stitches and divide by 2 to get the number of decrease pairs. Divide the total sleeve rows by the number of decrease pairs to find the interval between decreases.
Why must the stitch difference be even?
Sleeve decreases are worked in pairs — one stitch decreased on each side of the sleeve per decrease row. This keeps the sleeve symmetrical, so the total stitch reduction must be divisible by 2.
What if my decreases don't divide evenly into the rows?
When the rows don't divide evenly, you'll get a mixed interval pattern — some decreases spaced one row further apart than others. Work the longer intervals first for a more gradual taper at the upper arm.
Can I use this calculator for crochet sleeves?
Yes. The math is identical for crochet. Each 'row' corresponds to one row of crochet. Use your row gauge to convert a length measurement to rows if needed.
How do I measure row gauge for the sleeve taper calculator?
Knit a gauge swatch in your stitch pattern, block it, and count the number of rows in 10 cm (4 inches). Enter this as your row gauge. Accurate row gauge ensures the sleeve length matches your pattern.