Ribbing Stretch Calculator ↔️
Calculate the relaxed and maximum stretched width of ribbing from stitch count and gauge. Supports 1×1, 2×2, and 3×1 rib patterns.
FAQ
Why does ribbing appear narrower than stockinette?
Ribbing alternates knit and purl columns. Purl columns recede to the back, causing the fabric to pull in horizontally. A 1×1 rib is typically about 65% of its stockinette width when relaxed.
What is the difference between 1×1 and 2×2 ribbing stretch?
1×1 rib (k1, p1) shrinks to about 65% of its flat width; 2×2 rib (k2, p2) shrinks slightly more to about 60%. 3×1 rib is less elastic at about 70%. 2×2 rib has the most stretch recovery.
How do I know how many stitches to cast on for a ribbed cuff?
Measure the wrist circumference, find the relaxed-to-stretched range using this calculator, then choose a stitch count whose relaxed width is slightly smaller than the wrist for a snug fit.
Should I use the same gauge for ribbing as stockinette?
Enter your stockinette gauge (stitches per 4 inches), not a ribbing gauge. The calculator accounts for ribbing shrinkage automatically. Using a ribbing gauge would double-count the compression.