Increase / Decrease Calculator ➕
Calculate how to evenly space increases or decreases across a knitting or crochet row. Get step-by-step instructions for shaping.
How to Use the Increase/Decrease Calculator
Enter your current stitch count and how many stitches you need to add or remove. The calculator spaces them as evenly as possible across the row.
The result shows a repeating interval pattern. For example, 'K4, kfb' repeated means knit 4 stitches, then knit into the front and back of the next stitch.
If the increases/decreases don't divide evenly, some intervals will be one stitch longer than others. Work the longer intervals at the beginning or end of the row for symmetry.
FAQ
What is the most common increase stitch in knitting?
KFB (knit front and back) and M1 (make one) are the most common increases. KFB creates a small bar on the right side; M1 is nearly invisible. For evenly spaced increases, M1 is often preferred for its clean appearance.
What is the most common decrease stitch in knitting?
K2tog (knit two together) and SSK (slip, slip, knit) are the most common decreases. K2tog leans right; SSK leans left. For symmetrical shaping (like a neckline), use K2tog on one side and SSK on the other.
How do I evenly space increases across a row?
Divide the total stitches by the number of increases to find the interval. For example, to add 6 increases across 60 stitches: 60 ÷ 6 = 10, so work an increase every 10 stitches. Our calculator handles uneven divisions automatically.
What if the increases don't divide evenly?
When increases don't divide evenly, some intervals will be one stitch longer than others. Place the longer intervals at the beginning and end of the row for visual symmetry. Our calculator shows you exactly where to place each increase.
Can I use this calculator for crochet increases and decreases?
Yes. The spacing logic is the same for crochet. Common crochet increases are working 2 stitches into one; common decreases are sc2tog (single crochet two together) or dc2tog (double crochet two together).