How to Use the Advanced Shaping Calculator
The Advanced Shaping calculator helps you plan increases or decreases evenly across a specified number of rows, transforming a starting stitch count into an ending stitch count. It removes the mental math from sleeve shaping, crown decreases, and waist shaping.
Step by Step
- 1
Enter the starting stitch count
Input the number of stitches you'll have at the beginning of the section where you need to work increases or decreases.
- 2
Enter the ending stitch count
Input the target number of stitches you need to have at the end of your increase or decrease section.
- 3
Input the total rows
Enter the total number of rows over which you need to distribute the increases or decreases.
- 4
View the calculation
The calculator determines how many increases or decreases you need per side, how often to work them, and whether any extra increases are needed. It provides a row-by-row breakdown of when to increase or decrease.
When to use it
For increases: calculate how to space increases evenly when working sleeves, yokes, or any section that gets wider.
For decreases: space decreases evenly for sleeve tapering, crown decreases, or any section that gets narrower.
Worked example: sleeve increases
Scenario: working sleeve increases from 40 stitches to 72 stitches over 60 rows.
- Input — starting stitches: 40; ending stitches: 72; total rows: 60
- Total increases needed: 32 stitches (16 per side)
- Increase every 3 rows, 16 times
- Work increases on rows: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48
Shaping at a different gauge
If you're reworking a pattern at your own gauge, convert the stitch and row counts first with the gauge calculator — then feed the converted numbers into Advanced Shaping. The article on adjusting a pattern for a different gauge covers the order of operations, and row gauge vs stitch gauge explains why the row count matters so much for shaping sections.