Knitting and Crochet Calculators
Finding the right formulas for your knitting and crochet projects can be frustrating. Trying to figure out how many balls of wool you need for that cool new pattern while you’re in the yarn store can be stressful.
When designing your own pieces, there’s often a lot of math involved to get the sizing just right. Plus, you need to figure out how much yarn you already have and what you still need to buy. It can feel pretty overwhelming.
I’ve set up calculators for key knitting calculations like wool yardage, even increases, and gauge. On your computer, you can use the left and right arrow keys to adjust the sliders after clicking on them. To make it easy to use, especially on your phone, I’ve created a simple text menu with clickable links.
Calculate Your Gauge
Number of Skeins Needed for a Pattern
Number of Yards Needed For A Design
Number of Yards Needed for A Scarf
Number of Yards Needed for A Hat
Number of Stitches to Cast On
If your project involves ribbing, cables, or other patterns, you may need to adjust the number of stitches to match the pattern repeat. For example, if your pattern repeat is 4 stitches (e.g., k2, p2 ribbing), ensure the total number of stitches is a multiple of 4.
Even Number of Increases Across a Row
Even Number of Decreases Across a Row
Determine How Many Rows You Need
Yardage Needed for a Sweater
Notes on Constructing Sweaters:
- Ease can be positive (for a looser fit), negative (for a tighter fit), or zero (for a very close fit).
- Use your finished measurements (body measurement + ease) to select the size in a pattern.
- If designing your own pattern, ensure that all measurements (length, armhole depth, sleeve circumference) include the desired ease.
- Ensure your gauge matches the pattern gauge, as differences can affect the finished measurements.
Tapered Sleeve Increases & Decreases
For a tapered sleeve, you should increase 1 stitch at each end of the row (a total of 2 stitches per row) at the specified row intervals.
The formula for tapered sleeve increases it the same for decreases.
Socks - Circumference & Fit
Socks - Number of Stitches to Caston
Socks - Number of Rows for Leg
Socks - Number of Rows for Foot
Socks - Heel Flap and Gusset
The heel turn is typically done over half the total number of stitches. The short-row method or the flap and gusset method are common for shaping the heel.
Socks - Toe Decreases
The heel turn is typically done over half the total number of stitches. The short-row method or the flap and gusset method are common for shaping the heel.
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