Knitting Gauge Calculator
Enter the stitches and rows from your swatch and the size you want. Or take a pattern written for one gauge and convert its stitch counts to yours.
Worked examples
Cast on for a width
22 stitches over 10 cm, width 50 cm
110 stitches
50 divided by 10, times 22.
Convert a pattern
100 stitches at 20 per 10 cm, your gauge 24
120 stitches
The finished width stays at 50 cm.
About Knitting Gauge Calculator
Gauge, also called tension, is the number of stitches and rows that fit into a measured square of your knitting, usually 10 centimetres or 4 inches. It is the key to a project coming out the right size. Knit a swatch, wash and dry it the way you will treat the finished piece, lay it flat and count. Enter those numbers here with the width you want and the calculator tells you how many stitches to cast on.
Many stitch patterns need a certain number of stitches, such as a multiple of 4 plus 2 for the edges. The calculator rounds to the nearest number that fits, and tells you how wide the piece will be. A second mode converts a pattern written for a different gauge: enter the pattern's stitch count and its gauge, then your own gauge, and it scales the count so the finished size is the same. Rows are covered too.
How to use Knitting Gauge Calculator
- Choose centimetres (gauge over 10 cm) or inches (gauge over 4 inches).
- Enter the stitches and rows you counted in your swatch.
- Enter the width and length you want, and the stitch pattern repeat if there is one.
- Read the number of stitches to cast on and the rows needed. Or choose the convert mode.
Common uses
- Casting on a hat, scarf or jumper to fit
- Changing yarn from the one a pattern asks for
- Resizing a pattern for a different gauge
- Planning the length of a piece in rows
Frequently asked questions
How do I work out how many stitches to cast on?
Divide your stitches by the width of the swatch to get stitches per centimetre or inch, then multiply by the width you want. With 22 stitches over 10 cm and a width of 50 cm you need 110.
What if the stitch pattern needs a multiple?
Enter the multiple and any extra edge stitches, such as 4 and 2. The calculator picks the closest number that fits, here 106 or 110 depending on the width.
Why should I wash the swatch?
Most yarns change size when washed and blocked. Measure the swatch after washing as you will treat the finished piece, or the garment may not fit.
How do I convert a pattern to my gauge?
Multiply the pattern's stitch count by your gauge over the pattern gauge. A 100 stitch pattern at 20 stitches per 10 cm becomes 120 stitches at your gauge of 24.
What if my gauge is very different?
A big difference changes how the fabric looks and drapes, as well as its size. It is usually better to change needle size or yarn than to rely on conversion.