Craft & Design
Knit Gauge → Cast-On
Turn a swatch gauge into the exact cast-on and total row count for any size garment.
Knit Gauge → Cast-On
Inputs
Results
Stitches per inch
5.00
Rows per inch
7.00
Cast on
100 sts
Total rows
168
Metric gauge
19.7 sts × 27.6 rows / 10 cm
How to use this
Knit a swatch at least 6 in square in the stitch pattern you’ll use, block it, then measure stitches and rows in the middle 4 in window. That number drives every calculation — cast-on count, row count for length, sleeve decreases, everything.
If your swatch doesn’t match a pattern’s printed gauge, change needle size before changing the pattern. One size up loosens by roughly one stitch per 4 in.
Formula
stitches/in = swatch_sts ÷ 4
rows/in = swatch_rows ÷ 4
cast on = round(stitches/in × target_width_in)
total rows = round(rows/in × target_length_in)
Related calculators
Formula
cast_on = round(sts_per_in × target_width); total_rows = round(rows_per_in × target_length)