Blanket Cast-On Calculator 🛏️
Calculate cast-on stitches (knitting) or starting chain (crochet) for a blanket at any target dimensions using your gauge.
How to Use the Blanket Cast-On Calculator
Enter your desired finished dimensions and your gauge — both stitch and row gauge from a blocked swatch. Row gauge is needed to calculate how many rows you will work.
For knitting, the result is a straight cast-on stitch count. For crochet, the chain count already includes the turning chain (1 for sc, 2 for hdc, 3 for dc).
If your blanket uses a stitch pattern with a multiple (e.g., every 6 stitches), round the cast-on count up to the nearest multiple before starting.
FAQ
How do I calculate cast-on stitches for a blanket?
Divide your target width by your gauge swatch width, then multiply by the number of stitches in your gauge swatch. This calculator does that math automatically.
How many chains do I start with for a crochet blanket?
For a single crochet blanket, add 1 turning chain to your stitch count. For double crochet, add 3. This calculator automatically includes the correct turning chain.
Does gauge matter for a blanket?
Yes — gauge determines the finished dimensions. A difference of even one stitch per 10 cm across a 120 cm blanket adds or removes about 12 stitches, affecting finished width by several centimetres.
Should I swatch for a blanket?
Swatching is recommended even for blankets, especially if you want a specific finished size. Wash and block your swatch before measuring for the most accurate gauge.