Pick a standard size or go custom, plug in your gauge, and get the exact chain and row count.
Blanket sizing comes down to two things: what the blanket is for, and your personal gauge. Use the presets above as a starting point — lovey and stroller sizes for babies, throw and lap sizes for the sofa, bed sizes for coverage — then adjust the width and height to taste. Once you've got dimensions you like, enter your gauge to get the exact chain and row counts for your hook and yarn.
What size should a throw blanket be?
A standard lap or throw blanket is typically around 115 x 145cm (45 x 57in) — big enough to cover an adult curled up on a sofa without dragging on the floor.
How do I know how many stitches to chain for a blanket?
Multiply your gauge (stitches per 10cm) by the desired width in cm, then divide by 10. This calculator does that automatically, and also gives you the total row count for the height. For baby-specific sizing, see the Baby Blanket Size Guide.
Should I chain an exact multiple for a stitch pattern?
Yes — many stitch patterns (like shells or granny stripes) repeat over a multiple of stitches plus a few edge stitches. Round the calculated chain count up or down to the nearest multiple stated in your pattern before starting.