Headband Circumference:

0-3 months: ~11”-12”
3-6 months: ~13”-14”
6-12 months: ~15”-16”
12+ months: ~16”-17”

This cute headband can be knitted in any size!

Yarn used: DK or sport weight
Gauge: 6 sts per 1” in stockinette stitch

If you use a thicker yarn and a bigger needle size, you will get a wider headband.