Use .5oz/14.2g fingering weight (sock weight) and 1 US and 2 US needles for newborn to 6 months. Gauge 8 sts = 1”/2.5 cm with 2 US.
Use .5oz/14.2g sport weight and 2 US and 3 US needles for 6 months to 1 year. Gauge 6 sts = 1”/2.5 cm with 3 US.