Neck Bands
Basic Techniques
V-Necks
Calculating Bands
Collars for Machine Knitters
DesignaKnit
Practice Makes Progress
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Knit it Now Tool
Neck Bands 
Estimate the number of stitches for your neck bands based on your gauge and dimensions. The tool will give you the band cast on (pickup) for both front and back neck opening.
Let Knit it Now do the math for you