Abstract: The present invention relates to an automated system and method for determining the best brand and product-specific sizes of garments or footwear for a child based on the child's measurements and the measurement parameters associated with a specific brands' sizing structures. The present invention also allows for projecting changes in the child's garment or footwear size by brand and product type over time either by projecting the approximate date on which a child will outgrow their current size or by projecting a future size for some given date in time.