We have many different manufacturers here at Rylee Faith Designs Boutique which is why we do not have a standard size chart. Each outfit has a product description on the website & that is where we note how that particular outfit is running & if we recommend sizing up or not. If you ever need measurements on a specific outfit & size, please don't hesitate to email us at support@ryleefaithdesigns.com. We are happy to help you find the right size for your little lady!