Rolling over is a huge motor milestone for babies! The rolling phase helps lead to independent sitting, crawling, and walking. Babies must learn to roll in two directions; from back-to-tummy and tummy-to-back. When Will Your Baby Start Rolling Over? Most babies start rolling over during tummy time practice. By 5 months of age, your baby should be able to roll over from tummy-to-back and by 6 months, your baby should be able to roll from back-to-tummy. Rolling over from bac