A convertible baby carrier backpack system enables using a backpack portion as a backpack alone, a baby carrier portion as a baby carrier alone, or coupling the two portions together to form an integrated baby carrier backpack. A baby carrier has a carrier opening between a back panel and a carrier panel. A back panel is opposite the shoulder straps and configured away from a carrier when used as a baby carrier, while the carrier panel is configured proximal to the carrier when used as a baby carrier. An exemplary baby carrier portion has a carrier attachment feature configured on the back panel that enables detachable attachment of a backpack. An exemplary backpack portion has a backpack attachment feature that is configured to couple with the carrier attachment feature to enable detachable attachment of the backpack portion to the baby carrier portion.