Ball pythons typically grow to an adult length of about 3 to 5 feet (90 to 152 cm), with females generally being larger than males. Females often reach lengths of around 4 to 5.5 feet (122 to 167 cm), while males usually grow to about 3 to 3.5 feet (90 to 107 cm)

. In rare cases, some ball pythons can reach up to 6 feet (182 cm), but this is uncommon

. Adult ball pythons usually weigh between 2.5 to 6 pounds (1.2 to 2.7 kg), with females tending to be heavier than males

. Growth rate slows significantly after about 3 to 4 years, with most ball pythons reaching their full size by then

. Factors influencing their size include genetics, diet, environment, and husbandry

. In summary:

• Average adult length: 3 to 5 feet (90–152 cm)
• Females: typically 4 to 5.5 feet (122–167 cm)
• Males: typically 3 to 3.5 feet (90–107 cm)
• Maximum rare length: up to 6 feet (182 cm)
• Weight range: 2.5 to 6 pounds (1.2 to 2.7 kg)
• Full growth by 3–4 years of age

This size makes ball pythons manageable pets suitable for many reptile enthusiasts