Pregora
Baby development

24 weeks pregnant baby size

By Pregora Editorial Team · Updated 2026-05-07 · 3 min read

Pregnant woman in soft maternity portrait

At 24 weeks pregnant, your baby is about 30 cm / 11.8 in long and weighs around 600 g / 21 oz — comparable in size to a corn cob. About the length of a corn cob — and reaching the 'viability' milestone.

Length

30 cm / 11.8 in

Weight

600 g / 21 oz

Size of

Corn cob

Week 24 milestones

  • Lungs are developing surfactant (critical for breathing after birth)
  • Baby is now considered 'viable' — could survive with intensive NICU care
  • Taste buds are forming — baby tastes amniotic fluid flavours
  • Sleep cycles are establishing (baby has wake/sleep patterns)

Tip for week 24

Glucose tolerance test (gestational diabetes screening) typically happens between weeks 24-28.

Disclaimer: Baby measurements are population averages — individual babies vary. Always consult your healthcare provider for personalised growth assessments based on your ultrasound scans.

Related tools