16 weeks pregnant baby size
By Pregora Editorial Team · Updated 2026-05-07 · 3 min read
At 16 weeks pregnant, your baby is about 11.6 cm / 4.6 in long and weighs around 100 g / 3.5 oz — comparable in size to a avocado. Roughly the size of an avocado — and starting to look much more baby-like.
Length
11.6 cm / 4.6 in
Weight
100 g / 3.5 oz
Size of
Avocado
Week 16 milestones
- Baby can hear sounds from outside the womb (your voice, music)
- Eye and ear positions are now in their final places
- Tiny muscles are getting stronger — kicks and stretches happen
- Some women feel first 'flutters' (quickening) around weeks 16-22
Tip for week 16
If you haven't already, this is a great time to start talking or playing music to baby — auditory development is in full swing.
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Disclaimer: Baby measurements are population averages — individual babies vary. Always consult your healthcare provider for personalised growth assessments based on your ultrasound scans.
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