16 weeks pregnant: baby is the size of an avocado
At 16 weeks, baby is about the size of
an avocado
Some moms start to feel the first little flutters between now and week 20.
- Length11.6 cm (4.6 in)
- Weight100 g (4 oz)
- Trimester2 of 3
Baby is measured from head to bottom (crown to rump) at this stage. These are rounded averages. Your ultrasound is the only real measurement of your baby.
Questions moms ask
How big is a baby at 16 weeks?
At 16 weeks, baby is about the size of an avocado: around 11.6 cm (4.6 in) long from head to bottom (crown to rump), and weighs about 100 g (4 oz). Every baby grows at their own pace.
What trimester is 16 weeks?
16 weeks is in the second trimester.
How many months pregnant is 16 weeks?
Roughly month 4 of 9.
Related tools
This page gives estimates, not medical advice. If you're worried about your baby's growth, talk to your doctor or midwife.