Weighroo

How much does a newborn baby's brain weigh?

13.4 ozAbout 380 g · Pocket

About 12 oz (350 g) to 14 oz (400 g), roughly a quarter of an adult brain.

That's as heavy as about 15,000 grains of rice.

13.4 oz
a Twinkie

By weight: a newborn's brain is about 9.9× heavier than a Twinkie.

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Things about the same weight

Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].