SizerooGuessroo · All sizes

How long is a newborn baby?

50 cmAbout 1.64 ft · Handheld

About 50 cm on average.

That's about 1/3 of a red kangaroo (about 1.5 m tall).

50 cm
an AA battery

To scale: a newborn is about 9.9× bigger than an AA battery.

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Things about the same size

Many real things vary in size, so we use a typical or official figure. Spotted a mistake? Email hello@guessroo.com.