SizerooGuessroo · All sizes

How wide is a tennis ball?

6.7 cmAbout 2.64 in · Handheld

Between 6.54 and 6.86 cm by the official rules.

That's about 1/22 of a red kangaroo (about 1.5 m tall).

6.7 cm
a house fly

To scale: a tennis ball is about 10× bigger than a house fly.

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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 [email protected].