Size It Up · Everyday
How big is Tennis ball?
6.7 cmdiameter
A tennis ball is 6.7 cm in diameter.
Enter your height to compare yourself with Tennis ball.
- 0.46× a smartphone (14.7 cm)
- 0.37× a banana (18 cm)
- 2.91× the euro coin (2.3 cm)
- 0.039× a adult human (1.7 m)
How to picture 6.7 cm
Start from something you can see right now. Tennis ball is about 0.46× smartphone. That is exactly the estimate the board asks you to draw: pick a reference, decide the ratio, resize the silhouette.
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