# Table tennis ball size

> What is the diameter of a table tennis ball?

- Category: Everyday objects › Sports balls
- Kind: Modern device
- Basis: ITTF Laws 2.3.1–2.3.2
- Page: https://xemstudio.com/objects/table-tennis-ball/ · JSON: https://xemstudio.com/api/geometry?object=table-tennis-ball · Plain text: https://xemstudio.com/objects/table-tennis-ball/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 40.0 | 40.0 | 40.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Table tennis ball: Ø40 mm, 2.7 g (ITTF Laws 2.3.1–2.3.2).
- The file is a sphere at the maximum diameter (holders sized to it fit every legal ball).

## Sizes

| dimension | value |
|---|---|
| diameter | 40 mm |
| mass | 2.7 g |
| rule | ITTF Laws 2.3.1–2.3.2 |

## Where the files are

- ITTF: [ITTF Laws 2.3.1–2.3.2](https://cdn.megaspin.net/rules/pdf/2021/ittf-rules-2.pdf) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/table-tennis-ball/index.json

- table-tennis-ball-max: [STEP](https://xemstudio.com/files/hardware/table-tennis-ball/table-tennis-ball-max.step) · [STL](https://xemstudio.com/files/hardware/table-tennis-ball/table-tennis-ball-max.stl) — Sphere Ø40 mm (maximum)

## Questions

**How big is a table tennis ball?**

Ø40 mm.

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