Tennis ball size
An official tennis ball is 2.57–2.7 in (6.5–6.9 cm) across and 8.09–8.48 in (20.5–21.6 cm) around, weighing 1.98–2.1 oz (56–59 g).
Measurements
| Size | Circumference | Diameter | Weight | Who uses it |
|---|---|---|---|---|
| Type 2 (standard) | 8.09–8.48 in (20.5–21.6 cm) | 2.57–2.7 in (6.5–6.9 cm) | 1.98–2.1 oz (56–59 g) | All levels |
What to know
The ITF defines tennis balls by diameter: 6.54–6.86 cm (2.57–2.70 in).
Diameter is calculated from the official circumference (diameter = circumference ÷ π).
Questions people ask
What is the diameter of a tennis ball?
2.57–2.7 in (6.5–6.9 cm).
How much does a tennis ball weigh?
1.98–2.1 oz (56–59 g).
Related sizes
Sources and method
- ITF Rules of Tennis, Appendix I (diameter 6.54–6.86 cm, mass 56.0–59.4 g)
Imperial and metric values are converted with 1 in = 25.4 mm exactly and rounded only for display. Found a mistake? Report it and we will correct the page.