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How far from the net is the service line on a tennis court?

21 feet from the net on each side.

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  1. 15 feet
  2. 21 feet ✔
  3. 39 feet

Why: The service lines are drawn 21 feet from each side of the net. The space between that line and the net is split in two by the center service line, making the two service boxes.

Huh, didn't know that: The whole court is 78 feet long, so the baseline is 39 feet from the net.

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Why did the tennis court hire a tape measure? To keep everyone in line.
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References

Answer: 21 feet. The service lines are drawn 21 feet from each side of the net. The space between that line and the net is split in two by the center service line, making the two service boxes.

  1. ITF 2026 Rules of Tennis, Rule 1 The Court www.itftennis.com/media/7221/2026-rules-of-tennis-english.pdf
    21 feet (6.40 m) from each side of the net, parallel with the net. These lines are called the servicelines.
    Checked 2026-10-12.

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