Tennis umpire chair
A tennis umpire chair is a tall, freestanding seat that allows the umpire to oversee and officiate tennis matches from an elevated position.
Also known as: tennis referee chair, umpire chair
How big is it?
2.2 m tall
Also 7.218 ft
Defined overall height · defined specimen
Typical recorded range: 1.9 m to 2.5 m.
A little perspective
About the same scale as New Horizons spacecraft.
New Horizons spacecraft: New Horizons is a NASA spacecraft launched to study Pluto and the Kuiper Belt, carrying scientific instruments and powered by a radioisotope generator.
Measurements, assumptions & sources +
Tennis umpire chair
A defined freestanding tennis umpire chair 2.2 m high and 0.7 m wide. Tournament chairs differ in platform height, steps, canopy and ballast; the player-facing frame is the measured object.
Defined examples — our methodology
The marked defined overall height is calibrated. Unmeasured illustration details are representative.
New Horizons spacecraft
NASA’s New Horizons spacecraft body is approximately 2.2 m high and had a launch mass of 478 kg. The radioisotope-generator and antenna projections extend beyond the calibrated body-height span.
Johns Hopkins APL — New Horizons spacecraft
The marked spacecraft body height is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 2.2 m
For comparison, this page uses defined overall height. This is labelled defined specimen: an explicit comparison model rather than a claim that every example has the same value. The recorded range is 1.9 m to 2.5 m.
A defined freestanding tennis umpire chair 2.2 m high and 0.7 m wide. Tournament chairs differ in platform height, steps, canopy and ballast; the player-facing frame is the measured object.
The marked vertical span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Tennis umpire chair dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2.2 m | 1.9 m to 2.5 m | defined specimen | |
| 70 cm | 55 cm to 90 cm | defined specimen |
Around this scale
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These links use compatible length records, ordered around the selected value.
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The source records and measurement method remain available for inspection.
There’s always another scale
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