Football pitch vs Tennis court: size comparison
Football pitch: 105 m. Tennis court: 23.8 m. Both silhouettes are drawn at the same scale.
Size ratio: ×4.4
Football pitch
105 m
What is measured Length of a standard football pitch
FIFA allows 100 to 110 m for international matches.
Tennis court
23.8 m
What is measured Length of a regulation tennis court
23.77 m, exactly 78 feet.
Source : Wikipedia — Tennis court