Overall length6.9 tenths m
4.9 billionthsJupiter diameters
451Stacked pennies
686 billionGamma ray wavelengths
Standard 27-inch racket
Photo from Wikimedia Commons
Tennis Racket
The strung frame used to wallop felt-covered rubber balls/Sports
A modern tennis racket is typically 68.5-73.7 cm (27-29 inches) long, with a head size of 580-710 square centimeters. The frame is usually made of graphite composite and weighs 255-340 grams unstrung. ITF rules limit the overall length to 73.7 cm and width to 31.7 cm. The string bed consists of 16-18 main strings and 18-20 cross strings, strung at 20-30 kg of tension. Early rackets were wooden with smaller heads; modern materials and larger head sizes have transformed the sport's power and spin.
Measurements
Head width2.7 tenths m
2.7 tenthsBelt lengths
76.3 millionthsMonaco lengths
Mid-plus head size
Head length3.3 tenths m
2.75Candy bar lengths
7.5Oreo diameters
2.2 tenthsDolly Partons
Oval string bed
Mass (strung)3.1 tenths kg
620 millionParamecia
4.4 tenthsHardcover books
295 millionthsSmall cars
Typical intermediate frame
String bed area6.5 hundredths m2
5.2 thousandthsParking spots
2.6 tenthsMonopoly boards
About 650 cm2
Grip circumference1.1 tenths m
1.9 trillionthsMercury orbit radii
16.2 billionthsNile Rivers
3.6 millionSmoke particles
Size 3 (4 3/8 inches)