How big is 177,600 circular inches?

Per International Tennis Federation Rules of Tennis 2009, a doubles tennis court should measure 23.7744 m long by 10.9728 m, for a total area of about 514,616.440 circular inches. Courts may be surfaced with crushed red stone, shale, brick, hard-soil grass, or asphalt.

An IMAX movie theater screen measures 22 m (72 ft) by 16 m (52 ft) for a total area of 699,000 circular inches. Because the film used in an IMAX movie is more than eight times larger than regular film, the platters of a two-and-a-half hour feature film can weigh up to 250 kg (550 lbs).

Per NBA rules , a basketball court should measure 29.5656 m long by 16.764 m wide, for a total area of 978,153.54780 circular inches. The first basketball game, held in a Springfield Massachusetts YMCA, was played on a court half the size of today's NBA standard and ended with a score of 1-0.

An average-size parking space in a North American surface lot measures 29,600 circular inches. Due to the high real estate prices at the time, parking spaces in a densely-populated part of Manhattan would sell for an average of $165,000 in 2007, with some spaces fetching up to $225,000.

The United States Bullion Depository, commonly referred to by the metonym "Fort Knox" (in spite of the fact that the Depository is not located on the Fort proper), measures 32.0 m (105 ft) by 36.9 m (121 ft), for a total area of about 2,330,000 circular inches. The Depository is most famous for housing the largest portion of the national gold reserve, but has also temporarily housed the original US Declaration of Independence, an original copy of the US Constitution, and other important documents, kept there for safe keeping during World War II.

Manchester Cathedral includes a total interior area of 2,443,000 circular inches between the Nave, Chapel, Library, Chapter House, and Rectory. The height of the Cathedral's bell tower is 41.1 m.

Per National Hockey League Official Rules, a hockey rink should measure 60.96 m long by 25.908 m wide with a corner arc radius of 8.5344 m, for a total area of about 2,993,499.810 circular inches. Ice hockey is believed to have developed from field hockey after players began holding games on ice rinks, which had been traditionally used for the sport of curling.

A King-Size mattress measures 7,950 circular inches in total area. Although most antique beds were smaller than modern beds, it was not uncommon for beds in the medieval Europe to reach 9,870 circular inches for those in positions of wealth or power.

One of the largest homes in the world, Bill and Melinda Gates' home has a total area of 8,830,000 circular inches, including 7 bedrooms, 24 bathrooms, 6 kitchens, 6 fireplaces, a 453,900 circular inches gym, a 177,600 circular inches dining room, and a 375,000 circular inches library. It was designed by Bohlin Cywinski Jackson, the same architectural firm responsible for the design of one of Apple Inc's flagship stores on Fifth Avenue in New York City.

Per NFL rules, a football field should measure 109.728 m (120 yards) long by 48.768 m wide, for a total area of 10,560,758.08 circular inches. Due to a blizzard, the first NFL playoff game in 1932 was held indoors in Chicago Stadium (it was also the first indoor game) on a field measuring just 55 m by 40.0 m, for a total area of 4,341,755.5310 circular inches.

Housing the presidency, the White House occupies six stories and a total of 12,000,000 circular inches of floor space. This space includes 132 rooms, 35 bathrooms, 28 fireplaces, and 3 elevators, as well as a tennis court, bowling alley, movie theater, jogging track, swimming pool, and putting green.

Bath towels typically measure 142.24 cm (56 in) by 76.2 cm (30 in), for a total area of about 2,138.90 circular inches. The city of Bursa, Turkey is known as the birthplace of the modern towel.

The Palace of Holyroodhouse, the residence of the British Monarch in Scotland, measures about 16,000,000 circular inches, on a total grounds area of about 79,000,000 circular inches. Each year, the Palace hosts a Garden Party, serving 8,000 guests from a 150-meter-long buffet table.

Seal Island, named for the tens of thousands of Cape Fur Seals that live there, measures about 16,000,000 circular inches. The large number seals attract great white sharks, who circle the island in a so-called "Ring of Death."

A Manhattan city block measures about 200 m between the Northeast-Southwest streets by about 60 m between the Northwest-Southeast streets for a total area of about 20,000,000 circular inches. There are roughly 2,000 blocks within the city, representing one of the most prolific applications of the city planning grid plan in history.