If Number of skyscrapers in Chicago (>150m tall) (137 ) was a standard unit ...

Number of helicopters in the world (69,700 )...more would be 500 x Number of skyscrapers in Chicago (>150m tall)

High estimate of number of Bornean Orangutans (69,000 individuals)...more would be 500 x Number of skyscrapers in Chicago (>150m tall)

Pop. of Saint Kitts and Nevis (2023) (54,800)...more would be 400 x Number of skyscrapers in Chicago (>150m tall)

Pop. of San Marino (2023) (34,900)...more would be 250 x Number of skyscrapers in Chicago (>150m tall)

Number of seats in Wanderers Cricket Ground (SA) (34,000 )...more would be 250 x Number of skyscrapers in Chicago (>150m tall)

Estimate of population of Indian Elephant (27,000 individuals)...more would be 200 x Number of skyscrapers in Chicago (>150m tall)

Number of airports in the United States (13,510 )...more would be 100 x Number of skyscrapers in Chicago (>150m tall)

Number of rooms in the MGM Grand Hotel (Las Vegas) (6,850 )...more would be 50 x Number of skyscrapers in Chicago (>150m tall)

Number of passengers on the Allure of the Seas (and Oasis of the Seas) cruise liners (6,780 )...more would be 50 x Number of skyscrapers in Chicago (>150m tall)

Estimated world population of Baird's Tapir (5,500 individuals)...more would be 40 x Number of skyscrapers in Chicago (>150m tall)

Estimated world population of Wild Water Buffalo (3,400 individuals)...more would be 25 x Number of skyscrapers in Chicago (>150m tall)

Number of seats in Royal Festival Hall (2,700 )...more would be 20 x Number of skyscrapers in Chicago (>150m tall)

Estimated population of Asiatic Lion (674 individuals)...more would be 5 x Number of skyscrapers in Chicago (>150m tall)

Number of skyscrapers in Hong Kong (>150m tall) (554 )...more would be 4 x Number of skyscrapers in Chicago (>150m tall)

Number of passengers on a Boeing 777-300 airliner (certified capacity) (550 )...more would be 4 x Number of skyscrapers in Chicago (>150m tall)

Number of submarines in the US Navy (2023) (68 )...more would be 1/2 of Number of skyscrapers in Chicago (>150m tall)

Is That A Big Number? - The Book

Yes, there's now a book based on these numbers. Oxford University Press: July 2018.