It's about 2,000 times as long as an Aspirin.
In other words, 100 feet is 2,200 times the length of an Aspirin, and the length of an Aspirin is 0.00045 times that amount.(for up & up aspirin, 325mg, regular strength tablets) (a.k.a. acetylsalicylic acid, a.k.a. ASA)
A single aspirin tablet measures 0.046 feet in diameter. One of the most common medicines in the world and a foundation of worldwide health systems, an estimated 40,000 metric tons of aspirin are consumed each year.
It's about one-three-thousandth as long as The Panama Canal.
In other words, 100 feet is 0.00035 times the length of The Panama Canal, and the length of The Panama Canal is 2,900 times that amount.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 290,000 feet in length. Ships passing through the Canal are raised (and then lowered) 85 feet above sea level through the lock-and-dam system.
It's about one-three-thousand-five-hundredth as long as The English Channel.
In other words, 100 feet is 0.000285 times the length of The English Channel, and the length of The English Channel is 3,510 times that amount.(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 351,000 feet, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.
It's about one-four-thousandth as long as The 405.
In other words, 100 feet is 0.00026154 times the length of The 405, and the length of The 405 is 3,823.50 times that amount.(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
Running from Irvine to San Fernando, The 405 runs a total of 382,350 feet. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.
It's about one-four-thousandth as long as Hadrian's Wall.
In other words, 100 feet is 0.00025 times the length of Hadrian's Wall, and the length of Hadrian's Wall is 4,000 times that amount.(a.k.a. Roman Wall, a.k.a. The Wall, a.k.a. Vallo di Adriano, a.k.a. Vallum Aelium, a.k.a. Severus' Wall) (from North Tyneside, Tyne and Wear, England, United Kingdom to Cumbria, North West England, United Kingdom)
Hadrian's Wall, which crossed England form the North Sea to the Irish Sea during the time of Roman rule, measures 390,000 feet (about 79 Roman miles). Roman soldiers — at one time up to 10,000 of them — only occupied Great Britain for about 246 years after the wall was built, after which time the local Brits began to take residence the wall's garrisons.
It's about one-fifteen-thousandth as long as The Grand Canyon.
In other words, the length of The Grand Canyon is 14,600 times 100 feet.(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 1,460,000 feet along the course of the Colorado River at its bottom. Having opened in early 2007, the Grand Canyon Skywalk allows tourists to stand on a horseshoe-shaped glass walkway 3,610 feet above the floor of Granite Gorge.
It's about 20,000 times as long as a Strand of Spaghetti (thickness).
In other words, 100 feet is 18,000 times the length of a Strand of Spaghetti (thickness), and the length of a Strand of Spaghetti (thickness) is 0.0000560 times that amount.(average; restaurant and supermarket applications) (based on FMA Omcan Italian Made TR50 Counter Top Pasta Machine Extruder 13317)
An average strand of restaurant-grade spaghetti measures 0.0056 feet in thickness. In 2010, a California Buca di Beppo set a world record by preparing a 13,780-lb bowl of spaghetti, served in a swimming pool.