It's about thirty times as long as a Football field
In other words, 3,000 meters is 27.34030 times the length of a Football field, and the length of a Football field is 0.036576 times that amount.(American) (total distance; per NFL regulation)
According to NFL specifications, an American football field should measure 109.7280 meters from end to end. Because each team's goalpost is located at the far end of the scoring area (end zone), a ball on a scoring play may need to travel as many as 9.1440 meters farther when kicked into the scoring area than when run (rushed) or passed into it.
It's about thirty times as long as a Football (Soccer) Pitch
In other words, 3,000 meters is 28.60 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 0.035 times that amount.(a.k.a. Football Field, a.k.a. Soccer Field) (field length, a.k.a. touchline distance)
According to the Laws of the Game, a football pitch should measure between 90m and 120m (when the Laws were originally, they used imperial measurements of 105 meters, and later converted to the metric units used today). The goal markess were defined as part of the pitch by the original rules of the game in the late 16th century, but it was not until the mid 19th century that the crossbar and the net were added
It's about one-thirtieth as long as The Panama Canal
In other words, the length of The Panama Canal is 29 times 3,000 meters.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 88,000 meters in length. Ships passing through the Canal are raised (and then lowered) 26 meters above sea level through the lock-and-dam system.
It's about thirty times as tall as Big Ben
In other words, the height of Big Ben is 0.032 times 3,000 meters.(officially the clock tower of Palace of Westminster, a.k.a. Houses of Parliament) (London, England)
The clock tower of the Palace of Westminster, which houses the bell known as "Big Ben," rises 96.0 m. The tower has no elevator, and is therefore only accessible by climbing 334 steps to the top.
It's about thirty times as tall as The Statue of Liberty
In other words, 3,000 meters is 32.260 times the height of The Statue of Liberty, and the height of The Statue of Liberty is 0.031 times that amount.(a.k.a. "Liberty Enlightening the World," a.k.a. La Liberté Éclairant le Monde) (Liberty Island, New York City, New York) (pedestal base to torch peak)
The Statue of Liberty reaches 92.99 m including the pedestal. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about one-thirty-fifth as wide as The English Channel
In other words, the width of The English Channel is 35.70 times 3,000 meters.(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 107,000 meters, 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-fortieth as long as The 405
In other words, 3,000 meters is 0.025742 times the length of The 405, and the length of The 405 is 38.8470 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 116,540 meters. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.