How Long is 400 Feet? (Comparison Guide)

How long is 400 feet

400 feet is the same as 133.333 yards or 121.92 meters. While that might seem like a far distance, you could travel that distance in just 0.002 seconds if you were in a vacuum and traveling at the speed of light.

If you’d like to know what 400 feet looks like, just take a look at the things around you. In this guide, I’ll show you 9 objects that measure 400 feet or close to it.

1-1/3 Football Fields

1 1-3 Football Fields

Football is a popular sport in the United States and nowhere else. By football, I mean American football, which involves running an egg-shaped ball across a wide field and spiking it in the endzone, only to be called for unsportsmanlike conduct.

Speaking of running the ball to the endzone, the distance from one end to the other is exactly 100 yards or 300 feet. Including the endzones, you would get a total of 120 yards or 360 feet, which is about the height of a field goal post short of 400 feet.

Half the Titanic

Half the Titanic

The disaster of the RMS Titanic was one that will forever be in the history books, partially due to the fact that James Cameron’s film, Titanic, was such a blockbuster hit. The Titanic sank on April 14, 1912, during its maiden voyage to New York City, claiming roughly 1,500 poor souls.

The 882.5-foot-long cruise liner was a marvel of human engineering back in its day, but it pales in comparison to the 1,000-plus-foot-long cruise ships we have today. In fact, the longest cruise ship in existence is Wonder of the Seas, which measures 1,187 feet long! You would have to divide the Wonder of the Seas into thirds to get to 400 feet, give or take a few feet.

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2 Boeing 747 Wingspans

2 Boeing 747 Wingspans

Boeing is the premier manufacturer of commercial aircraft. It’s been that way for several decades now, which, believe it or not, is the result of listening to customers and making improvements to fit the passengers’ needs. I wish they’d do something about the seats not being big enough for the average human!

A Boeing 747 airline has a wingspan of roughly 224 feet, so if you placed 2 747s side by side by the wingtips, you would get just slightly over 400 feet. The 747 can seat over 366 passengers and weighs a massive 485,000 pounds (roughly 220,000 kilograms).



Submarines might seem like a fairly recent invention, but they actually go back to the American Civil War. The South created steam-powered submarines, which were called Davids at the time, to sink North ships while remaining somewhat concealed. Today, submarines on patrol can carry dozens of nuclear warheads.

A nuclear submarine can measure 491 feet, though most submarines fall somewhere in the 425 to 450-foot range. Don’t step foot inside a submarine unless you’re prepared to dive thousands of feet under the surface of the ocean!

16 Gingko Tree Spreads

16 Gingko Tree Spreads

Gingko trees have been on this planet for roughly 200 million years, despite being a fairly common tree in the northern United States. In fact, it’s known as a “living fossil” and predates dinosaurs! Throughout its history, the gingko tree has almost gone extinct multiple times, but thanks to human intervention, they’ve become so widespread that nobody bats an eye at them any longer.

This tree has an average spread—the total area that the leaves cover—of between 25 and 35 feet. 16 gingko trees standing next to each other would give you a collective length of 400 feet.

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5 School Buses

5 School Buses

School buses are the vehicles that young school children ride in, despite the lack of seat belts. However, they are considered to be a lot safer than most other types of vehicles, possibly due to the fact that every state has laws concerning the safety of driving around school buses.

These yellow vehicles range in size from 20.9 to 38.9 feet and can seat between 54 and 78 students. If you placed 5 large school buses end to end, you would have a total measurement of pretty close to 400 feet in length.

8 Step-Deck Trailers

8 Step Deck Trailers

If you’ve ever driven down a highway before, you’ve probably seen countless semi-trucks dragging around all sorts of trailers. One of the more widely used trailer types is known as the step-deck trailer. The reason some freight companies opt for step-deck trailers instead of flatbeds is that their cargo must meet a maximum height limit, and the lower deck of the step-deck trailer allows trucks to carry taller cargo.

Like most trailer types, step-deck trailers range from 48 to 53 feet in length, so 8 step-deck trailers would get you to about 400 feet.

16 Garden Hoses

16 Garden Hoses

Garden hoses are good for one-million-and-one different things, such as refilling the tanks of Super Soakers, filling up inflatable tubs, and watering gardens. If you visit a hardware store, odds are you’ll come across garden hoses ranging from 25 to 100 feet.

So, depending on what garden hose size you get, you’ll need between 4 and 16 of them to get to 400 feet. Alternatively, you can use the garden hose’s spray as a reference. With a jet nozzle, garden hoses can shoot water up to 50 feet. 8 sprays are all it takes to get to 400 feet, give or few a couple of feet.

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2 Hockey Rinks

2 Hockey Rinks

Hockey is a fairly popular sport in the northern parts of the United States. However, it’s a much more popular pastime in places like Canada and Sweden. Today, there are over 900 NHL players playing for 32 different teams. The Chicago Blackhawks, which holds 6 Stanley Cup titles over its 96-year history, has the most fans.

Anyway, the next time you visit an NHL stadium, take a close look at the hockey rink. A regulation rink should measure exactly 200 feet from end to end, meaning that you’d only need 2 of them to get to 400 feet. Did you know that the typical NHL player will skate up to 5 miles per game or 410 miles in an entire season?


Baron Cooke has been writing and editing for 7 years. He grew up with an aptitude for geometry, statistics, and dimensions. He has a BA in construction management and also has studied civil infrastructure, engineering, and measurements. He is the head writer of

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