“How many wheels are in the world?”
The above question sounds pretty weird as it almost resembles finding the number of needles in all haystacks present on the earth. Besides, you also need to consider that wheels are not just present in vehicles.
You find wheels in furniture, toys, cranes, and many other elements. Therefore, it’s pretty much certain that finding the number of total wheels on the earth has been a hassle for the assessors.
What’s more interesting is the comparison between the number of wheels and the number of doors present. Now, the comparison is synonymous and relevant if we consider a car because you will have four doors and four wheels. But what about a motorbike? You got two wheels but no door.
This question has become hype on Twitter after someone posted it. At first, it sounds weird, but it has a base because wheels and doors are two entities people use or come across plenty of times in a day. So, now comes the question about which is more than which one and by how many?
There has to be a base or study to answer the questions asked above, like how many wheels are in the world. In this article, we have explained some of the most related aspects to doors, wheels, number of doors, and more to clarify the doubts. Furthermore, the discussion below will also help you reach a conclusion once you read it to the end.
Assumption: Can wheels be more in number than a door? Or is the door more in number than wheels?
Before diving deep into the reality of the number of wheels and doors, let’s draw an assumption to know how many wheels there are in the world and how many doors.
Wheels are present mainly at the base of any moving object. The best example of wheels will the car wheels. But you can find the structure in several other elements also, like:
- Trolley bags
- Furniture units like cupboards, dressers, chairs, tables
- Large machine base tray
- Toys, especially the small vehicles
- Freestanding electrical appliances like cooler, freezer, standing fan, and more
On the other hand, you can find doors in almost every place. Drawing the same parallelism, you can find doors in cars and other four-wheeler vehicles. However, the number of doors will differ. For instance, a car has four doors, while SUVs and MPVs have five doors.
Similarly, if you consider the trucks and vans, there are two and one doors respectively. Other than these items, doors can be found in:
- Houses or any other property with a gate
- Refrigerators and freezers
- Front load washing machine
- Public bathrooms and shower rooms
Considering the abundance of both doors and wheels, we can conclude that the wheels will be more than the doors. It is because a door is a single large entity. For instance, a freezer will have one door only, but its base will have four to eight wheels.
Similarly, if we draw the comparison of vehicles, two-wheelers like motorbikes, scooters, bikes, and others feature two wheels but no door. So, to answer how many wheels are there in the world, we can include a lot of assumptions.
What can be considered a wheel?
Now, coming to the next section of the article, i.e., understand what a wheel is. According to Physics 101, a wheel is a circular object that revolves and covers a distance equivalent to the product of the circumference of the wheel and the number of revolutions it makes per minute. In cars, there is a connection between the wheels and the axle, simply a long rod connecting two wheels on either side right at the center.
But no axle is there if we consider other objects like toys or furniture. Instead, the wheel installation depends on sockets and moves with the application of physical force. Wheels come in different shapes according to the element you are conspiring. For instance, bikes have 26-inch wheels to 30-inch wheels. On the contrary, the wheels are much smaller if we consider a furniture unit.
What is a door?
A door is a simple vertical screen with varying thicknesses and controls access to whatever is present on the other end. There are several types of doors available, like the single door, double door, sliding door, glass door, folding and sliding door, and so on.
Most doors act like a swing. It means you can pull and push it to close the access to the other side. Plus, these doors form a connection with the wall or the frame with the help of hinges.
On the contrary, the shutter doors are sliding in nature. Multiple overlapping panels run along channels on the top and bottom. When you want to open something covered by a sliding door, you must slide it to the side and gain access.
For closing the door, reverse the action. Even if there are multiple panels, we consider the entire structure a single door, unlike the wheels.
Number of wheels based on vehicle type
Considering wheels form an association with the automobile industry, we shall continue our focus on the same only. The number of wheels will now vary from one vehicle type to another. Following are some of the examples you should know to determine how many wheels are in the world total:
- Bikes, motorbikes, cycles, and scooters feature two wheels on either end. We know the front wheel as the one connected to the brake and engine is known as the front wheel, while the rear wheel takes the back place.
- In regular cars, mainly four- to five-seater ones, the maximum number of wheels is four, located on each corner.
- Considering heavy-duty passenger cars, like SUVs, MPVs, CUVs, and so on, the number of wheels can vary from four to six. In this case, two wheels form the connection with the front axle and the rest two or four with the rear axle.
- Regular trucks and vans have four thick wheels on each corner. But if you consider the large cargo trucks or vans, the number of wheels will be eight, two on each corner.
- Campers usually have six to eight wheels, depending on the overall weight. If the camper has six wheels, two will be present at the front and four at the rear end. On the contrary, for eight wheel arrangement, two wheels will be reinforced on each corner of the base.
- Auto rickshaws come with three wheels- one at the front and two at the rear.
Number of doors according to the vehicle type
Since we have already learned about the number of wheels according to the vehicle type, it’s time to know how many doors there are. It will help you conclude in a much better way.
- Regular cars like sedans usually have four doors, two in the front row and two in the back.
- There are four to five doors in SUVs, MPVs, and other larger cars. If you choose a 6-seater car, there will be four doors on each side. But in the 8-seater car, there will be five doors. The other door at the rear end will also serve as the trunk door. ‘
- Two-wheelers and three-wheelers don’t come with any door.
- Trucks, both regular and heavy-duty ones have two doors on either side.
- In vans and campers, a single door is present.
How many wheels are there, as per statistical studies?
No matter what statistical approach you undertake, knowing how many wheels are in the world in 2023 or in previous years will be based on estimations. So, according to the current estimates, there are approximately 37 billion wheels in total. Furthermore, we can disintegrate the number in terms of the vehicle you have chosen.
Based on the count, we can get the total number of wheels for each vehicle type category, like cars, trucks, vans, campers, etc.
Challenges in the statistical count of wheels
There have been certain challenges in the statistical study of the wheels. For instance, the first death blow was in the form of assumptions. Whatever the recorded numbers are, they depend on theoretical concepts.
In addition to this, there have been restrictions like wheels present in furniture, toy, and so on. Many wheels are in the manufacturing, and shredding department, thrown into the garbage, and kept in the showrooms.
So, the overall study about how many wheels are in the world total is a mix of indirect calculations and assumptions. We ruled out several factors to ensure precise calculation of the values. In addition to everything, knowing more about the concept of wheels to understanding the numbers and their intertwined relationship with the cars is crucial.
So far, the absolute answer to how many wheels are in the world in 2023 is still in arbitrary numbers. First, there is no absolute decision concerning the number of cars to be released in 2023. Therefore, problems will arise, especially if we consider the new cars’ wheels. So, the present number of wheels on the earth is 37 billion, but we can expect that to rise in the coming years as the production of vehicles will skyrocket.