Tire calculation. Tire markings. Tire calculator for European tires

If the factory tires are worn out or you want to install new tires, the next question arises: which type of tire is ideal? Each make and model of car is designed for individual tread and wheel parameters. All necessary information is contained in the technical documentation or on the body vehicle– on the inside of the petrol tank cap.

The online store of tires and wheels "MOSSHINA" has developed a special online tire calculator, with the help of which it is possible to determine the differences between tires in percentages, inches and centimeters.

Visual tire calculator

It is extremely important to choose the correct tire size. If you make a mistake and deviate from the factory standard sizes even by a few percent, the sensors will begin to distort up-to-date information, fuel consumption will increase, and driving itself will become unsafe.

Tire calculator: tire comparison

Using our electronic form, you can quickly and easily compare wheel circumference and diameter, profile, and tread. In addition, the tire calculator displays differences in suspension clearance, vehicle speed and engine speed.

Online visual tire calculator: rules of use

In the upper left corner there are two forms to fill out:

• Previous size (original tire size);
• New size.

In the fields from left to right you need to enter the tire width (millimeters), height to width ratio (percentage) and rim diameter (inches). These indicators are indicated on the tire profile. For convenience and clarity, an image of the tire and wheel is displayed, which can be turned on and off.

When all fields are filled in, the tire calculator will calculate the difference and provide all the information in the table on the right. If the difference is 3% or more, then we do not recommend installing such tires.

Car owners use a tire calculator to select tires and wheels of the appropriate size. All calculations are performed online. The user does not have to deal with lengthy, incomprehensible calculations. The application is multifunctional, since the motorist will be able to understand how to change the dimensions of the wheel, taking into account changes in the sizes of tires and rims. Let's look at the features of using the service.

Tire calculator functionality

The tire selection calculator can help you select tires that are suitable for a specific car in size and characteristics. Vehicle owners resort to the service when it is time to replace tires and wheels on their vehicles. In order not to waste time on meaningless “changes of shoes” and checks, use the offered online service. Tire calculator features:

• you can calculate tire sizes;
• the service provides various parameters - wheel diameters, changes in the height of clearance between the road and the car (clearance), widening of the track;
• assistance in converting inches to millimeters or vice versa, using American and European size charts.

Tire calculator was designed to speed up the selection of tires, making the procedure much easier. Since every car owner is faced with difficult choices, online calculators very quickly gained popularity among users.

How to use a tire calculator

There are several tips that will help you use the tire size calculator for its intended purpose. Step by step instructions consists of the following steps:

1. In the form you will need to enter the size of the tires installed on the car, as well as those that you would like to install.
2. The user will see a special table with the calculation results. From this data you can find out what tires are needed for a particular vehicle.
3. After selecting tires, you can proceed to calculating the size of the wheels. Here you will need to specify exact data - the maximum/minimum width of the disk installed on the car. The service will perform all calculations automatically.
4. If you need to convert inches to millimeters, you can use an online converter. This action will allow you to find analogues in American and European sizes. Comparison using a tire calculator will be as accurate as possible, since all the necessary information is included in the online service database.

The general selection procedure is very simple, but the car owner will definitely be required to enter initial data. The parameters must be as accurate as possible so that there are no errors or inaccuracies in subsequent results.

You can use this service on our website. The program is freely available; anyone can make calculations in a few minutes. To simplify the process of use, you should use the instructions provided.

Using a tire calculator, you can easily calculate how the following will change: the external dimensions of the wheel, the height ground clearance(clearance), speedometer readings and other characteristics when installing tires of a different size on your car. The calculator calculates all tire sizes in millimeters, and vehicle speed in km/h.
The calculator will also help you calculate the required rim width for a certain tire size.

How to use the tire calculator:

First enter the standard size installed on your car, and then the one you want to install and click “calculate”. The table on the right will show the results of the calculator's calculations.
Detailed information about tire markings in the section: tire markings.

We recommend that you install only the factory tire sizes that are listed in the owner's manual for your vehicle. Installing non-standard sizes may void the dealer's warranty, as well as degrade vehicle performance and handling.

Tire calculator for European tires

Old size:

New size:

145 155 165 175 185 195 205 215 225 235 245 255 265 275 285 295 305 315 325

/ 25 30 35 40 45 50 55 60 65 70 75 80 85

12 13 14 15 16 17 18 19 20 21 22 23 24

Found in the directory:

175/70 R13 -

175/70 R13 -

When converting tire sizes using a calculator, keep in mind that:

With increasing diameter wheel rim, (and, as a consequence, reducing the height of the tire profile so that the outer diameter of the wheel remains unchanged) increases the load on the car’s suspension, and comfort also worsens (the car will become noticeably stiffer).

If the tire profile increases excessively, the car becomes “rolly”, handles worse, and at critical values ​​of the profile height, the tire may begin to cling to parts of the car body and suspension, which will subsequently lead to its destruction.

In order to choose the right tires for the wheels, you need to know certain parameters, failure to comply with which will seriously worsen the car’s performance on the road. Since the tire fits on the rim of the disk, the width of the profile must be commensurate with it. Let us immediately note that, despite the widespread recent years tuning, automakers categorically do not recommend this. After all, if the sizes of the wheels and tires vary greatly, the contact patch will not be even, which means that control may get out of control.

In general, the issue of matching tires and wheels can be considered from two sides. The first is the selection of tires and wheels based on the manufacturer’s recommendations, and the second is this fitment. Fitment is the study of the fit of the tire on the rim and the position of the wheels relative to the wheel arches, which includes negative camber, low seating and other delights that we will not talk about, since we consider it more important to tell how to choose the right one from the point of view of safety and comfort. tires to rims.

To choose the right tires for the wheels, you need to know the markings of the wheels.

Ideally, that is, to be sure of safety, the PCD of the disk (the diameter of the circle of the centers of the mounting holes) cannot be changed. In extreme cases, the sizes of the wheels and tires may differ slightly from each other, but then bolts with eccentrics are used for fastening, which allow you to install wheels with PCD 100 mm on cars with PCD 98 mm. However, it is worth noting that the maximum difference in displacement should not exceed 2 mm, and ideally, the match between tires and wheels should be one hundred percent.

The dimensions of the wheels and tires must also match their central hole, but if for certain reasons this is not possible, an installation ring (also known as a spacer ring) will come to the rescue. The installation ring has an outer diameter equal to the diameter of the hole in the disk, and the inner diameter corresponds to the diameter of the car hub. If the installation ring is installed correctly, then the driving characteristics will not change. It is worth noting that stamped discs do not have mounting rings. They are installed only on .

The disk markings do not indicate the maximum load ( MAX LOAD), you can find out this parameter either in the passport, which is supplied by some manufacturers domestic wheels on your products, or look for this information on the disk manufacturer’s website. This information is not very important, since manufacturers usually make discs with a safety margin. But, if for some reason you decide to put, say, wheels on a jeep for passenger car, then the maximum disk load will be important parameter. And if you do not take it into account, the wheel may not withstand the load and become deformed, even falling into a small hole.

In addition, even if the sizes of tires and wheels match in all respects, there is still a risk that the wheel will not fit on the car. The reason for this is the so-called X-factor, when the disc rests on the suspension parts or caliper, which is due to the form of stamping or casting. Therefore, we recommend that you first try it on before beading a tire onto a wheel.

Correspondence table for tire and wheel widths

Visual online tire and disk calculator

tire selection table and rims

Correct selection of tires and wheels for the car

As the wise proverb says, “measure twice and cut once.” Therefore, when you decide to replace tires and wheels on your car, first select the size that is suitable specifically for your car. And the best choice for these purposes is a tire selection calculator - an online service for car owners, created just to simplify and speed up the selection of tires and wheels.

Since everyone who decides to abandon standard size wheels faces a similar problem, and not everyone knows how to choose the right tire size, tire disk calculator has taken a well-deserved place in the list of useful services for car owners on our website. Use the tire and wheel size calculator to make the right choice.

Online tire and wheel calculator

The proposed tire and wheel calculator has obvious advantages that its users have appreciated in practice; many of them believe that this is the best tire calculator on the RuNet.

Visibility of calculations

The visual calculator of tires and wheels contains a schematic image car wheel, which immediately displays the values ​​​​specified in the calculator, which allows you to clearly see changes in wheel dimensions when changing its parameters.

Auto tire calculator will quickly select possible sizes

The online tire calculator allows you to select the tire size for any passenger car in a few clicks. A quick and convenient calculator for selecting tuning wheels for non-standard tire sizes. In a matter of minutes you can decide on the maximum or optimal sizes the radius of the disc, its offset, as well as the width and height of the tire profile.

You can choose tires for almost any car

First of all, the service is conceived as a calculator for selecting tires and wheels for passenger cars, however, the ability to perform calculations for wheels with a rim diameter of up to 20 inches allows, in appropriate cases, the use of this online program for those who need a calculator truck tires(tire calculator for truck tires).

Selection of wheels by tire size and selection of tires by wheel parameters

The online tire and wheel selection program allows you to select wheels for your tires and determine the appropriate tire size for your car.

Calculator wheel tires works online

The online tire calculator does not need to be downloaded and installed; the service is always available online. Convenience online service is that it allows you to use the capabilities of selecting tires and rims in real time and without registration. The tire calculator can be accessed from any device with Internet access.

How to use a tire disc calculator

Visual tire calculator offers tire comparison different sizes. The calculator is very easy to use. As you can see, the tire disc calculator is divided into two parts. The top area of ​​the calculator includes fields for selecting tire and wheel options, as well as a graphical representation of the wheel, where changes are displayed on the fly once all sizes are determined. And the lower area, which offers a complete table of wheel sizes of different diameters with tires of different widths and profiles that could fit your given size recommended by the manufacturer of your car. The presented size table of possible tires and wheels allows you to quickly obtain information about the dimensions suitable for the car.

The main problem that a tire and disk calculator solves is that it allows you to select a “cheap” tire size. For those who don’t know, there are expensive tire sizes and cheap ones, but they are cheap not because the tires are bad or the production date is ten years old, but because the sizes are not popular with manufacturers, although the changes from the manufacturer’s recommended size will be very minor. Using the calculator's readings, you can quickly determine the cheapest tire size for your car, after which it will be easier to decide on the manufacturer.

If with summer tires inexpensive options can be found in any size, since no pattern has been identified, then in relation to winter tires everything is more or less obvious. If you add 5% of the profile height of the original size to the tire size recommended by your car manufacturer to search. Either from the same manufacturer car tires, the difference in the sale price can be up to 30%. The calculation formula is simple: the higher the wheel profile (within reasonable limits), the cheaper it can cost.

A virtual tire calculator for wheels and tires will help you make the right choice!

Users of the service do not need to make complex independent calculations of the difference in permissible sizes tires and wheel offset, the disc tire calculator provides a detailed comparison table between the recommended size and the desired size, based on which you can easily make your choice.

In addition to the visual tire calculator, our website contains other online services useful for car owners.