Truck tire calculator visual. Visual tire comparison calculator. Old tire size

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, the tire and disc 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

Visual calculator 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 have been 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 it solves tire and disk calculator, 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!

Service users 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.

Why do you need a tire calculator:

With this 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.

Old tire size

Width

Height

Diameter

New tire size

Width
Select 5.0 5.5 6.0 6.5 7.0 7.5 8.5 9.5 10.5 11.5 12.0 12.5 13.0 13.5 14.5 125 135 145 155 165 175 185 195 205 215 225 235 245 255 265 275 285 295 305 315 325 335 345 355 365

Height
Select 25 27 30 31 32 33 34 35 38 38.5 40 45 50 55 60 65 70 75 80 85 90

Diameter
Select 12 13 14 15 16 16.5 17 17.5 18 19 20 21 22 23 24 25 26 28 30 32

First enter the size installed on your car, and then the one you want to install.

The difference in speedometer readings and actual speed depends on the speed of the car; the higher the speed, the greater the difference

The online store website contains a convenient tire calculator that allows you to easily calculate changes in wheel parameters when switching to a different tire size. Using this online tool, you can calculate external wheel measurements, ground clearance (ride height), calculate speedometer readings and other characteristics.

With the onset of the new season, every responsible car owner considers it necessary to change tires in accordance with the time of year. The best option tires will be installed in the size recommended by the automaker for a specific car brand. In cases where this is not possible, deviations in diameter within a 2% range are allowed.

Replacing tires requires a serious approach. When selecting new tires and wheels, you need to take into account indicators such as:

• tire width,
• profile height,
• wheel inner diameter,
• acceptable speed indices.

Incorrectly selected tires can cause malfunctions in the vehicle’s electronics, increase fuel consumption, deteriorate driving comfort, and also cause problems during vehicle inspection by the traffic police.

How to calculate tires?

To select the tires of the required size, you need to use a tire calculator, which can be used to determine the theoretical sizes. All measurements are taken in millimeters and speed in km/h. To make a calculation, you should enter the tire parameters of your car in the appropriate line. Then enter the dimensions new tire and the disk that will be installed. After specifying all the parameters in the table below, information will appear on changes in tire width and profile height, internal and external diameter, and the difference in speeds (real and according to the speedometer).

What to look for when choosing a tire

• Installing tires and wheels of non-standard size can lead to damage to the tire itself, damage to the disk and reduced vehicle performance. When choosing tires, it is better to rely on the recommendations of the car manufacturer.
• If the diameter of the wheel disk is larger, then the load on the suspension may increase. To maintain the same diameter of the outer wheel, the profile height should be reduced.
• If you choose tires with a greatly increased profile, you need to be prepared for a loss of car handling quality. The tire can touch the body and suspension, which will lead to rapid wear.
• Even with the slightest difference between the indicators on the speedometer and in reality, the error can increase significantly as the speed increases, which makes driving unsafe.
• Narrow or too wide rims can cause tire deformation. This, in turn, will lead to premature wear and deterioration in performance.

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 terms of 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.

Instructions

Look on the label in the driver's side doorway for the recommended tire size. Write it down on paper or remember it. Find wheels of this size in a car dealership and use a tape measure to measure the outer diameter of the tire. Write this value down on paper. Drive the car into the pit and turn the front wheels completely: first in one direction and then in the other direction. Use a ruler or tape measure to measure the distance from the tire to the nearest structural element and write down these values ​​on paper.

When choosing the tires you like, take into account the diameter of the future rims, and, depending on the size of the future tire, select the width of the rims. The required wheel width is equal to the tread width. It may be easier to find a disc with a slightly larger diameter and the width you need. For example, take 14-inch wheels instead of 13 and choose tires for them. This option will be even more advantageous in terms of durability, but it will be more expensive.

Try to buy tires overall dimensions which will be approximately the same as the recommended ones. For example, the manufacturer recommends tires with dimensions 175/70R13 86S. 175 is the overall width of the tire in millimeters, /70 is the height of the tire profile as a percentage of the width, R-13 is the mounting diameter corresponding to the diameter of the rims, 86 is the load factor, S is the speed index. It is worth noting that the overall width of the tire may differ from the tread width, so if you want a wider tread, then pay attention to this feature. Do not buy tires with low load and speed coefficients.

If you want to put R16 wheels on your car instead of R13, find tires of the appropriate width. Since there are no 175mm wide R16 tires, it is more realistic to find tires 215mm wide or wider. Look at your notes and calculate how many centimeters you have left. Increasing the tire width by 1 cm more than recommended reduces the measured distance between the wheel and the body by 5 mm. Please note that it is not advisable to increase the wheel diameter by more than 3 cm, as this will lead to increased consumption fuel and to the deterioration traction characteristics cars. Select suitable tires and measure their diameter with a tape measure. Compare with recommended wheel diameter. If the recommended dimensions of the future wheel are exceeded within your calculated norm, you can safely buy the selected tires. The speed and load coefficient in this case will significantly exceed the recommended one, which will have a beneficial effect on the durability of the rubber.

Tires made in America and Europe have different markings. A situation often arises when it is necessary to convert inches to centimeters. In this article we will describe ways to decipher tire sizes in centimeters.

Tire marking in metric system

The main dimensions of tires are indicated by markings, these include:

1. Tire profile width is the distance, expressed in millimeters or inches, between the outer sides of the sidewalls of an inflated tire, without taking into account elevations, trim or belts. The specified value should not be more than 30% greater than the width of the rim of the product.
2. Series of tires. Indicates the ratio of the width and height of the product profile. Allows you to distinguish rubber in this way:

• low profile - series less than 70%;
• high profile - in the range of 70-82%;
• full profile - more than 85%.

1. Tire design. There are radial and diagonal tires. In the first case, the fibers of the cord layer are placed perpendicular to the circumference of the wheel. In the second option, the cord threads are overlapped. Radial tire design is more common; such tires provide better traction between the wheels and the road surface, and they are more reliable during operation.
2. Wheel radius.

How to understand what tire markings mean? Markings on the side car tires applied by tire manufacturers. Factory markings are in metric or inch units. For example, the size of tires marked in the metric system 265/75 R15 corresponds to the designation of the inch system 31 × 10.5 R15. The decoding of these symbols in centimeters means:

1. The designation 265/75 R15 indicates the tire sizes:

• 265 is a number that determines the width of the tire (one centimeter is equal to ten millimeters, 265 mm = 26.5 cm);
• 75 is a percentage (75%) that determines the relationship between the tire profile height and the tire width (265 * 0.75 = 198.8 mm or 19.9 cm), the found number indicates the tire profile height;
• R - denotes radial tire type;
• 15 - wheel diameter, the size is indicated in inches, you can convert the specified parameter to centimeters by multiplying the digital value of interest by 2.54, since 1 inch is equal to 2.54 cm, in the end we get 15 * 2.54 = 38.1.

1. The designation 31×10.5 R15 stands for:

• 31 - wheel height (31 inches or 31*2.54=78.7 cm);
• 10.5 - tire width (10.5 inches or 10.5 * 2.54 = 26.7 cm);
• R - indicates the radial type of tire;
• 15 - determines the diameter of the wheel (15 inches or 15*2.54=38.1 cm).

• subtract its radius from the total height of the tire (78.7-38.1=40.6 cm);
• divide the resulting value by 2 (40.6/2=20.3 cm).

Differences in tire markings

When deciphering tire sizes, pay attention to the letter in front of the tire dimensions:

1. “P” - indicates the “P-metric” system, used for minivans, light pickups (with a load capacity of up to 0.5 tons). This system is very convenient; it is often used by tire manufacturers.
2. “T” - the indicated letter marks “spare” tires: the rubber can be used until the main tire is repaired or replaced.
3. “LT” stands for the Light Truck-metric system, designed for trucks and vehicles capable of transporting large loads. This category includes vehicles with a carrying capacity of up to 1 ton.
4. “ST” - indicates “Special Trailer Service”, the products are designed for caravans and can also be used to transport boats or cars.

Letter values ​​may appear at the end of tire markings, in which case they mean:

1. “LT” - the tire refers to products with early markings:

• “Numeric” - numeric, tires are designed for vehicles transporting heavy loads, trailed trailers
• “Wide Base” - tires with a wide base; manufacturers produce such products with a rim diameter of 16.5 inches;
• “Flotation” - flotation, large-sized tires that allow the car to move on a sandy surface or mud.

1. “C” - tires for commercial use, suitable for vans and delivery vehicles capable of transporting large loads.

If there is no marking at the beginning letter designation and a three-digit number, for example, 45R15, then this is a tire with a metric size of the Euro-metric system, applicable on tires from European manufacturers. The indicated dimension corresponds to the decoding according to the “P-metric” system, but is characterized by lower loads.

• 235 - product width (235 mm = 23.5 cm);
• 710 - a number indicating the outer diameter of tires (710 mm = 71.0 cm);
• 460 - tire rim diameter (460 mm=46 cm);
• A - designation of asymmetrical rubber beads, for example, 460A means that the outer bead has a diameter of 45 cm, and the inner one has a diameter of 47 cm.

This non-standard marking is designed for cars with wheels of a specific size, which differ in side profiles from standard metric or inch products. When faced with non-standard markings, it is better to find out their decoding from the tire manufacturer.

Comparison of calculated data

Independent decoding of tire sizes requires a certain accuracy of calculations. You can check whether the conversion from centimeters to inches and vice versa is correct using tire calculators. With their help, you can also find out how many tire sizes are suitable for a particular car model.

Tire calculators are easy to find on the Internet; they usually have American and European sizing systems at the same time. Therefore, by entering the tire sizes recommended by the car manufacturer in the metric system, it is possible to obtain a list of American and European tires. This is very convenient, if necessary, select the brand of tires you are interested in, and also view the possibility of changing the tire sizes recommended by the manufacturer. When using tire calculators, it is necessary to take into account the error arising from rounding, so it is better to translate the dimensions of interest manually, then check them with the options calculated by the Internet resource.

Conclusion

American rubber markings, if we do not take into account the unusual inches, are very convenient to use. But in most situations you have to deal with the metric notation system. Converting inch dimensions to centimeters is not difficult if you understand the decoding of the designations applied by manufacturers to lateral surface car tires In this case, it is necessary to take into account the error in calculations, which may arise due to inattention or rounding of the obtained values. To correctly calculate the dimensions, it is better to use manually, then compare the obtained parameters with the data of tire calculators. We do not recommend using only one method, since the embedded electronic computer programs also contain a certain rounding error.