Visual tire and disk online calculator
tire selection table and wheel rims
Correct selection of tires and wheels for the car
As the wise proverb says, "measure seven times and cut once." Therefore, having decided to replace the tires and wheels on your car, first select the dimension that is suitable specifically for your car. And the best 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 has decided to abandon standard-size wheels faces a similar task, and not everyone knows how to choose the right tire size, the tire disk calculator has taken its well-deserved place in the list of useful services for car owners on our website. Use the tire and rim size calculator to help you make the right choice.
Online tire and wheel calculator
The offered 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 in Runet.
Visibility of calculations
The visual tire and wheel calculator contains a schematic image of a car wheel, which immediately displays the values indicated in the calculator, which allows you to visually see changes in the dimensions of a wheel when changing its parameters.
Car tire calculator will quickly select possible sizes
The online tire calculator allows you to select tires by size for any passenger car in a few clicks. Fast and convenient calculator for the selection of tuning wheels for non-standard tire sizes. In a matter of minutes, you can determine the maximum or optimal dimensions the radius of the disc, its offset, as well as the width and height of the tire profile.
You can find tires for almost any car
First of all, the service is conceived as a tire and wheel selection calculator for passenger cars however, the ability to calculate wheels with rim diameters up to 20 inches makes it possible to use this online program, if appropriate, for those who need a truck tire calculator (tire calculator for truck tires).
Selection of disks by tire size and selection of tires by wheel parameters
The online tire and wheel selection program allows you to select both wheels and tires, and decide on suitable size rubber for your car.
Calculator wheel tire works online
The online tire calculator does not need to be downloaded and installed, the service is always available online. The convenience of the online service lies in the fact that it allows you to use the possibilities of selecting tires and rims in real time and without registration. The bus calculator can be accessed from any device with Internet access.
How to use a tire disk calculator
Visual tire calculator offers tire comparison different sizes... The calculator is very easy to use. As you can see, the shino disk calculator is divided into two parts. The upper area of the calculator includes fields for selecting tire and rim parameters, as well as a graphical representation of the wheel, where changes are displayed on the fly as soon as all dimensions are determined. And the lower area, which offers a full table of wheel sizes of different diameters with tires of different widths and profiles, which might fit your specified dimension as recommended by your car manufacturer. Presented size table possible tires and wheels allows you to quickly get information about the dimensions suitable for the car.
The main problem that the tire-disk calculator solves is that it allows you to choose the "cheap" tire size. For those who are not in the know, there are expensive tire sizes and cheap, but cheap, not because the tires are bad or a ten-year release date, but because the sizes are not popular with manufacturers, although the changes from the manufacturer's recommended size will be very small. Using the readings of the calculator, you can quickly determine the most inexpensive tire size for your car, after which it will be easier to determine the manufacturer.
If with summer tires inexpensive options can be caught in any dimension, since the pattern has not been identified, then in relation to winter tires everything is more or less obvious. If you add 5% of the profile height from original size... Then from the same manufacturer car tires, the difference in the cost of sale can be up to 30%. The calculation formula is simple, the higher the profile of the wheel (within reasonable limits), the cheaper it can cost.
A virtual tire calculator for rims and tires will help you make the right choice!
Service users do not need to do complex independent calculations of the difference in permissible sizes disco 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.
Do you want to choose a tire for your car, but don't know much about tire labeling? It's not a problem! In this section, we will help you figure out: what are the parameters of the tire, what they mean, and what kind of tire is suitable for your car.
Find tires / tire catalogDecoding of tire marking.
195/65 R15 91 T XL
195 is the width of the tire in mm.
65 - Proportionality, i.e. the ratio of the height of the profile to the width. In our case, it is equal to 65%. Simply put, with the same width, the larger this figure, the higher the tire will be and vice versa. Usually this value is referred to simply as “profile”.
Since the tire profile is a relative value, it is important to take into account when selecting tires that if instead of the 195/65 R15 standard size you want to put tires with the size 205/65 R15, then not only the width of the tire will increase, but also the height! Which is unacceptable in most cases! (except for the cases when both of these standard sizes are indicated in the car manual). You can calculate the exact data on the change in the outer dimensions of the wheel in a special tire calculator.
If this ratio is not indicated (for example, 185 / R14C), then it is equal to 80-82% and the tire is called full profile. Reinforced tires with such markings are usually used on vans and light trucks, where a high maximum wheel load is very important.
R- means a tire with a radial cord (in fact, now almost all tires are made this way).
Many people mistakenly think that R- stands for the radius of the tire, but this is precisely the radial design of the tire. There is also a diagonal design (denoted by the letter D), but recently it has practically not been produced, since it performance characteristics much worse.
15 - wheel (disk) diameter in inches. (It is the diameter, not the radius! This is also a common mistake). This is the "landing" diameter of the tire on the disc, i.e. this is the inner size of the tire or the outer one at the rim.
91 - load index. This is the maximum permissible load per wheel. For cars, it is usually done with a margin and when choosing tires is not a decisive value, (in our case, IN - 91 - 670 kg.). For vans and small trucks, this parameter is very important and must be observed.
Tire Load Index Table:
T- tire speed index. The larger it is, the faster you can ride on this tire (in our case, IS - N - up to 210 km / h). Speaking about the tire speed index, I would like to note that with this parameter the tire manufacturer guarantees the normal operation of the rubber with the constant movement of the car at the specified speed for several hours.
Speed Index Table:
American tire markings:
There are two different markings for American tires. The first one is very similar to the European one, only the letters "P" are placed in front of the standard size (Passanger - for passenger car) or "LT" (Light Truck). For example: P 195/60 R 14 or LT 235/75 R15. And another marking of the tire, which is fundamentally different from the European one.
For example: 31x10.5 R15(corresponds to European standard size 265/75 R15)
31
is the outer diameter of the tire in inches.
10.5
- tire width in inches.
R- a tire of radial design (older models of tires were with a bias design).
15
is the inner diameter of the tire in inches.
Generally speaking, apart from the unusual inches, the American tire marking is logical and more understandable, unlike the European one, where the tire profile height is not constant and depends on the tire width. And here everything is simple with the decoding: the first number of the standard size is the outer diameter, the second is the width, the third is the inner diameter.
Additional information indicated in the marking on the sidewall of the tire:
XL or Extra Load - reinforced tire, the load index of which is 3 units higher than that of conventional tires of the same standard size. In other words, if a load index of 91 is indicated on a given tire, marked XL or Extra Load, then this means that with this index, the tire is able to withstand a maximum load of 670 kg instead of 615 kg (see the table of tire load indices).
M + S or M&S tire marking (Mud + Snow) - mud plus snow and means that the tires are all-season or winter. On many summer tires for SUVs, M&S is indicated. However, these tires must not be used in winter because Winter tires have a completely different rubber composition and tread pattern, and the M&S badge indicates a good cross-country performance of the tire.
All Season or AS all season tires... Aw (Any Weather) - Any weather.
Pictogram * (snowflake)- rubber is intended for use in harsh winter conditions... If the sidewall of the tire does not have this mark, then this tire is intended for use in summer conditions only.
Aquatred, Aquacontact, Rain, Water, Aqua or pictogram (umbrella)- special rain tires.
Outside and Inside; asymmetrical tires, i.e. it is important not to confuse which side is external and which is internal. When installed, the Outside lettering should be on the outside of the car, and Inside on the inside.
RSC(RunFlat System Component) - RunFlat tires are tires on which you can continue driving a car at a speed of no more than 80 km / h with a FULL pressure drop in the tire (in the event of a puncture or cut). On these tires, depending on the manufacturer's recommendations, you can drive from 50 to 150 km. Different tire manufacturers use different designations for RSC technology. For example: Bridgestone RFT, Continental SSR, Goodyear RunOnFlat, Nokian Run Flat, Michelin ZP, etc.
Rotation or an arrow on the sidewall of the tire indicates a directional tire. When installing the tire, the direction of rotation of the wheel indicated by the arrow must be strictly observed.
Tubeless - tubeless tire... In the absence of this inscription, the tire can only be used with a camera. Tube Type - means that this tire must be used only with a tube.
Max Pressure; maximum allowable tire pressure. Max Load - maximum permissible load for each wheel of the car, in kg.
Reinforced or the letters RF in the standard size (for example 195/70 R15RF) mean that this is a reinforced bus (6 layers). The letter C at the end of the dimension (eg 195/70 R15C) denotes a truck tire (8 layers).
Radial This marking on a rubber in a standard size means that it is a tire of a radial design. Steel means there is a metal cord in the tire construction.
Letter E(in a circle) - the tire complies with the European ECE (Economic Commission for Europe) requirements. DOT (Department of Transportation - US Department of Transportation) - American quality standard.
Temperature A, B or C heat resistance of tires at high speeds on a test bench (A is the best indicator).
Traction A, B or C- the ability of the tire to brake on a wet road surface.
Treadwear; the relative expected mileage compared to the US specific standard test.
TWI (Tread Wear Indiration)- indicators of tire tread wear indicators. The TWI wheel can also be marked with an arrow. The gauges are evenly spaced at eight or six places around the tire circumference and indicate the minimum tread depth allowed. The wear indicator is designed as a protrusion with a height of 1.6 mm (the minimum tread size for light vehicles) and is located in the groove of the tread (usually in the drainage grooves).
DOT- Coded manufacturer address, tire size code, certificate, production date (week / year).
In order to choose the right tires for the disks, you need to know certain parameters, failure to adhere to which will seriously worsen the car's behavior on the road. Since the tire is put on the rim of the rim, the width of the profile must be proportional to it. We note right away that, despite the tuning widespread in recent years, automakers categorically do not recommend it. After all, if the sizes of disks and tires are very different, then the contact patch will not be even, which means that the control may get out of control.
In general, the question of matching tires and disks can be viewed 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 landing and other delights that we will not talk about, since we consider it more important to tell how to choose the right one in terms of safety and comfort tires to disks.
In order to choose the right tires for the rims, you need to know the labeling of the rims.
Ideally, that is, to be sure of safety, PCD disc(the diameter of the circle of the centers of the mounting holes) must not be changed. In an extreme case, the dimensions of the rims and tires may not correspond to each other at all, but then eccentric bolts are used for fastening, which allow you to install rims 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 alignment of tires and disks should be one hundred percent.
The dimensions of the rims and tires must also match with their central hole, but if for certain reasons this is not possible, an adjusting ring will come to the rescue (it is also a spacer ring). The setting ring has an outer diameter equal to the diameter of the hole in the disc, and the inner diameter corresponds to the diameter of the car hub. If the setting ring is put correctly, then the running characteristics will not change. It should be noted that the discs do not have stamped locating rings. Install them only on.
The disc markings do not indicate the maximum load ( MAX LOAD), you can find out this parameter either in the passport that some manufacturers of domestic wheels attach to their products, or look for this information on the website of the wheel manufacturer. This information is not very important, as manufacturers usually make discs with a margin of safety. But, if for some reason you decide to put, say, on the jeep discs for passenger car, then the maximum disk load will be an important parameter. And if you do not take it into account, the wheel may not withstand the load and deform, even falling into a small hole.
In addition, even if the dimensions of the tires and wheels are the same 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 against the suspension parts or the caliper, which is associated with the form of stamping or casting. Therefore, we recommend that you try on the wheel first before mounting the tire on the wheel.
Correspondence table for the width of tires and rims
|
Tire height |
Tire size |
Disc width (inches) |
||
|
R12 |
||||
|
82 |
125R12 |
3,5 |
3.0 |
4.0 |
|
70 |
145 / 70R12 |
4,5 |
4.0 |
5.0 |
|
R13 |
||||
|
82 |
145R13 |
4.0 |
3,5 |
5.0 |
|
80 |
135 / 80R13 |
3,5 |
3,5 |
4,5 |
|
70 |
135 / 70R13 |
4.0 |
3,5 |
4,5 |
|
65 |
155 / 65R13 |
4,5 |
4,0 |
5,5 |
|
60 |
175 / 60R13 |
5.0 |
5.0 |
6.0 |
|
55 |
195 / 55R13 |
6,0 |
5,5 |
7,0 |
|
R14 |
||||
|
82 |
145R14 |
4,0 |
3,5 |
5,0 |
|
80 |
175 / 80R14 |
5,0 |
4,5 |
5,5 |
|
70 |
165 / 70R14 |
5,0 |
4,5 |
6,0 |
|
65 |
155 / 65R14 |
4,5 |
4,0 |
5,5 |
|
60 |
165 / 60R14 |
5,0 |
4,5 |
6,0 |
|
55 |
185 / 55R14 |
6,0 |
5,0 |
6,5 |
|
R15 |
||||
|
82 |
125R15 |
3,5 |
3,0 |
4,0 |
|
80 |
185 / 80R15 |
5,5 |
4,5 |
6,0 |
|
70 |
175 / 70R15 |
5,0 |
5,0 |
6,0 |
|
65 |
185 / 65R15 |
5,5 |
5.0 |
6,5 |
|
60 |
195 / 60R15 |
6,0 |
5,5 |
7,0 |
|
55 |
185 / 55R15 |
6,0 |
5,0 |
6,5 |
|
50 |
195 / 50R15 |
6,0 |
5,5 |
7,0 |
|
45 |
195 / 45R15 |
6,5 |
6,0 |
7,5 |
|
R16 |
||||
|
65 |
215 / 65R16 |
6,5 |
5,5 |
7,5 |
|
60 |
225 / 60R16 |
6,5 |
6,0 |
8,0 |
|
55 |
205 / 55R16 |
6,5 |
5,5 |
7,5 |
|
50 |
205 / 50R16 |
6,5 |
5,5 |
7,5 |
|
45 |
195 / 45R16 |
6,5 |
6,0 |
7,5 |
|
40 |
215 / 40R16 |
7,5 |
7,0 |
8,5 |
|
R17 |
||||
|
55 |
225 / 55R17 |
7,0 |
6,0 |
8,0 |
|
50 |
205 / 50R17 |
6,5 | ||
When factory tires are worn out or if you want to install new rubber, the next question arises: which type of tire is ideal? Each car make and model is designed for individual tread and wheel parameters. All the necessary information is contained in the technical documentation or on the body vehicle- on the lid of the petrol tank from the inside.
The Internet-shop 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 imperative to find the correct rubber size. If you make a mistake and deviate from the factory standard sizes even by a few percent, the sensors will begin to distort the actual information, fuel consumption will increase, and driving itself will become unsafe.
Tire calculator: tire comparison
With the help of our electronic form, you can quickly and easily compare the circumference and diameter of the wheel, profile, tread. In addition, the tire calculator displays differences in suspension clearance, vehicle speed and engine RPM.
Tire calculator visual online: terms of use
In the upper left corner there are two forms for filling out:
- Previous size (standard size of the original tire);
- New size.
In the fields from left to right, you need to specify the width of the tire (millimeters), the ratio of height to width (percent) and the diameter of the rim (inches). These figures 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 filling in all the fields, the bus 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.
What is a tire calculator for:
With this tire calculator, you can easily calculate how the following changes will be made: wheel outer dimensions, height ground clearance(ground clearance), speedometer readings and other characteristics when installing tires with a different standard 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 standard size installed on your car, and then the one that you want to install.
The difference in speedometer readings and real speed depends on the speed of the car, the higher the speed, the greater the difference
| External dimensions | old | New | Difference | ||
|---|---|---|---|---|---|
| Tire width, mm (A) | 0 | 0 | 0 | ||
| Profile height, mm (B) | 0 | 0 | 0 | ||
| Disc diameter, mm (C) | 0 | 0 | 0 | ||
| Outside diameter, mm (D) | 0 | 0 | 0 | ||
| Change in ground clearance, mm | 0 |
A convenient tire calculator is placed on the website of the online store, which allows you to easily calculate the changes in wheel parameters when switching to a different tire size. With this online tool, you can calculate the external measurements of the wheel, ground clearance (ride height), calculate the speedometer readings and other characteristics.
With the onset of the new season, every responsible car owner considers it necessary to change the tires in accordance with the season. The best option will install tires of the size recommended by the automaker for a particular car brand. In cases where this is not possible, deviations in diameter in the 2% range are allowed.
Replacing rubber requires a serious approach. When choosing new tires and wheels, it is necessary to take into account such indicators as:
- tire width,
- profile height,
- inner diameter of the wheel,
- permissible speed indices.
Incorrectly selected tires can cause malfunctions in the car electronics, increase fuel consumption, deteriorate driving comfort, and also cause problems during a vehicle inspection at the traffic police.
How to calculate tires?
To find the correct tire size, you need to use a tire calculator, with which the theoretical dimensions are determined. All measurements are carried out in millimeters, and the speed in km / h. To make a calculation, you must enter the parameters of the tires of your car in the appropriate line. Then enter the dimensions new tire and the disk to be installed. After specifying all the parameters in the table below, information about changes in the width of the tire and the height of the profile, the inner and outer diameter, the difference in speeds (real and according to the speedometer readings) will appear.
What to look for when choosing a tire
- Installation of tires and wheels custom size can lead to damage to the tire itself, damage to the wheel and a decrease in the performance of the car. When choosing a rubber, it is better to rely on the recommendations of the automaker.
- If the wheel rim diameter 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 in the quality of the car's handling. The tire can rub against the body and suspension, causing rapid wear.
- Even with the smallest difference between the indicators on the speedometer and in reality, the error can increase significantly with increasing speed, which makes driving unsafe.
- Narrow or too wide rims can deform the tire. This, in turn, will lead to premature wear and poor performance.
