What Size Tire Fits 15×7 Rim(Know Your Right Tire Size)

Like every other car owner, are you stressing over the tire size with respect to the rim width? We agree with you that it is quite stressful to find the right-sized tire for your rim. However, you can still find it easily by knowing a few hacks.

So, what size tire fits 15×7 rim?

With a rim that has a diameter of 15 inches and a width of 7 inches, we have a few options for tires. You can go for the tire size of P 205/50 R15 which is the biggest option. You can also go for the smaller one which is P 195/50 R15. However, you have to keep some other parameters in mind as well while choosing the tire.

Are you thinking we are done? Not yet, it was just the hint of it. We have an entire article on this topic to enlighten you with all your queries. 

So what are we waiting for? Let’s jump right into the main part.

What is the Tire Size for 15×7 Rim?

For most car owners, finding the tire size for 15×7 rims is quite hateful. Before knowing the measurement, let us first know what does is mean by 15×7. Well, here 15 is the diameter of the wheel in inches, and 7 is the width of the wheel in inches.

The tire size of P 205/50 R15 is the biggest one which is suitable for a 15×7 rim. Which has a wheel diameter of 23.1 inches. And the popularity of this tire is around 31%. 

And the second-best fit is P 195/50 R15. which has a wheel diameter of 22.7 inches. The popularity is around 21%.

How to Figure out the Right Tire for My Rim

Tire size and rim are two intimately connected equipment of a vehicle. And it is very important to take the size of the rim into consideration. 

Because you would find only a few options of your right-sized tire width. 

Now tire size is connected with a few other parameters. However, if a rim size is not up to the mark compared to the tire width, there will be a problem. You would notice a drastic drop in performance, even if it may lead you to an accident. 

For measurement, you can use the measuring rim as a standard. And this is why all tire designers can use a single rim for measurements. And thus the tire designers can measure the tire using one rim when the tire pressure and temperature align. 

So if you want to measure the tire, like all the tire makers, you can go for an 8 inches rim for the tire size 235/45R17. And the rim which measures the tire basically measures the wheel over the tire.

That means if a tire is fit or almost fit over the rim, it will be well fitted for the real size. Nevertheless, every tire has its own tire width and rim width ratio. This ratio is very important to measure the tire size with respect to the measuring rim.

One very important note is, for every 5mm of change in tire width, 0.5 inches changes in rim width. 

Tire Width vs Rim Width Chart

Rim width and tire width are interconnected in terms of the perfect vehicle tires. A tire with flexible sidewalls allows fitting in a rim of different widths. 

There is a certain rim width for every tire size. On the other hand, there is a certain tire width range too for every rim size. 

Here are some tire sizes along with corresponding rim width noted for your convenience. 

Rim WidthTire SeriesTire Width (mm)
3.5 inches75, 80125, 135
4.5 inches60, 65, 70, 75, 80145, 165
5.5 inches45, 50, 55, 60, 65, 70, 75165, 175, 185, 195
6.5 inches45, 50, 55, 60, 65, 70195, 205, 215, 225
7.5 inches30, 35, 40, 45, 50, 55205, 215, 225, 235, 245
8.5 inches30, 35, 40, 45, 50, 55235, 245, 255, 265, 275
9.5 inches30, 35, 40, 45, 50, 55255, 265, 275, 285, 295
10.5 inches25, 30, 35, 40, 45285, 295, 305, 315
11.5 inches24, 30, 35, 40315, 325, 335
12.5 inches34525
13 inches35525

Hope you found the chart useful while taking the tire choosing the right tire according to the rim width. 

In the given chart, you would see along with the tire width there is the series of the tire given. Then what is the tire series represent? 

The tire series is basically a ratio. It is the ratio between the tire sidewall section height vs the tire section width. 

So if you see the same tire width with different tire series, then what does it mean? Well, it means the smaller one has the smaller sidewall. And the bigger one has a big sidewall. 

Which Tire Width is Best Suited for Your Rim Width?

You might have noticed from the chart, that for each tire width, there are multiple rim widths. So which one is the best suited for your tire size?

So for choosing the right size, you have already the measurement of your tire. If your rim width is near to the size of your actual tires measuring rim’s width, you are good to go. It would fit your rim. 

In simpler words, if your tire size is closer to the rim size, it will be well fitted in as your actual size. 

What are the Minimum and Maximum Range of Rim Width

From the mentioned chart, you must have noticed that for a particular rim width, a few tire sizes are available. And with the increasing series of tires, the rim width is also increasing. 

So, we can conclude that there are minimum and maximum tire widths for one rim width. But the fact is you are not supposed to find the exact tire width for a particular rim width. Sometimes, nominal sizes also work well. 

If your rims are too wide, it might improve the handling of the vehicle? However, the sidewheel will make the ride harsh. That occurs because the sidewheels are not able to bend enough on the harsh surface. 

On the other hand, too narrow rims are also not suitable for ties. During fast cornering, sidewall deformation might take place. 

So, while thinking about choosing the right rim, you have to keep these in mind.

We have a few suggestions of products for you that you might be needing. Check them out in the following chart. 

Hope you found the suggestions effective and helpful for the journey. 


Can we change the tire size on the same rim?

Tire and rims are not alternatives or interchangeable at all. The tire is an external part or adds to your vehicle. It is basically a part of the wheel setup. On the other hand, the rim size is fixed for your vehicle. But you can go for different sizes of tire for a particular rim width. And you can do it till the time the middle of the tires is the correct size. 

How to be sure if a tire will fit onto my rim?

A series of numbers are written on the tire from which you would be sure about your tire size. You have to make sure all the four tires of your vehicle have the same numbers written on them. But there are also some vehicles found now which has rear wheels and tires of different size. 

How much difference in the tire size with respect to the rim is acceptable?

When changing the tire size, it is said that you can accept the highest 3% of differences and not more than that. The difference is in the diameter or the height. Anything more than 3% would be risky for you. So before choosing the tire, make sure that you got the perfect measurement of it. 

Final Words

Did you get your query solved about what size tire fits 15×7 rim? Hope we could help you with all the necessary information along with some related ones. 

One last tip, don’t go for a tire having a noticeable difference with the rim width. It might be dangerous for you.

That was it for today’s topic. Until next time, happy driving!

Rob Dahm

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