Do you have plans to purchase a whole new set of tires for your vehicle but don’t have the least idea which one to choose among so many different options? In the article “205 75R14 vs 205 75R15 tire size” we will discuss two tire sizes that may look.
These two sizes may look similar at first glance, but there are important differences between them that can affect the performance and safety of your vehicle.
Understanding the key differences between these two tire sizes can help you make an informed decision when it comes to selecting the right tires for your vehicle.
So, if you are someone who wants to know all the major differences that these two tires possess, then you should not skip any points and stick to the article till the very end.
205/75r14 Vs 205/75r15 Tire Size – 1st Chart of Comparison
Both tires 205 75r14 and 205 75r15 have some key differences that make both these tires really special. All the main differences are shown in the chart below:
| Main Subjects | 205 75R14 Tires | 205 75R15 Tires |
|---|---|---|
| Overall Diameter | 26.11 inches | 27.11 inches |
| Section Width | 8.07 inches | 8.07 inches |
| Sidewall Height | 6.05 inches | 6.05 inches |
| Rim Diameter | 14 inches | 15 inches |
| Circumference | 82.02 inches | 85.16 inches |
| Radius | 13.05 inches | 13.55 inches |
| Revs Per Mile | 797/ ml | 767/ ml |
| Typical Weight | 20 lbs | 27 lbs |
| Tread Depth | 0.24 inches | 0.24 inches |
| Tire Type | A-Radial Ply Tire | A-Radial Ply Tire |
205 75r14 Vs 205 75r15 Tires: Discussion on Differences
Now let us look at the discussion in detail so that you can understand the differences better. Here goes the discussion:
Overall Diameter
- Improves the fuel economy
- Absorbs the imperfections of the road better
- Gives the vehicle an aggressive and sporty look
- Provides improved traction and braking performance
The overall diameter of the 205 75r14 tires is 26.11 inches. On the other hand, the overall diameter of the 205 75r15 tires is 27.11 inches. The difference between the two tires in this regard is only 1 inch. Percentage-wise, the difference stands at 3.8%.
Section Width
- Provides better traction and grip
- Improves handling and stability of the vehicle
- Enhances the look and the ride comfort of the vehicle
- Gives the vehicle a better stance and improves the aerodynamics.
The cross-section width or the section width of the tire is the measurement from sidewall to sidewall when it is mounted and inflated to its recommended pressure.
The 205 75r14 tires have a section width of 8.07 inches. Whereas the section width of the 205 75r15 tires is also 8.07 inches. So, there is no difference between the two tires in this respect.
Sidewall Height
- Provides better ride comfort
- Increases the tire’s ability to flex
- Improves the stability of the vehicle
- Gives the vehicle a luxurious and elegant look
The sidewall height of a tire is the measurement of the tire from the edge of the rim to the top of the tread, and it’s usually expressed as a percentage of the section width.
The sidewall height of the 205 75r14 tires is 6.05 inches. The same sidewall height is also noticeable for the 205 75r15 tires. So, in this regard, there is absolutely no difference between the two tires.
Wheel Size
- Improves the speed of the vehicle and makes it faster
- Puts impact on the weight of the vehicle
- Impacts the range of the braking system
- Improves the acceleration process
The wheel size of a tire refers to the diameter and width of the wheel on which the tire is mounted. The wheel size can affect a vehicle’s performance and handling in several ways.
The wheel size for the 205 75r14 tires is 14 inches. On the contrary, the wheel size for the 205 75r15 tires is 15 inches. In terms of wheel size, the 205 75r15 tires are 1 inch bigger than the 205 75r14 tires.
Circumference
- Improves the stability of the vehicle
- Changes the speedometer’s readings
- Enhances the gear ratio of the vehicle
- Increases the overall performance of the vehicle
The circumference of the 205 75r14 tires is 82.02 inches. The circumference of the 205 75r15 tires is 85.16 inches. The difference between the two tires in this regard is 3.14 inches. Percentage-wise, the difference stands at 3.8%.
Radius
- Influences the anti-lock braking system
- Helps to find the replacement parts easily
- Improves the anti-lock braking system of your vehicle
- Influences the speedometer as well
The radius of the 205 75r14 tires is 13.05 inches. On the other hand, the radius of the 205 75r14 tires is 205 75r15 tires are 13.55 inches. The difference between the two tires in his respect is 0.50 inches.
Revs Per Mile
- Saves the gearbox from overheating
- Protects the vehicle from vibration
- Provides an easy transition in speed
- Prolongs the lifespan of the engine
The revolutions per mile (RPM) of a tire is the number of times the tire completes one full rotation in one mile. It is a measure of the speed at which the tire is rotating.
The RPM of the 205 75r14 tires is 797/ ml. The RPM of the 205 75r15 tires is 767/ ml. The difference between the two tires in this respect is 30 / ml. The RPM of the 205 75r14 tires is slightly higher than the 205 75r15 tires.
Weight of the Tire
- Increases the weight of the vehicle
- Impacts on the cornering rate
- Improves the handling of the vehicle
- Influences the acceleration process in general.
The typical weight of the 205 75r14 tires is 20 lbs. On the contrary, the typical weight of the 205 75r15 tires is 27 lbs. The difference between the two tires in this respect is 7 lbs. This means that the weight of the 205 75r15 tires is slightly higher.
Tread Depth
- Offers protection from aquaplaning
- Influences the speed of the vehicle
- Enhances the controlling system of the vehicle
- Improves the driving safety as well
The tread depth of the 205 75r14 tires is 0.24 inches. The same tread depth is also applicable for the 205 75r15 tires. So, there is no difference between these two tires in this regard.
Tire Type
- Prolongs the lifespan of the tire
- Withstands heavy load and pressure
- Can offer a lower fuel consumption rate
- Improves the handling of the vehicle
Both the tires 205 75r14 and 205 75r15 have a radial tire construction type. This is the best and the most famous tire construction type available in the market. Almost 99% of tire manufacturing companies use this construction type for their tires.
205 75r14 Vs 205 75r15 Tires: 2nd Chart of Comparison
We have compiled an additional list of differences that will blow your mind. Here is the second chart:
| Main Subjects | 205 75R14 Tires | 205 75R15 Tires |
|---|---|---|
| Sidewall Letters | Black | Black/ white |
| Actual Speed | 62.14 mph | 59.84 mph |
| Max Load | 1760 lbs | 1820 lbs |
| Rim Width Range | 5-7 inches | 5-7 inches |
| Aspect Ratio | 75 | 75 |
| Max PSI | 50 | 50 |
| Speedometer Reading | 100 km/h | 96.31 km/h |
| Speedometer Reading Status | Correct | slightly different |
Sidewall Letters
- Tells us about the aspect ratio of a given tire
- Gives information regarding the actual size of the tire
- Provides information regarding the load index of the tire
- Shows the real history of a given tire type
The sidewall letter provides valuable information about a given tire. You can learn many important things such as aspect ratio, speed index, load index, tread width, and plenty more. The sidewalls for both tires contain all the useful info mentioned above.
Actual Speed
- Helps the vehicle to reach the top speed easily
- Makes the acceleration process easier
- Gives genuine information about the actual speed of the vehicle
- Provides information regarding the RPM of a tire.
The actual speed of the 205 75r14 tires is 62.14 mph. Whereas, the actual speed of the 205 75r15 tires is 59.84 mph. The difference between the two tires in terms of actual speed is 2.3 mph.
Max Load
- Tells us about the strength of a tire
- Gives us information about the lifespan of a tire
- Show us the load-carrying capacity of every tire
- Informs you about driving safety as well.
The max load capacity for the 205 75r14 tires is 1760 lbs. Whereas, the max load capacity for the 205 75r15 tires is 1820 lbs. The difference between the two tires in this respect is 60 lbs.
Rim Width Range
- Controls the friction between the road and the wheel
- Enhances the overall performance of a tire
- Improves the handling of the vehicle
- Influences the rolling resistance of a tire
The rim width range is typically expressed in inches or millimeters and can be found on the sidewall of the tire. The rim-width range for both tires is the same and it is 5-7 inches.
Aspect Ratio
- Gives more flex to the tire
- Offers a smoother ride
- Provides better handling
- Improves the stability of the vehicle
The aspect ratio of a tire is the ratio of the tire’s section height to its section width. It is typically expressed as a percentage and can be found on the sidewall of the tire. A tire with a higher aspect ratio, such as 80 or 70, means that the sidewall of the tire is taller and the tire will have more flex.
This also provides a smoother ride and better handling. Both the tires 205 75r14 and 205 75r15 have the same aspect ratio. So, in this respect, there is absolutely no difference between the two tires.
205 75R14 Vs 205 75R15 Tire Size – Top 3 Advantages
In this section we will discuss all the major advantages that these two tires provide to users around the world. This will give you a clear idea of what benefits you will get by using these two tires for your vehicle.
Advantages of 205 75R14 Tire
Some of the main advantages of 205 75R14 tires are given below:
Smaller Overall Diameter:
205 75R14 tires have a smaller overall diameter than 205 75R15 tires, which results in a slightly improved fuel economy.
Lighter Weight
205 75R14 Tires are generally lighter than 205 75R15 tires, which can result in improved acceleration and braking performance.
Easier to Find
205 75R14 Tires are more commonly available than 205 75R15 tires and may be easier to find in certain areas.
Advantages of 205 75R15 Tire
Some of the main advantages of 205 75R14 tires are given below:
Increased Tire Height
205 75R15 Tires have a taller overall height than 205 75R14 Tires, which can result in a larger contact patch and improved traction.
Increased load capacity:
205 75R15 Tires are rated for a higher load capacity than 205 75R14 Tires, which can be beneficial for vehicles that carry heavy loads.
Increased diameter:
205 75R15 Tires have a larger overall diameter than 205 75R14 Tires, which can result in a more comfortable ride and better stability.
It’s worth noting that these differences are relatively small and may not be noticeable in everyday driving. Additionally, other factors such as tread design, construction, and brand can also affect the performance of tires.
Size difference between 205/75 R15 and 205/75 R14 tires
Step 1: Understand the Tire Size Notation
- The numbers in both tire sizes, “205/75 R15” and “205/75 R14,” contain important information about the tire’s dimensions.
Step 2: Decode the Numbers
- The first number, “205,” represents the tire’s width in millimeters.
- The second number, “75,” is the aspect ratio, indicating that the tire’s sidewall height is 75% of its width.
- The letter “R” signifies that the tire is of radial construction.
- The last number, “15” or “14,” denotes the diameter of the wheel (rim size) that the tire is designed to fit in inches.
Step 3: Calculate the Sidewall Height
- For both tire sizes, calculate the sidewall height by multiplying the tire width (205 mm) by the aspect ratio (75% or 0.75):
- For a 205/75 R15 tire: 205 mm x 0.75 = 153.75 mm
- For a 205/75 R14 tire: 205 mm x 0.75 = 153.75 mm
Step 4: Calculate the Total Tire Diameter
- To find the total tire diameter, add twice the sidewall height to the wheel’s diameter (rim size):
- For a 205/75 R15 tire: (2 x 153.75 mm) + 15 inches (15 inches = 381 mm) = 689.5 mm
- For a 205/75 R14 tire: (2 x 153.75 mm) + 14 inches (14 inches = 355.6 mm) = 663.1 mm
Step 5: Find the Difference in Tire Diameter
- Calculate the difference in diameter between the two tires:
- 689.5 mm (205/75 R15) – 663.1 mm (205/75 R14) = 26.4 mm
Step 6: Convert the Difference to Inches
- To express the difference in inches, divide by 25.4 (since there are 25.4 millimeters in an inch):
- 26.4 mm / 25.4 = approximately 1.04 inches
Step 7: Conclusion
- The 205/75 R15 tire is approximately 1.04 inches taller in diameter than the 205/75 R14 tire. This difference in tire size should be taken into account when considering tire replacement or when selecting tires for your vehicle, as it can affect speedometer accuracy and overall vehicle performance.
205 75R14 Vs 205 75R15: Top 10 Replacement Tire Sizes
Now let us look at some of the compatible tires that you can easily replace with both 205 75r14 and 205 75r15 tires. The replacement chart is shown below:
| 215/75R14 | 26.7 inches | 225/65R15 | 26.5 inches |
| 265/60R14 | 26.5 inches | 245/60R15 | 26.6 inches |
| 225/70R14 | 26.5 inches | 185/80R15 | 26.7 inches |
| 195/80R14 | 26.3 inches | 275/55R15 | 26.9 inches |
| 205/70R15 | 26.3 inches | 165/80R16 | 26.4 inches |
| 235/60R15 | 26.1 inches | 265/50R16 | 26.5 inches |
| 275/50R15 | 25.9 inches | 245/55R16 | 26.6 inches |
| 185/65R16 | 25.4 inches | 205/60R17 | 26.7 inches |
| 135/90R16 | 25.6 inches | 225/55R17 | 26.8 inches |
| 245/50R16 | 25.7 inches | 255/50R17 | 27.1 inches |
205 75R14 Vs 205 75R15 Tires: List of Vehicles
This section will show you which vehicles are the best to go with these two amazing sets of tires. This way you will be able to gain a clear idea about the compatible vehicles that you can easily use with these two tires.
There are many vehicles that suit both of these tires however you will show only a few of them. Here goes the table:
| 205 75R14 Tires Vehicle Names | Model Names | 205 75R14 Tires Vehicle Names | Model Names |
|---|---|---|---|
| Mazda | B-Series(1986-1993) | Buick | Riviera (1971-1985) |
| Mercury | Cougar (1967-1973) | Ford | F-100 (1980-1983) |
| Ford | Ranger (1998-2006) | Dodge | B150 (1981-1994) |
| Cadillac | DeVille (1985-1989) | Geo | Tracker(1989-1998) |
| Toyota | Classic (1996-1998) | Isuzu | Fargo (1980-2001) |
| Dodge | Caravan(1996-2000) | Lada | Niva (2020-2021) |
| GMC | Jimmy (1982-1991) | Nissan | Quest (1993-1998) |
Also Read: 205 75r15 vs 215 75r15 Tire Size – Core Comparison
Frequently Asked Questions
Some of the most frequently asked questions are discussed below:
Are Both Tires 205 75R14 and 205 75R15 Same?
Although both tires look exactly like the same but believe me, they are not. There are many visible differences that make both these tires quite unique. The 205 75R15 tires are only 1 inch higher than the 205 75R14 tires.
Although both tires look exactly like the same but believe me, they are not. There are many visible differences that make both these tires quite unique. The 205 75R15 tires are only 1 inch higher than the 205 75R14 tires.
How Much Tall Are 205 75R14 tires?
The 205 75R14 tires are approximately 153 mm or 6 inches tall on each side of the wheel. This enhances their look and makes them look sportier and aggressive.
Do Bigger tires Affect the Engine?
Bigger tires are generally heavier compared to smaller tires. Bigger tires make the engine work faster and harder to run. They use up more gas as well. So, It is quite easy to say that bigger tires affect the engine a lot.
Is It Hard to Stop Bigger Tires?
Bigger and heavier tires need a lot of power and force to operate and function fully. The engine has to produce a lot of energy to make bigger tires operate. Similarly, it takes a lot of effort to stop bigger tires as well.
If I Install Bigger Tires, Do I Need a New Set of Brakes as Well?
Not recommended but it is advisable to do so. You see bigger wheels and tires put a serious impact on the brakes. Thus, it becomes hard for your old brakes to cope with the new tires. So, you must consider changing your brakes.
Can I use 205/75r15 instead of 205/75r14?
No, you cannot use a 205/75R15 tire instead of a 205/75R14 tire on your vehicle. The numbers in the tire size represent specific measurements. The first number, “205,” indicates the width of the tire in millimeters.
The second number, “75,” represents the aspect ratio, which is the ratio of the tire’s sidewall height to its width. The “R” indicates that it’s a radial tire, and the final number, “14” or “15,” denotes the diameter of the wheel the tire is designed to fit.
Using a 205/75R15 tire on a wheel designed for a 205/75R14 tire would result in an incorrect fit. The tire would be too large in diameter for the wheel, causing a range of handling and safety issues.
It’s essential to use the correct tire size recommended by your vehicle’s manufacturer to ensure safe and proper performance.
How much wider is a 205/75r15 tire than a 205/75r14?
Step 1: Understand the Tire Size Notation
The first number in both tire sizes, “205,” represents the tire’s width in millimeters.
Step 2: Compare the Width Measurement
Note that both the 205/75R15 and 205/75R14 tires share the same width, which is 205 millimeters. This means there is no difference in width between the two tire sizes.
Step 3: Understanding the Difference
The difference between these tire sizes lies in the diameter of the wheel they are designed to fit. The “15” in 205/75R15 indicates a 15-inch wheel diameter, while the “14” in 205/75R14 represents a 14-inch wheel diameter.
Step 4: Conclusion
In summary, the width of a 205/75R15 tire is not wider than that of a 205/75R14 tire. Both have the same tire width of 205 millimeters. The difference is in the wheel size they are meant for, with the former fitting a 15-inch wheel and the latter fitting a 14-inch wheel. It’s crucial to choose the correct tire size based on your vehicle’s wheel specifications for proper fit and performance.
How much taller is a 205/75r15 tire than a 205/75r14?”
Step 1: Understand the Tire Size Notation
The first number in both tire sizes, “205,” represents the tire’s width in millimeters.
The second number, “75,” is the aspect ratio, indicating that the tire’s sidewall height is 75% of its width.
Step 2: Calculate the Sidewall Height
For both tire sizes, calculate the sidewall height by multiplying the tire width (205 mm) by the aspect ratio (75% or 0.75):For a 205/75R15 tire: 205 mm x 0.75 = 153.75 mm
For a 205/75R14 tire: 205 mm x 0.75 = 153.75 mm
Step 3: Calculate the Total Tire Height
To find the total tire height, add the sidewall height to the wheel’s diameter (rim size).For a 205/75R15 tire: 153.75 mm + 15 inches (15 inches = 381 mm) = 534.75 mm
For a 205/75R14 tire: 153.75 mm + 14 inches (14 inches = 355.6 mm) = 509.35 mm
Step 4: Find the Difference in Tire Height
Calculate the difference in height between the two tires:534.75 mm (205/75R15) – 509.35 mm (205/75R14) = 25.4 mm
Step 5: Conclusion
A 205/75R15 tire is approximately 25.4 mm (about 1 inch) taller than a 205/75R14 tire. This difference in tire height should be considered when selecting a tire size for your vehicle, as it can affect speedometer accuracy and overall vehicle performance.
Read More: 215 75R15 vs 215 70R15 Tire – Table of Comparison
Final Words
The article 205 75R14 Vs 205 75R15 Tires shows all the major differences that these two best tires in the market have between them. Both tires have some special advantages that make them really unique and worth buying.
Ultimately, the choice between these two tire sizes will depend on your individual driving preferences and the specific needs of your vehicle. It is always recommended to check the vehicle’s owner’s manual or consult with a professional mechanic before making a final decision.
