a tire has an aspect ratio of 70

If a tire has an aspect ratio of 70, it means the tires height is 70% of its width. 40: This two-digit number is the aspect ratio, or profile, of the sidewall. Tire Diameter = Wheel Diameter + 2 Section Height. Section Width: In this case it is 185. In a tire with an aspect ratio of 85, for Some manufacturers will insert a Z in the middle of the tire size description (right after the aspect ratio) when the tire is rated at W or Y. And if a tire is rated in excess of Breaking that out, the 'P' stands for passenger tire and this may also read LT (for light truck) on some tires. The Aspect Ratio is stamped onto the exposed sidewall of any tire alongside a bunch of numbers and letters that tell you everything you need to know about your tire. The aspect ratio Aspect Ratio is a critical component of the tyre size. Once you have the standing height of the old tire, you must then match it on the new tire: Multiply the width by the aspect ratio expressed as a decimal (225 x 0.55 = 123.75). A tire aspect ratio is a number that denotes how high your tire profile is, i.e.

(e.g. What Length to Width Ratio Is Ideal. Aspect Ratio. Most of the bias ply tires offer an aspect ratio of around 80 or 90 percent. Metric tire sizes are a bit demanding when it comes to understanding what size they really are. Tire Size Chart Width of the tire. If replacing a FR70-14, you would look up the appropriate 70-series size, the 215/70R14. In our example, the width is 205 millimeters. Also known as series and profile. Both arent in the commonly used imperial standard of inches. tire width: length: inch (in) and millimeter (mm) The tires section width , tread width or overall width. This gear ratio and tire diameter chart is meant to give you an approximation of ideal RPMs at highway speed (65 mph) for three situations: fuel economy, every day driving and increased Metric to Standard Tire Conversion Chart for 20 inch Wheels; Metric Standard; 325/50/20: 33.0"x 13.2" Shop Jeep Tires. Convert the aspect height to inches (123.75 / 25.4 = 4.87). The aspect ratio is the percentage that compares the tires section height with the tires section width. In this case you will have a set of number in this manner: 100/90 19. Just by looking at the tire youll know that its 225 mm wide, with an aspect ratio of 45, with a rim diameter of 19 inches.It also has a The smaller the number the lower profile of the tire. In short, Metric measurement takes either the Width/aspect ratio-rim size format or Width/aspect ratio-speed rating-Tire Construction-Rim size format.

To determine the aspect ratio of the same P255/50VR16 The two-digit number after the slash mark in a tire size is the aspect ratio. But many of us wonder how low a tires aspect ratio can go before we hit the point of diminishing return. Then take the inches and multiply by two and add the rim size. A code of U means this tire will fit on a rim that is between 2.75 and 3.50 inches wide. 295/75R16 tires have a section width of 295 millimeters, a 75% aspect ratio, and fit 16-inch rims. Aspect Ratio: A nominal number, which represents the section height, divided by the section width and expressed as a percentage. Finally, like the first set of numbers, that R15 means it is a radial tire and has a 15" diameter. The aspect ratio is important to You can also check out our tire size calculator, wheel offset calculator, tire height calculator and tire comparison calculator. TreadwearTractionTemperature This percentage represents the ratio of sidewalls section height to the tires section width. Here's a formula you can use to calculate your vehicle's tire diameter: (CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER For Example: 235/45ZR-1 (235 x 0.45 x 2 25.4) + 17 = 25.327" And here's a formula that you can use to calculate your vehicle's rear axle gear ratio: Following the three digits identifying the tire's Section Width in millimeters is a two-digit number that identifies the tire's profile or aspect ratio.

Lets say that your tires resemble the one pictured here. Tire Chart Conversion. 25 30 35 40 45 50 55 60 65 70 75 80 85 90. In the example above, this means the Section Height: The distance from wheel seat to outer tread surface of unloaded tire. [Tread width * aspect ratio * 2 (two sidewalls, top and bottom)] / 25.4 (mm As an example, if your tire size is P225/65R17, the width of the tire would be 225 millimeters. Tire Diameter = 2*(Tire Width/25.4)*(Aspect Ratio/100)-(Wheel Size*-1) Tire Diameter Definition The Tire Diameter Calculator will instantly calculate the diameter of a tire if you enter in the tire width (in millimeters), the tire aspect ratio (also known This tires sidewall height is 40 percent of the tires width, which equates to 98mm, or 3.86 inches. The sidewall height can be calculated by multiplying the ratio (70 or 0.70) The number that sits next to the width is the aspect ratio of the sidewall. For e.g., it compares the tire circumference and the overall tire diameter of one or more additional tires with the base tire and gives an information about the tire upsizing/downsizing: does the new tire exceeds the recommended upper or lower limit for the tire upsizing/downsizing. Get a better idea on wheel fitment based on the tire and rim combination that you have. Tire aspect ratio calculator. Add the inside diameter of the tire (16 + 9.74 = 25.74). * When replacing Alpha Numeric tires with Euro-metric or P-metric tires, look for the Euro-metric or P-metric size listed in the equivalent aspect ratio. Alternate. Manufacturers print aspect ratios on the tires for you along with other important numbers, including the width and rim diameter of the wheel. The aspect ratio is the 2- or 3-digit number immediately following the forward slash. Using the same example above, 65 is the aspect ratio of the tire while 17 is the tire diameter (in inches). For a P185/75 R17 82S 255 (Tire Width): The tire width is 255 millimeters from sidewall to sidewall (just over ten inches). For example, tire load index 105 means the vehicle can support 2039 pounds at RPM. The Next Letter: The following letter denotes the type of tire construction. Tire size comparison calculator instantly shows the difference between the tires and displays it in the table. Once that has been completed, please enter the additional tire size details: Width > Aspect Ratio > Diameter. The second pair of numbers (225/45R17) is the tire's aspect ratio or profile. The answer will be the height of one sidewall. Buy Michelin Primacy MXV4 All Season Radial Car Tire for Luxury Performance Touring, 215/55R17 94V: Performance - Amazon.com FREE DELIVERY possible on eligible purchases Tire Aspect Ratio: 55.0: 55.0: 55.0: 65.0: Uniform Tire Quality Grade Rating: 500AA: 500AA: 820AB: 820AB: Compare with similar items. Use our gear ratio calculator to calculate your new gear ratio and rpm. Get performance, noise and comfort information, then find a store. Those numbers are only good with the other two. Use our tire size comparison calculator to find all your tire comparison needs Tire Diameter Calculator: Tire Width (mm) Aspect Ratio (1-100) Wheel Diameter (in) Tire Diameter (in) Enter the tire width in millimeters, the aspect ratio, the wheel diameter in inches, and Click on Calculate 78:1, or wide-screen) 1 Cup= 8 Ounces 5) The ridiculously high kill ratio of the F tire diameter: length: inch (in) and millimeter (mm) The diameter or radius of the tire. The aspect ratio is a percentage of the section width.

The width is the first number on the tire 255, 265, 285 etc. Below is a quick reference chart listing each tire size and the acceptable rim widths for that size. In this way, a tire of 110 mm will be 4.330 inches in width while a tire of 120mm will be 4.724 inches. By entering tire width, the aspect ratio, and wheel diameter this calculator spits out the height of your tire. Tire size calculator. What size is 285 75R17 in inches? The tire width of a tire is the distance from the outer edge of one side to the outer edge of the other. "/> Sidewall Aspect Ratio. Here the number is 55, which means the tire height is For example, on a 2015 Jeep Wrangler Sport, the tire may read P225/75R16. Tire Aspect Ratio Calculator. I want to see how much difference there would be if I installed a different size, Example: 245/45 ZR17.My data inputs would look like this:. 285/75R17 tires have a diameter of 33.8, a section width of 11.2, and a wheel diameter of 17. Aspect Ratio: In this case it is .60. For example, a 50-series tire has an aspect ratio of 50%.

Tire Speed Rating Chart (Old Style) Motorcycle Tire Speed Ratings Max. These are the tire width and the aspect ratio. Street Tire Size Designation Aspect Ratio = Aspect Ratio = Section Height Section Width 130/ 90 - 16 67 TIRE CONVERSION CHARTS Tire Rating (mph) (km/h) FType 50 80 JType 62 100 LType 75 120 Off Road Tire Application Chart Tire Use Front PSI Rear PSI Motocross Hard Terrain 10-12 10-12 Motocross Intermediate Terrain 12-14 12-14 Aspect ratio, also known as the tire profile measurement, indicates The dimensions computed by our calculator use the following equations: Section Height = Aspect Ratio Tire Width.

45 (Aspect Ratio): The tires sidewall is 45% of the tires width, which means the sidewall is about 114 millimeters or just over 4 inches. Its the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width. For example: the section height of G70-14 is 70% of the section width. 235/35R19. A 33 is a 33 no matter what, but a 265/70/16 The next two numbers after the slash mark refer to the aspect ratio or the ratio of the tire cross-sections height to the width. If your dimension is in inches, multiply by 25.4 . A 170/80 means Please note that the values in this chart are the RIM width not the Tire width. You have four tires, after all. Generally, a slash is used to separates the aspect ratio from the width. In the example below, the aspect ratio of the tire is 70 percent, so the section height of

So if you have a 70-series tire, that means the sidewall height is 70 percent of the tire's overall width. 17 is the Wheel Diameter in inches. Standard format is much more common on ATV tires than metric. Aspect ratio is simply identified as a percentage of the section height divided by the section width. Tire Construction : R How to Read Tire Size Chart for 13" Wheels. Aspect ratios are delivered in percentages. Metric system example. METRIC TIRE TO DIAMETER (INCHES) CALCULATOR For example a LT265/75R16 would be around 31.6 inches tall and 10 inches wide. Find and download Tire Aspect Ratio Conversion Chart image, wallpaper and background for your Iphone, Android or PC Desktop.Realtec have about 37 image published on this page. The tire Width Code is just a letter to substitute for the width of the rim. A code of U means this tire will By entering tire width, the aspect ratio, and wheel diameter this calculator spits out the height of your tire. Street Tire Size Designations; Metric Designation; Inch Designation; To Michelins way of thinking, 25% of a tires section width is going to yield an 83 millimeter sidewall. The two numbers after the slash show the aspect ratio of the tire. The second number in a metric tire size is called the aspect ratio and means that the sidewall height is 60% of the section width. Treadwear Traction Temperature . Its value represents the ratio of the difference between OT and OE tyre diameter and the difference between OE For Tire Height Calculator. At the bottom of the table you can see the final recommendation. You can calculate a PWR in four simple steps: 1. Tire Ratings Charts & Reviews. take the rear tire width, 120mm in your case, multiply .80, you get 96mm, that is the sidewall height. (The chart does not show all sizes, but gives a good example) Choosing a wheel near the middle of the range will give a balance between ride quality and handling. The chart below should give

An aspect ratio of 55 indicates that there is one 459 mm (117.5 inches) segment of width for every 100 mm or 3-inch piece of height, which equates to approximately 1:2, as That would be the 60 in our example. It might say it is a 35X12.50-20, but the actual diameter noted in the specs is 34.6". Example: Tire Size Aspect Ratio 11R22.5 90 275/80R22.5 80 7. This Shinko tire reading means it is 100 mm wide, with a 90% aspect ratio and can be mounted on to a rim of 19 inches. The width is the first number on the tire 255, 265, 285 etc. It looks like this: The sidewall Tire Width. Videos. That 75 is the tire's aspect ratio and simply means the tire's height is The three-digit number following the tire class is the tire width. For example, if the aspect ratio is 90, that means that your tires cross-sectional height is 90% of The Aspect Ratio equals the height divided by the width times 100. For example, when replacing a FR78-14, you would look up the appropriate 75-series size, the 205/75R14. 5. It is written in the form of an alphanumeric code on the side of the tyre, along with other measurements.