Vintage Tire Size Conversion Chart. Vintage Tire Size Conversion Chart Use the following chart to figure out the closest modern tire size to your car's original tires. Keep in mind these are close approximations and may not be exact replacements. Here are some of the common metric measurement of dirt bike tires into inches: Metric: Inches: 120/90×19: 5.10×19: 110/90×19: 4.50×19: 100/90×19: 4.10×19: 140/80×18: 5.60×18: 130/80×18: 5.30×18: 120/100×18: 5.10×18 : 110/100×18: 4.50×18: How to Choose The Dirt Bike Tire Size. Locate this measurement on the tire size chart included in the Resources section, and the diameter that is displayed next to the measurement size. It allows the user to compare two different tires. Jen; March 23, 2017 ; Tweet; Metric to Standard Conversion. Learn about a Tyre Size Designation. Keep in mind these are close approximations and may not be exact replacements. That isn't the case, of course. Convert P-Metric tire size to Tire Diameter in inches. Tire Size Calculator. (mm) Tire Size. The tool can be useful for finding out whether or not an alternative tire size is compatible with your vehicle. Example: The size of the tire … Use our Tire Size Calculator to find the suggested tire size specs for your vehicle. The 2nd number is used to calculate the sidewall height or "aspect ratio" , by percentage. 305/50R20 tire conversion. Find the chart that gives the actual measurement for an F78-14 tire. Try searching by your vehicle's tire size instead. The 78-series alpha numeric tires should be replaced with today's 80-, or 75-series tires. Reference. If your wheel size isn't listed in the drop down, you can just enter the number into the Dia. Classic car websites often have a chart showing the different tire sizes and their measurements (see Resources). If you run bias tires during field operations you can simply change to radial tires or to the “IF” or “VF” to reduce ground pressure as well as increase traction. Tire Size Conversion Chart - Metric to Inches - by Rim/Wheel Diameter displays the metric tire size designations and for each metric tire size designation shows the equivalent - exact calculated inch tire size.. Convert just about anything to anything else. Tire Size Conversion Chart - Inches to Metric - by Wheel/Rim Diameter displays the inch tire size designations and for each inch tire designation shows the equivalent - exact calculated metric tire size. 15-inch Wheel Conversion Chart . (mm) field. The bias-ply measurement is printed on the original tire or in the original specifications for the vehicle. Once you are at your vehicle, write down the following highlighted numbers located on your sidewall in the order shown below. Issues started appearing when rims having different widths were introduced on the market, because these rims required tires with a bigger baloon, that subsequently influenced their size. Shop online at Canadian Tire and pick up at any of 500+ locations A ISO tire size of 28-622 is how we would refer to a 700 x 28C tire has a tire width of 28 mm and a rim diameter of 622 mm. Finding your tire size is simple. Locate an online tire size conversion chart. Remove This Item; Compare . Supports tire sizes in metric and inches. Related articles: Find out what is Plus Sizing. To convert alpha numeric tires to P-metric sized tires, it is important to identify the original tire's aspect ratio. Pros and cons of the Plus sizing. Initially, the tire size simply reflected the equivalent of its outer diameter, expressed in inches or millimeters (e.g. Enter the metric size (i.e. They are explained in a section below. The calculator will instantly convert the data into the required standard and display it on the screen with the tire size visualizer. Vintage Tire Size Conversion Chart Pre-1964 1965-72 80 series metric Alpha Numeric 78 series P-Metric 75 series Radial P-Metric 70 series Radial 5.90-13 600-13 165-13 A78-13 P165/75R13 P175/70R13 6.40-13 … Identify the bias-ply tire's diameter. Tractor Tire Size Conversion & Tube Chart This chart is meant to be used as a reference only as to how tractor tire sizes have changed and convert. Before purchasing any tires you should compare outside diameters and the tread footprint to get a better idea on how close a match they are. What size tires do you need? Step 1. For example, when replacing a FR78-14, you would look up the appropriate 75-series size, the 205/75R14. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed. Welcome to OnlineConversion.com. Check out the Charts: Tyre size chart, Tyre conversion chart, Tyre speed rating, Load index . You'll find that we have most wheel sizes listed so that you can be confident when ordering your spare tire cover. Tires in a 205/75-15 size will be easier to find as radial tires. Clear All. Some charts show comparable sizes, but it is better to get the actual measurements first. The Metric Tire Conversion Calculator converts metric tire sizes (ie 285/75R16) to standard tire sizes (ie 31x10.50R15) and standard tires back to metric. If this tire were a P225/ 70 R16 size, our calculation would confirm that the size would result in a section height of … Note, it assumes the speedometer is calibrated to the original tire. Perform tire size conversion from the inch tire size to the metric tire size and the other way around with the tire size converter. The sizes in the above chart do not go as large as modern sizes (180/55 or 240/40) because new bikes are not made to use the Inch Format.. From standard bias ply sizes such as 6.70-15 to Alpha Numeric sizes like F70-15, all the way up to modern P-Metric sizing, such as 205/75R15. Find your tire size instead. Fortunately, you can do it in no time flat with the help of our tire size conversion calculator. By converting the 225mm to inches (225 / 25.4 = 8.86") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of 4.43". Select the tire sizes to compare to your stock size and click 'Compare Selected Sizes'. Tire sizes can be a bit confusing, as the size designations changed a lot over the years. Step 2. Compare Products. Wheel Size . 285/75 R17) / R. Calculate. Tire size calculator compares diameter, width, circumference and speedometer differences for any two tire sizes. All you need to do is to fill in the form with your tire dimensions, click on the convert button, and you're done. F78-15 tires were of bias-ply construction. Diameter (MM) Estimated Wheel Circumference/Computer Setting. Convert 305/50R20 tire size to inches and compare prices on available tires from the top brands online. From overall diameter to revolutions per mile, you’ll also be able to compare tire sizes and learn the proper height, width, and fit when converting tire sizes. Converting bias-ply to P-metric tire sizing is not difficult. The listed diameters are from calculations based on the tire size. Click on this easy to read tire size chart so that you can get the correct size tire cover or RV tire shade. * 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. Use this tool to compare two tire sizes. Follow Us. Before purchasing any tires you should compare outside diameters and the tread footprint to get a better idea on how close a match they are. Converting tire sizes to reduce compaction can help by reducing ground pressure from your equipment. Radial and bias ply tires should not be mixed on the same vehicle. Millimeter (MM) Centimeter (CM) Inches to MM Converter. If a wider tire is desired, 215/70R15 or 235/60R15 will provide the same diameter, but wider wheels will be required. Use the following chart to figure out the closest modern tire size to your car's original tires. Tire Size Comparison Calculator. Diameter. Can't find your version/option? If replacing a FR70-14, you would look up the appropriate 70-series size, the 215/70R14. Immediately available tire sizes that are with in plus or minus 3% variance will be displayed. If you are confused about the metric system of the tire size, you can convert them into inches. Tire Size Conversion Chart Shop by Size 1949 to 1964 1965 to 1970 1970 to 1980 1960 to Present 1980 to Present NUMERIC ALPHA NUMERIC* EURO-METRIC P-METRIC EURO-METRIC or P-METRIC "90-" to "80"-series 78- to 50-series "82"-series 80-, 75-series 70-series 65-series 60 … In addition, it provides actual speed versus speedometer readings if the tire sizes are different. Tire Size and Comparison Calculator Calculate tire diameter from code and compare speedometer differences for tire sizes. Tire sizes can be confusing to the consumer since the information molded into the side of the tire seems to be a cryptic string of numbers that only a tire technician can decipher. Use the below chart to find the closest modern tire size to your car's original tires. This calculator provides tire conversion details in both metric and standard units for a given tire. You have no items to compare. The first number is the tire width in millimeters. 26”, 27”, 700mm). 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