There are two ways that tire manufacturers display tire size, inches and metric. How to read tire size in inches is very straight forward. Example A : 33X12.50R15 The first number is your overall diameter of the tire.
Once you find the series of numbers on your tire’s sidewall, use the diagram above and the list below to find the meaning of each number. Metric, or tire type, defines the proper use of the tire.
The tire size branded on the sidewall provides a significant amount of information about the tire's intended purpose, dimensions, load capacity and high temperature/high speed durability. Our primary example will be based on variations of the 225/50R16 size, although other sizes will appear...
What do the numbers mean on the sidewall of your tire? At first glance, you look at your tire sidewall and think, “’Do I need a super secret decoder ring to read this?”
Automobile tires are described by an alphanumeric tire code (in American English and Canadian English) or tyre code (in British English, Australian English and others), which is generally molded (or moulded) into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed.
This is the one tire calculator that I've used for years because it gives me only the information I really needed to decide on the right size for a customer – the difference in overall diameter expressed as a percentage and the difference between the speedometer and the actual speed at 60mph.
A useful chart for determining the tire size you need for your bicycle.
Using our Tire Size Calculator, you can get exact measurements for your current tire size. If you are considering replacing your tires with a different sized tire, you can conduct a size comparison, which can help you determine what alternate tire sizes will work on your vehicle.
1010tires.com Tire Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference.
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