315/30R20 In Inches

What size tire is 315/30R20 in Inches?

The 315/30R20 equivalent to 27.4x12.4R20 in inches, as follow:

  • 27.4 inches (697mm) stand for the tire diameter, also referred to as the tire height
  • 12.4 inches (315mm) is the tire width, this may also know as the section width
  • 20 inches (508mm) represent the rim diameter or called the wheel diameter that can be mounted on.
InchesMetric
Tire Diameter27.4"697 mm
Tread Width12.4"315 mm
Rim Diameter20"508 mm
Sidewall Height3.7"95 mm
Circumference86.4"2195 mm
Revolutions734 revs/mile456 revs/km
tire diameter
12.4"
27.4"
Tire Side
Tire Circumference
86.4"
20"
3.7"
734 Revs/Mile

What is a 315/30R20 tire width?

The 315/30R20 has a width of 12.4 inches or 315 mm wide. This is the measurement of the tire at its thickest point, the distance between the inner sidewall’s widest point and the outer sidewall’s widest point. This physical width of the tire can change if the tire is mounted on a wheel slightly wider or narrower than the size indicated by the rim width.

What is 315/30R20 tire diameter?

The 315/30R20 has an overall diameter of 27.5 inches or 698 mm tall (Measurement of a tire’s outside diameter through its exact center when inflated with no load.)

What size rim do I need for 315/30R20?

The size rim of a 315/30R20 tire is 20 inches or 508 mm tall. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How tall is a 315/30R20 tire sidewall’s height?

The sidewall height of a 315/30R20 is 3.7 inches or 95 mm tall. It’s measured from the rim to the outer edge of the tire.

What about 315/30R20 tire circumference?

315/30R20 tire has a circumference of 86.4 inches or 2195 mm

How many revolutions for 315/30R20 per mile & kilometer?

The 315/30R20 performs 456 revolutions per kilometer or 734 revolutions per mile. Revolutions per mile indicate the number of times a tire revolves while it covers the distance of one mile/kilometer

What’s wider or narrow than 315/30R20 is acceptable?

You can replace the 315/30R20 tires that are within ±3% of the overall tire diameter. In this case, it’s between 26.7 and 28.3 inches (677mm to 719 mm). Check our tire size chart here or the tire size calculator tool here to find your size.


Tire Size Chart for 20" Wheels:

25″ Tire Diameter

26″ Tire Diameter

27″ Tire Diameter


28″ Tire Diameter

29″ Tire Diameter

30″ Tire Diameter


31″ Tire Diameter

32″ Tire Diameter

33″ Tire Diameter


34″ Tire Diameter

35″ Tire Diameter

36″ Tire Diameter

37″ Tire Diameter

39″ Tire Diameter

*Disclaimer: The information provided on the tire size is for general informational purposes only. We recommend that you consult a certified tire specialist or National Highway Traffic Safety Administration (NHTSA) sets specific guidelines for tires used on vehicles.


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Jamie Hicks

Sullivan Kane

Tire Technician at TireSizesCalculator

Sullivan is a Tire Technician specializing in tire repair at TireSizesCalculator. With over 6 years of experience in the industry, Sullivan has become an expert in tire repair, maintenance & installation.


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