LT215/80R15 Tire Size in Inches & Millimeters

Tire size “215/80R15” indicates your vehicle’s specifications based on tire width, aspect ratio, height, tire construction, diameter, radial and inches. These tire size numbers represent our tire sizes in both Metric (in millimeters) and Imperial (in inches) units of measurement to help find the correct tire size for your vehicle.

To convert tire size LT215/80R15 to inches, you must know what these numbers represent.

So let us know LT215/80R15 in simple words:

First number “215” indicates the tire’s width in millimeters.
Second number “80” refers to the aspect ratio, which is the height of the tire’s sidewall as a percentage of its width.
Third number “R15” refers to a tire that is designed to fit a 15-inch diameter rim.

Therefore, when converting the tire size LT215/80R15 to inches, it can be concluded that the width of the tire will be approximately 8.5 inches ( 215 mm= 8.5 in), and the sidewall height will be approximately 6.8 inches (80% of 8.5 inches = 6.8 inches).

How to convert LT215/80R15 into Inches (imperial)?

To convert tire size LT215/80R15 to inches (Imperial) –

1. Width conversion: To convert it to inches, you can use a conversion factor of approximately 25.4 millimeters per inch.

  • 215 millimeters/25.4 = approximately 8.5 inches
    So, the width of the tire is approximately 8.5 inches.

2. Aspect Ratio Calculation: To calculate sidewall height in inches, you can use the tire width (from Step 1) and the aspect ratio:

  • Sidewall Height = Width (in inches) * Aspect Ratio / 100
  • Sidewall Height = 8.5 inches * 80/100 = approximately 6.8 inches
    So, the tire sidewall height is approximately 6.8 inches.

3. Rim Diameter: The “R” in the tire size stands for “radial construction” and the last number “15” indicates the rim diameter in inches. In this case, it’s already in inches.
So, the converted tire size “LT215/80R15” in inches (imperial) is approximately:

  • Width: 8.5 inches
  • Sidewall Height: 6.8 inches
  • Rim Diameter: 15 inches

How to convert LT215/80R15 into Millimeters (metric)?

To convert the tire size LT215/80R15 into millimeters (metric) –

1. Width Conversion: The first number in the tire size, “215“, represents the tire’s width in millimeters. Since it’s already in millimeters, there’s no need for conversion.

  • Width: 215millimeters

2. Aspect Ratio Calculation: The second number “80” is the aspect ratio, representing the tire’s sidewall height as a percentage of its width. To calculate the sidewall height in millimeters, you can use the tire’s width (from step 1) and the aspect ratio:

  • Sidewall height = Width (in millimeters) * Aspect Ratio / 100
  • Sidewall height = 215 millimeters * 80 / 100 = 172 mm millimeters
    So, the tire’s sidewall height is approximately 172 mm millimeters.

3. Rim Diameter: The “R” in the tire size stands for “radial construction” and the last number, “15” indicates the rim diameter in inches. To convert this to millimeters, you can use the conversion factor of approximately 25.4 millimeters per inch.

  • Rim diameter = 15 inches * 25.4 millimeters per inch = 381 mm millimeters
    So, the rim diameter is approximately 381 mm millimeters.

So, the converted tire size “LT215/80R15” in millimeters (metric) is approximately:

  • Width: 215 mm
  • Sidewall Height: 172 mm
  • Rim Diameter: 381 mm

Alternate Tire Size of LT215/80R15 For replacement

Tire Size Overall Diameter Difference
295/55R15 27.8″ (705 mm) -2.8%
305/45R17 27.8″ (706 mm) -2.6%
325/50R15 27.8″ (707 mm) -2.5%
275/55R16 27.9″ (708 mm) -2.3%
275/50R17 27.9″ (708 mm) -2.3%
345/40R17 27.9″ (708 mm) -2.3%
215/70R16 27.9″ (708 mm) -2.3%
275/60R15 28″ (711 mm) -1.9%
235/70R15 28″ (711 mm) -1.9%
255/55R17 28″ (712 mm) -1.8%
255/60R16 28″ (712 mm) -1.8%
155/90R17 28″ (712 mm) -1.8%
215/65R17 28″ (712 mm) -1.8%
235/65R16 28″ (712 mm) -1.8%
255/65R15 28.1″ (713 mm) -1.7%
235/60R17 28.1″ (714 mm) -1.5%
205/75R16 28.1″ (714 mm) -1.5%
315/45R17 28.2″ (716 mm) -1.2%
195/80R16 28.3″ (718 mm) -1%
225/75R15 28.3″ (719 mm) -0.8%
225/70R16 28.4″ (722 mm) -0.4%
225/65R17 28.5″ (724 mm) -0.1%
265/60R16 28.5″ (724 mm) -0.1%
265/55R17 28.5″ (724 mm) -0.1%
245/70R15 28.5″ (725 mm) 0%
245/60R17 28.6″ (726 mm) 0.1%
215/75R16 28.7″ (728 mm) 0.4%
165/90R17 28.7″ (730 mm) 0.7%
235/75R15 28.9″ (733 mm) 1.1%
205R16 28.9″ (734 mm) 1.2%
215/70R17 28.9″ (734 mm) 1.2%
275/55R17 28.9″ (734 mm) 1.2%
205/80R16 28.9″ (734 mm) 1.2%
295/60R15 28.9″ (735 mm) 1.4%
275/60R16 29″ (736 mm) 1.5%
235/70R16 29″ (736 mm) 1.5%
235/65R17 29.1″ (738 mm) 1.8%
255/65R16 29.1″ (738 mm) 1.8%
255/60R17 29.1″ (738 mm) 1.8%
255/70R15 29.1″ (739 mm) 1.9%
225/80R15 29.2″ (741 mm) 2.2%
225/75R16 29.3″ (744 mm) 2.6%

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