285/60R15 Tire Size in Inches

28.5" tall, 11.2" wide, 6.7" sidewall

Diameter28.5"723 mm
Overall diameter28.5"723 mm
Section width11.2"285 mm
Sidewall height6.7"171 mm
Circumference89.4"2271 mm
Revolutions per mile709440 per km
Wheel diameter15"≈ 28.5x11.2R15 in inches

A 285/60R15 tire is 28.5 inches (723 mm) tall and 11.2 inches wide. The sidewall is 60% of the width, 6.7 inches, on a 15-inch wheel, and the tire turns about 709 times per mile.

In flotation terms that is about 28.5x11.2R15. People often call it a 28-inch tire.

The size most often compared with it is 265/65R15, which is 0.1" taller (+0.3%). At an indicated 60 mph you would be doing 60.2 mph on it.

285/60R15
265/65R15
Diameter difference+0.35%diameter 28.46" → 28.56"
CurrentNew
CurrentNewDifference

Speedometer

ShowsActual speed

Gear ratio to match

–enter your current axle ratio

Sizes near 285/60R15

Same 15" wheel, within 20 mm of width and 10 points of aspect ratio.

SizeDiameterWidthSidewallvs 285/60R15
265/65R1528.6"10.4"6.8"+0.3%
295/60R1528.9"11.6"7.0"+1.7%
275/60R1528.0"10.8"6.5"−1.7%
295/55R1527.8"11.6"6.4"−2.4%
265/70R1529.6"10.4"7.3"+4.0%
305/50R1527.0"12.0"6.0"−5.1%
275/55R1526.9"10.8"6.0"−5.5%
295/65R1530.1"11.6"7.5"+5.7%
275/70R1530.2"10.8"7.6"+5.9%
295/50R1526.6"11.6"5.8"−6.5%

Same height on a different wheel

Sizes within 2% of 28.5" on 17" or 16" wheels.

SizeDiameterWidthSidewallvs 285/60R15
325/45R1728.5"12.8"5.8"+0.2%
245/65R1628.5"9.6"6.3"+0.3%
245/60R1728.6"9.6"5.8"+0.4%
275/55R1728.9"10.8"6.0"+1.6%
205/80R1628.9"8.1"6.5"+1.6%
275/60R1629.0"10.8"6.5"+1.9%

Speedometer with a different size

Actual speed when the speedometer is calibrated for 285/60R15.

Speedometer showson 265/65R15on 295/60R15on 275/60R15
30 mph30.1 mph30.5 mph29.5 mph
45 mph45.2 mph45.7 mph44.3 mph
60 mph60.2 mph61.0 mph59.0 mph
70 mph70.2 mph71.2 mph68.8 mph

285/60R15 FAQ

How tall is a 285/60R15 tire?

28.5 inches (723 mm). The sidewall is 6.7 inches.

How wide is a 285/60R15 tire?

11.2 inches (285 mm) section width, measured sidewall to sidewall.

What is 285/60R15 in flotation size?

About 28.5x11.2R15.

Can I use 265/65R15 instead of 285/60R15?

265/65R15 is +0.3% in diameter, within the common 3% guideline. It is 0.8" narrower.