275/70R16 Tire Size in Inches

31.2" tall, 10.8" wide, 7.6" sidewall

Diameter31.2"791 mm
Overall diameter31.2"791 mm
Section width10.8"275 mm
Sidewall height7.6"193 mm
Circumference97.9"2486 mm
Revolutions per mile647402 per km
Wheel diameter16"≈ 31.2x10.8R16 in inches

A 275/70R16 tire is 31.2 inches (791 mm) tall and 10.8 inches wide. The sidewall is 70% of the width, 7.6 inches, on a 16-inch wheel, and the tire turns about 647 times per mile.

In flotation terms that is about 31.2x10.8R16. People often call it a 31-inch tire.

The size most often compared with it is 265/75R16, which is 0.5" taller (+1.6%). At an indicated 60 mph you would be doing 60.9 mph on it.

275/70R16
265/75R16
Diameter difference+1.58%diameter 31.16" → 31.65"
CurrentNew
CurrentNewDifference

Speedometer

ShowsActual speed

Gear ratio to match

–enter your current axle ratio

Sizes near 275/70R16

Same 16" wheel, within 20 mm of width and 10 points of aspect ratio.

SizeDiameterWidthSidewallvs 275/70R16
255/75R1631.1"10.0"7.5"−0.3%
265/75R1631.6"10.4"7.8"+1.6%compare
265/70R1630.6"10.4"7.3"−1.8%compare
285/70R1631.7"11.2"7.9"+1.8%
285/65R1630.6"11.2"7.3"−1.8%
255/80R1632.1"10.0"8.0"+2.9%
275/65R1630.1"10.8"7.0"−3.5%
275/75R1632.2"10.8"8.1"+3.5%
255/70R1630.1"10.0"7.0"−3.5%
295/70R1632.3"11.6"8.1"+3.5%

Same height on a different wheel

Sizes within 2% of 31.2" on 17" or 18" or 15" wheels.

SizeDiameterWidthSidewallvs 275/70R16
225/80R1731.2"8.9"7.1"+0.1%
305/55R1831.2"12.0"6.6"+0.2%
275/65R1731.1"10.8"7.0"−0.3%
275/75R1531.2"10.8"8.1"+0.3%
255/70R1731.1"10.0"7.0"−0.3%
295/70R1531.3"11.6"8.1"+0.3%

Speedometer with a different size

Actual speed when the speedometer is calibrated for 275/70R16.

Speedometer showson 265/75R16on 265/70R16on 285/75R16
30 mph30.5 mph29.5 mph31.6 mph
45 mph45.7 mph44.2 mph47.4 mph
60 mph60.9 mph58.9 mph63.2 mph
70 mph71.1 mph68.8 mph73.8 mph

275/70R16 comparisons

275/70R16 FAQ

How tall is a 275/70R16 tire?

31.2 inches (791 mm). The sidewall is 7.6 inches.

How wide is a 275/70R16 tire?

10.8 inches (275 mm) section width, measured sidewall to sidewall.

What is 275/70R16 in flotation size?

About 31.2x10.8R16.

Can I use 265/75R16 instead of 275/70R16?

265/75R16 is +1.6% in diameter, within the common 3% guideline. It is 0.4" narrower.