Tire Size Box

295/75R16 vs 295/85R16

295/85R16 compared with 295/75R16

+7.0% diameter, 0.0" width

295/85R16 is 35.74" tall vs 33.42". More than the 3% rule of thumb, so check carefully before switching.

33.4"16" rim8.7"11.6" wide
295/75R16 (solid) compared with 295/85R16 (dashed outline), drawn to scale

With 295/85R16 tires, when your speedometer says 60 mph you are really going

64.2 mph

295/85R16 is +2.32 inches (+7.0%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/75R16295/85R16Difference%
Overall diameter33.42"35.74"+2.32"+7.0%
Section width11.61"11.61"0.00"0.0%
Sidewall height8.71"9.87"+1.16"+13.3%
Circumference105.00"112.29"+7.30"+7.0%
Revolutions per mile603.5564.2−39.2−6.5%

Speedometer difference

If your vehicle came with 295/75R16 and you fit 295/85R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.4 mph+1.4 mph
30 mph32.1 mph+2.1 mph
40 mph42.8 mph+2.8 mph
50 mph53.5 mph+3.5 mph
60 mph64.2 mph+4.2 mph
65 mph69.5 mph+4.5 mph
70 mph74.9 mph+4.9 mph
75 mph80.2 mph+5.2 mph
80 mph85.6 mph+5.6 mph

Each size on its own

Questions

Which is bigger, 295/75R16 or 295/85R16?
295/85R16 is taller by 2.32 inches (35.74" vs 33.42"). 295/75R16 is the same width.
Can I replace 295/75R16 with 295/85R16?
It is not recommended without checking carefully. The diameter difference is +7.0%, more than the 3% most shops and makers allow. It will throw off the speedometer and may affect ABS, stability control and clearance.
How much will 295/85R16 change my speedometer?
When your speedometer reads 60 mph with 295/85R16 fitted (calibrated for 295/75R16), your real speed is 64.2 mph. Your odometer will under-count miles by about 7.0%.
Will 295/85R16 lift my vehicle?
Ride height changes by half the diameter difference: +1.16 inches of ground clearance at the axle.

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