Tire Size Box

295/75R16 vs 295/80R16

295/80R16 compared with 295/75R16

+3.5% diameter, 0.0" width

295/80R16 is 34.58" 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 295/80R16 (dashed outline), drawn to scale

With 295/80R16 tires, when your speedometer says 60 mph you are really going

62.1 mph

295/80R16 is +1.16 inches (+3.5%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/75R16295/80R16Difference%
Overall diameter33.42"34.58"+1.16"+3.5%
Section width11.61"11.61"0.00"0.0%
Sidewall height8.71"9.29"+0.58"+6.7%
Circumference105.00"108.64"+3.65"+3.5%
Revolutions per mile603.5583.2−20.3−3.4%

Speedometer difference

If your vehicle came with 295/75R16 and you fit 295/80R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.7 mph+0.7 mph
30 mph31.0 mph+1.0 mph
40 mph41.4 mph+1.4 mph
50 mph51.7 mph+1.7 mph
60 mph62.1 mph+2.1 mph
65 mph67.3 mph+2.3 mph
70 mph72.4 mph+2.4 mph
75 mph77.6 mph+2.6 mph
80 mph82.8 mph+2.8 mph

Each size on its own

Questions

Which is bigger, 295/75R16 or 295/80R16?
295/80R16 is taller by 1.16 inches (34.58" vs 33.42"). 295/75R16 is the same width.
Can I replace 295/75R16 with 295/80R16?
It is not recommended without checking carefully. The diameter difference is +3.5%, 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 295/80R16 change my speedometer?
When your speedometer reads 60 mph with 295/80R16 fitted (calibrated for 295/75R16), your real speed is 62.1 mph. Your odometer will under-count miles by about 3.5%.
Will 295/80R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.58 inches of ground clearance at the axle.

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