Tire Size Box

275/65R17 vs 295/65R17

295/65R17 compared with 275/65R17

+3.3% diameter, +0.8" width

295/65R17 is 32.10" tall vs 31.07". More than the 3% rule of thumb, so check carefully before switching.

31.1"17" rim7.0"10.8" wide
275/65R17 (solid) compared with 295/65R17 (dashed outline), drawn to scale

With 295/65R17 tires, when your speedometer says 60 mph you are really going

62.0 mph

295/65R17 is +1.02 inches (+3.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

275/65R17295/65R17Difference%
Overall diameter31.07"32.10"+1.02"+3.3%
Section width10.83"11.61"+0.79"+7.3%
Sidewall height7.04"7.55"+0.51"+7.3%
Circumference97.62"100.84"+3.22"+3.3%
Revolutions per mile649.0628.3−20.7−3.2%

Speedometer difference

If your vehicle came with 275/65R17 and you fit 295/65R17, 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 mph41.3 mph+1.3 mph
50 mph51.6 mph+1.6 mph
60 mph62.0 mph+2.0 mph
65 mph67.1 mph+2.1 mph
70 mph72.3 mph+2.3 mph
75 mph77.5 mph+2.5 mph
80 mph82.6 mph+2.6 mph

Each size on its own

Questions

Which is bigger, 275/65R17 or 295/65R17?
295/65R17 is taller by 1.02 inches (32.10" vs 31.07"). 295/65R17 is wider by 0.79 inches.
Can I replace 275/65R17 with 295/65R17?
It is not recommended without checking carefully. The diameter difference is +3.3%, 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 295/65R17 change my speedometer?
When your speedometer reads 60 mph with 295/65R17 fitted (calibrated for 275/65R17), your real speed is 62.0 mph. Your odometer will under-count miles by about 3.3%.
Will 295/65R17 lift my vehicle?
Ride height changes by half the diameter difference: +0.51 inches of ground clearance at the axle.

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