Tire Size Box

275/60R17 vs 295/60R17

295/60R17 compared with 275/60R17

+3.2% diameter, +0.8" width

295/60R17 is 30.94" tall vs 29.99". More than the 3% rule of thumb, so check carefully before switching.

30.0"17" rim6.5"10.8" wide
275/60R17 (solid) compared with 295/60R17 (dashed outline), drawn to scale

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

61.9 mph

295/60R17 is +0.94 inches (+3.2%) in overall diameter. That is more than the 3% most shops and makers recommend.

275/60R17295/60R17Difference%
Overall diameter29.99"30.94"+0.94"+3.2%
Section width10.83"11.61"+0.79"+7.3%
Sidewall height6.50"6.97"+0.47"+7.3%
Circumference94.22"97.19"+2.97"+3.2%
Revolutions per mile672.4651.9−20.5−3.1%

Speedometer difference

If your vehicle came with 275/60R17 and you fit 295/60R17, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.6 mph+0.6 mph
30 mph30.9 mph+0.9 mph
40 mph41.3 mph+1.3 mph
50 mph51.6 mph+1.6 mph
60 mph61.9 mph+1.9 mph
65 mph67.0 mph+2.0 mph
70 mph72.2 mph+2.2 mph
75 mph77.4 mph+2.4 mph
80 mph82.5 mph+2.5 mph

Each size on its own

Questions

Which is bigger, 275/60R17 or 295/60R17?
295/60R17 is taller by 0.94 inches (30.94" vs 29.99"). 295/60R17 is wider by 0.79 inches.
Can I replace 275/60R17 with 295/60R17?
It is not recommended without checking carefully. The diameter difference is +3.2%, 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 295/60R17 change my speedometer?
When your speedometer reads 60 mph with 295/60R17 fitted (calibrated for 275/60R17), your real speed is 61.9 mph. Your odometer will under-count miles by about 3.2%.
Will 295/60R17 lift my vehicle?
Ride height changes by half the diameter difference: +0.47 inches of ground clearance at the axle.

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