Tire Size Box

295/35R19 vs 295/45R19

295/45R19 compared with 295/35R19

+8.6% diameter, 0.0" width

295/45R19 is 29.45" tall vs 27.13". More than the 3% rule of thumb, so check carefully before switching.

27.1"19" rim4.1"11.6" wide
295/35R19 (solid) compared with 295/45R19 (dashed outline), drawn to scale

With 295/45R19 tires, when your speedometer says 60 mph you are really going

65.1 mph

295/45R19 is +2.32 inches (+8.6%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/35R19295/45R19Difference%
Overall diameter27.13"29.45"+2.32"+8.6%
Section width11.61"11.61"0.00"0.0%
Sidewall height4.06"5.23"+1.16"+28.6%
Circumference85.23"92.53"+7.30"+8.6%
Revolutions per mile743.4684.8−58.6−7.9%

Speedometer difference

If your vehicle came with 295/35R19 and you fit 295/45R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.7 mph+1.7 mph
30 mph32.6 mph+2.6 mph
40 mph43.4 mph+3.4 mph
50 mph54.3 mph+4.3 mph
60 mph65.1 mph+5.1 mph
65 mph70.6 mph+5.6 mph
70 mph76.0 mph+6.0 mph
75 mph81.4 mph+6.4 mph
80 mph86.8 mph+6.8 mph

Each size on its own

Questions

Which is bigger, 295/35R19 or 295/45R19?
295/45R19 is taller by 2.32 inches (29.45" vs 27.13"). 295/35R19 is the same width.
Can I replace 295/35R19 with 295/45R19?
It is not recommended without checking carefully. The diameter difference is +8.6%, 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 295/45R19 change my speedometer?
When your speedometer reads 60 mph with 295/45R19 fitted (calibrated for 295/35R19), your real speed is 65.1 mph. Your odometer will under-count miles by about 8.6%.
Will 295/45R19 lift my vehicle?
Ride height changes by half the diameter difference: +1.16 inches of ground clearance at the axle.

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