Tire Size Box

295/45R19 vs 295/50R19

295/50R19 compared with 295/45R19

+3.9% diameter, 0.0" width

295/50R19 is 30.61" tall vs 29.45". More than the 3% rule of thumb, so check carefully before switching.

29.5"19" rim5.2"11.6" wide
295/45R19 (solid) compared with 295/50R19 (dashed outline), drawn to scale

With 295/50R19 tires, when your speedometer says 60 mph you are really going

62.4 mph

295/50R19 is +1.16 inches (+3.9%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/45R19295/50R19Difference%
Overall diameter29.45"30.61"+1.16"+3.9%
Section width11.61"11.61"0.00"0.0%
Sidewall height5.23"5.81"+0.58"+11.1%
Circumference92.53"96.18"+3.65"+3.9%
Revolutions per mile684.8658.8−26.0−3.8%

Speedometer difference

If your vehicle came with 295/45R19 and you fit 295/50R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.8 mph+0.8 mph
30 mph31.2 mph+1.2 mph
40 mph41.6 mph+1.6 mph
50 mph52.0 mph+2.0 mph
60 mph62.4 mph+2.4 mph
65 mph67.6 mph+2.6 mph
70 mph72.8 mph+2.8 mph
75 mph78.0 mph+3.0 mph
80 mph83.2 mph+3.2 mph

Each size on its own

Questions

Which is bigger, 295/45R19 or 295/50R19?
295/50R19 is taller by 1.16 inches (30.61" vs 29.45"). 295/45R19 is the same width.
Can I replace 295/45R19 with 295/50R19?
It is not recommended without checking carefully. The diameter difference is +3.9%, 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 295/50R19 change my speedometer?
When your speedometer reads 60 mph with 295/50R19 fitted (calibrated for 295/45R19), your real speed is 62.4 mph. Your odometer will under-count miles by about 3.9%.
Will 295/50R19 lift my vehicle?
Ride height changes by half the diameter difference: +0.58 inches of ground clearance at the axle.

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