215/30R19 vs 215/35R19

215/35R19 compared with 215/30R19

+3.5% diameter, 0.0" width

215/35R19 is 24.93" tall vs 24.08". More than the 3% rule of thumb, so check carefully before switching.

24.1"19" rim2.5"8.5" wide
215/30R19 (solid) compared with 215/35R19 (dashed outline), drawn to scale

With 215/35R19 tires, when your speedometer says 60 mph you are really going

62.1 mph

215/35R19 is +0.85 inches (+3.5%) in overall diameter. That is more than the 3% most shops and makers recommend.

215/30R19215/35R19Difference%
Overall diameter24.08"24.93"+0.85"+3.5%
Section width8.46"8.46"0.00"0.0%
Sidewall height2.54"2.96"+0.42"+16.7%
Circumference75.65"78.30"+2.66"+3.5%
Revolutions per mile837.6809.1−28.4−3.4%

Speedometer difference

If your vehicle came with 215/30R19 and you fit 215/35R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.7 mph+0.7 mph
30 mph31.1 mph+1.1 mph
40 mph41.4 mph+1.4 mph
50 mph51.8 mph+1.8 mph
60 mph62.1 mph+2.1 mph
65 mph67.3 mph+2.3 mph
70 mph72.5 mph+2.5 mph
75 mph77.6 mph+2.6 mph
80 mph82.8 mph+2.8 mph

Each size on its own

Questions

Which is bigger, 215/30R19 or 215/35R19?
215/35R19 is taller by 0.85 inches (24.93" vs 24.08"). 215/30R19 is the same width.
Can I replace 215/30R19 with 215/35R19?
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 215/35R19 change my speedometer?
When your speedometer reads 60 mph with 215/35R19 fitted (calibrated for 215/30R19), your real speed is 62.1 mph. Your odometer will under-count miles by about 3.5%.
Will 215/35R19 lift my vehicle?
Ride height changes by half the diameter difference: +0.42 inches of ground clearance at the axle.

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