Tire Size Box

285/25R19 vs 285/35R19

285/35R19 compared with 285/25R19

+9.1% diameter, 0.0" width

285/35R19 is 26.85" tall vs 24.61". More than the 3% rule of thumb, so check carefully before switching.

24.6"19" rim2.8"11.2" wide
285/25R19 (solid) compared with 285/35R19 (dashed outline), drawn to scale

With 285/35R19 tires, when your speedometer says 60 mph you are really going

65.5 mph

285/35R19 is +2.24 inches (+9.1%) in overall diameter. That is more than the 3% most shops and makers recommend.

285/25R19285/35R19Difference%
Overall diameter24.61"26.85"+2.24"+9.1%
Section width11.22"11.22"0.00"0.0%
Sidewall height2.81"3.93"+1.12"+40.0%
Circumference77.32"84.37"+7.05"+9.1%
Revolutions per mile819.5751.0−68.5−8.4%

Speedometer difference

If your vehicle came with 285/25R19 and you fit 285/35R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.8 mph+1.8 mph
30 mph32.7 mph+2.7 mph
40 mph43.6 mph+3.6 mph
50 mph54.6 mph+4.6 mph
60 mph65.5 mph+5.5 mph
65 mph70.9 mph+5.9 mph
70 mph76.4 mph+6.4 mph
75 mph81.8 mph+6.8 mph
80 mph87.3 mph+7.3 mph

Each size on its own

Questions

Which is bigger, 285/25R19 or 285/35R19?
285/35R19 is taller by 2.24 inches (26.85" vs 24.61"). 285/25R19 is the same width.
Can I replace 285/25R19 with 285/35R19?
It is not recommended without checking carefully. The diameter difference is +9.1%, 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 285/35R19 change my speedometer?
When your speedometer reads 60 mph with 285/35R19 fitted (calibrated for 285/25R19), your real speed is 65.5 mph. Your odometer will under-count miles by about 9.1%.
Will 285/35R19 lift my vehicle?
Ride height changes by half the diameter difference: +1.12 inches of ground clearance at the axle.

Other comparisons