Tire Size Box

275/25R19 vs 275/35R19

275/35R19 compared with 275/25R19

+8.9% diameter, 0.0" width

275/35R19 is 26.58" tall vs 24.41". More than the 3% rule of thumb, so check carefully before switching.

24.4"19" rim2.7"10.8" wide
275/25R19 (solid) compared with 275/35R19 (dashed outline), drawn to scale

With 275/35R19 tires, when your speedometer says 60 mph you are really going

65.3 mph

275/35R19 is +2.17 inches (+8.9%) in overall diameter. That is more than the 3% most shops and makers recommend.

275/25R19275/35R19Difference%
Overall diameter24.41"26.58"+2.17"+8.9%
Section width10.83"10.83"0.00"0.0%
Sidewall height2.71"3.79"+1.08"+40.0%
Circumference76.70"83.50"+6.80"+8.9%
Revolutions per mile826.1758.8−67.3−8.1%

Speedometer difference

If your vehicle came with 275/25R19 and you fit 275/35R19, 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 mph43.5 mph+3.5 mph
50 mph54.4 mph+4.4 mph
60 mph65.3 mph+5.3 mph
65 mph70.8 mph+5.8 mph
70 mph76.2 mph+6.2 mph
75 mph81.7 mph+6.7 mph
80 mph87.1 mph+7.1 mph

Each size on its own

Questions

Which is bigger, 275/25R19 or 275/35R19?
275/35R19 is taller by 2.17 inches (26.58" vs 24.41"). 275/25R19 is the same width.
Can I replace 275/25R19 with 275/35R19?
It is not recommended without checking carefully. The diameter difference is +8.9%, 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 275/35R19 change my speedometer?
When your speedometer reads 60 mph with 275/35R19 fitted (calibrated for 275/25R19), your real speed is 65.3 mph. Your odometer will under-count miles by about 8.9%.
Will 275/35R19 lift my vehicle?
Ride height changes by half the diameter difference: +1.08 inches of ground clearance at the axle.

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