Tire Size Box

215/60R14 vs 235/60R14

235/60R14 compared with 215/60R14

+3.9% diameter, +0.8" width

235/60R14 is 25.10" tall vs 24.16". More than the 3% rule of thumb, so check carefully before switching.

24.2"14" rim5.1"8.5" wide
215/60R14 (solid) compared with 235/60R14 (dashed outline), drawn to scale

With 235/60R14 tires, when your speedometer says 60 mph you are really going

62.3 mph

235/60R14 is +0.94 inches (+3.9%) in overall diameter. That is more than the 3% most shops and makers recommend.

215/60R14235/60R14Difference%
Overall diameter24.16"25.10"+0.94"+3.9%
Section width8.46"9.25"+0.79"+9.3%
Sidewall height5.08"5.55"+0.47"+9.3%
Circumference75.89"78.86"+2.97"+3.9%
Revolutions per mile834.9803.4−31.4−3.8%

Speedometer difference

If your vehicle came with 215/60R14 and you fit 235/60R14, 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 mph62.3 mph+2.3 mph
65 mph67.5 mph+2.5 mph
70 mph72.7 mph+2.7 mph
75 mph77.9 mph+2.9 mph
80 mph83.1 mph+3.1 mph

Each size on its own

Questions

Which is bigger, 215/60R14 or 235/60R14?
235/60R14 is taller by 0.94 inches (25.10" vs 24.16"). 235/60R14 is wider by 0.79 inches.
Can I replace 215/60R14 with 235/60R14?
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 235/60R14 change my speedometer?
When your speedometer reads 60 mph with 235/60R14 fitted (calibrated for 215/60R14), your real speed is 62.3 mph. Your odometer will under-count miles by about 3.9%.
Will 235/60R14 lift my vehicle?
Ride height changes by half the diameter difference: +0.47 inches of ground clearance at the axle.

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