Tire Size Box

205/60R13 vs 225/60R13

225/60R13 compared with 205/60R13

+4.2% diameter, +0.8" width

225/60R13 is 23.63" tall vs 22.69". More than the 3% rule of thumb, so check carefully before switching.

22.7"13" rim4.8"8.1" wide
205/60R13 (solid) compared with 225/60R13 (dashed outline), drawn to scale

With 225/60R13 tires, when your speedometer says 60 mph you are really going

62.5 mph

225/60R13 is +0.94 inches (+4.2%) in overall diameter. That is more than the 3% most shops and makers recommend.

205/60R13225/60R13Difference%
Overall diameter22.69"23.63"+0.94"+4.2%
Section width8.07"8.86"+0.79"+9.8%
Sidewall height4.84"5.31"+0.47"+9.8%
Circumference71.27"74.24"+2.97"+4.2%
Revolutions per mile889.0853.5−35.6−4.0%

Speedometer difference

If your vehicle came with 205/60R13 and you fit 225/60R13, 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 mph41.7 mph+1.7 mph
50 mph52.1 mph+2.1 mph
60 mph62.5 mph+2.5 mph
65 mph67.7 mph+2.7 mph
70 mph72.9 mph+2.9 mph
75 mph78.1 mph+3.1 mph
80 mph83.3 mph+3.3 mph

Each size on its own

Questions

Which is bigger, 205/60R13 or 225/60R13?
225/60R13 is taller by 0.94 inches (23.63" vs 22.69"). 225/60R13 is wider by 0.79 inches.
Can I replace 205/60R13 with 225/60R13?
It is not recommended without checking carefully. The diameter difference is +4.2%, 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 225/60R13 change my speedometer?
When your speedometer reads 60 mph with 225/60R13 fitted (calibrated for 205/60R13), your real speed is 62.5 mph. Your odometer will under-count miles by about 4.2%.
Will 225/60R13 lift my vehicle?
Ride height changes by half the diameter difference: +0.47 inches of ground clearance at the axle.

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