Tire Size Box

225/60R16 vs 225/70R16

225/70R16 compared with 225/60R16

+6.7% diameter, 0.0" width

225/70R16 is 28.40" tall vs 26.63". More than the 3% rule of thumb, so check carefully before switching.

26.6"16" rim5.3"8.9" wide
225/60R16 (solid) compared with 225/70R16 (dashed outline), drawn to scale

With 225/70R16 tires, when your speedometer says 60 mph you are really going

64.0 mph

225/70R16 is +1.77 inches (+6.7%) in overall diameter. That is more than the 3% most shops and makers recommend.

225/60R16225/70R16Difference%
Overall diameter26.63"28.40"+1.77"+6.7%
Section width8.86"8.86"0.00"0.0%
Sidewall height5.31"6.20"+0.89"+16.7%
Circumference83.66"89.23"+5.57"+6.7%
Revolutions per mile757.3710.1−47.2−6.2%

Speedometer difference

If your vehicle came with 225/60R16 and you fit 225/70R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.3 mph+1.3 mph
30 mph32.0 mph+2.0 mph
40 mph42.7 mph+2.7 mph
50 mph53.3 mph+3.3 mph
60 mph64.0 mph+4.0 mph
65 mph69.3 mph+4.3 mph
70 mph74.7 mph+4.7 mph
75 mph80.0 mph+5.0 mph
80 mph85.3 mph+5.3 mph

Each size on its own

Questions

Which is bigger, 225/60R16 or 225/70R16?
225/70R16 is taller by 1.77 inches (28.40" vs 26.63"). 225/60R16 is the same width.
Can I replace 225/60R16 with 225/70R16?
It is not recommended without checking carefully. The diameter difference is +6.7%, 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 225/70R16 change my speedometer?
When your speedometer reads 60 mph with 225/70R16 fitted (calibrated for 225/60R16), your real speed is 64.0 mph. Your odometer will under-count miles by about 6.7%.
Will 225/70R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.89 inches of ground clearance at the axle.

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