Tire Size Box

175/60R14 vs 175/70R14

175/70R14 compared with 175/60R14

+6.2% diameter, 0.0" width

175/70R14 is 23.65" tall vs 22.27". More than the 3% rule of thumb, so check carefully before switching.

22.3"14" rim4.1"6.9" wide
175/60R14 (solid) compared with 175/70R14 (dashed outline), drawn to scale

With 175/70R14 tires, when your speedometer says 60 mph you are really going

63.7 mph

175/70R14 is +1.38 inches (+6.2%) in overall diameter. That is more than the 3% most shops and makers recommend.

175/60R14175/70R14Difference%
Overall diameter22.27"23.65"+1.38"+6.2%
Section width6.89"6.89"0.00"0.0%
Sidewall height4.13"4.82"+0.69"+16.7%
Circumference69.96"74.29"+4.33"+6.2%
Revolutions per mile905.7852.9−52.8−5.8%

Speedometer difference

If your vehicle came with 175/60R14 and you fit 175/70R14, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.2 mph+1.2 mph
30 mph31.9 mph+1.9 mph
40 mph42.5 mph+2.5 mph
50 mph53.1 mph+3.1 mph
60 mph63.7 mph+3.7 mph
65 mph69.0 mph+4.0 mph
70 mph74.3 mph+4.3 mph
75 mph79.6 mph+4.6 mph
80 mph85.0 mph+5.0 mph

Each size on its own

Questions

Which is bigger, 175/60R14 or 175/70R14?
175/70R14 is taller by 1.38 inches (23.65" vs 22.27"). 175/60R14 is the same width.
Can I replace 175/60R14 with 175/70R14?
It is not recommended without checking carefully. The diameter difference is +6.2%, 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 175/70R14 change my speedometer?
When your speedometer reads 60 mph with 175/70R14 fitted (calibrated for 175/60R14), your real speed is 63.7 mph. Your odometer will under-count miles by about 6.2%.
Will 175/70R14 lift my vehicle?
Ride height changes by half the diameter difference: +0.69 inches of ground clearance at the axle.

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