CarSpecsHQ

205/60R16 vs 225/60R16

225/60R16 is outside the ±3% rule as a replacement for 205/60R16: the diameter differs by +3.68%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

16" rim
205/60R16 25.69" · 225/60R16 26.63" · drawn to scale

Side by side

205/60R16225/60R16Difference
Overall diameter25.69"26.63"+0.94" (+3.68%)
Section width205 mm225 mm+20 mm
Sidewall4.84"5.31"+0.47"
Rim16"16"same
Circumference80.7"83.7"+3.0"
Revs per mile785757-28
Ride height——+0.47"
Speedometer reads 60 mph60.062.2+2.2 mph

Speedometer and odometer

020406080100120 reads 60 · actual 62.2 mph

With 225/60R16 on a car calibrated for 205/60R16, the speedometer reads 57.9 mph when you're really doing 60, and the odometer under-counts by 3.7%.

Speedo showsActual speed
30 mph31.1 mph
45 mph46.7 mph
60 mph62.2 mph
70 mph72.6 mph
80 mph82.9 mph

Other sizes close to 205/60R16

Questions

Can I replace 205/60R16 with 225/60R16?

225/60R16 is outside the ±3% rule as a replacement for 205/60R16: the diameter differs by +3.68%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

What's the difference between 205/60R16 and 225/60R16?

225/60R16 is 0.94" taller and 20 mm wider; the sidewall is +0.47". At an indicated 60 mph you'd actually be doing 62.2 mph.

Will 225/60R16 fit on 205/60R16 wheels?

Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 225 mm tire and the fender clearance.