CarSpecsHQ

225/60R16 vs 205/70R16

205/70R16 is a safe swap for 225/60R16 by the usual ±3% rule: the diameter differs by +2.51%.

16" rim
225/60R16 26.63" · 205/70R16 27.30" · drawn to scale

Side by side

225/60R16205/70R16Difference
Overall diameter26.63"27.30"+0.67" (+2.51%)
Section width225 mm205 mm-20 mm
Sidewall5.31"5.65"+0.33"
Rim16"16"same
Circumference83.7"85.8"+2.1"
Revs per mile757739-19
Ride height——+0.33"
Speedometer reads 60 mph60.061.5+1.5 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.5 mph

With 205/70R16 on a car calibrated for 225/60R16, the speedometer reads 58.5 mph when you're really doing 60, and the odometer under-counts by 2.5%.

Speedo showsActual speed
30 mph30.8 mph
45 mph46.1 mph
60 mph61.5 mph
70 mph71.8 mph
80 mph82.0 mph

Other sizes close to 225/60R16

Questions

Can I replace 225/60R16 with 205/70R16?

205/70R16 is a safe swap for 225/60R16 by the usual ±3% rule: the diameter differs by +2.51%.

What's the difference between 225/60R16 and 205/70R16?

205/70R16 is 0.67" taller and 20 mm narrower; the sidewall is +0.33". At an indicated 60 mph you'd actually be doing 61.5 mph.

Will 205/70R16 fit on 225/60R16 wheels?

Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 205 mm tire and the fender clearance.