CarSpecsHQ

215/70R16 vs 225/70R16

225/70R16 is a safe swap for 215/70R16 by the usual ±3% rule: the diameter differs by +1.98%.

16" rim
215/70R16 27.85" · 225/70R16 28.40" · drawn to scale

Side by side

215/70R16225/70R16Difference
Overall diameter27.85"28.40"+0.55" (+1.98%)
Section width215 mm225 mm+10 mm
Sidewall5.93"6.20"+0.28"
Rim16"16"same
Circumference87.5"89.2"+1.7"
Revs per mile724710-14
Ride height——+0.28"
Speedometer reads 60 mph60.061.2+1.2 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.2 mph

With 225/70R16 on a car calibrated for 215/70R16, the speedometer reads 58.8 mph when you're really doing 60, and the odometer under-counts by 2.0%.

Speedo showsActual speed
30 mph30.6 mph
45 mph45.9 mph
60 mph61.2 mph
70 mph71.4 mph
80 mph81.6 mph

Other sizes close to 215/70R16

Questions

Can I replace 215/70R16 with 225/70R16?

225/70R16 is a safe swap for 215/70R16 by the usual ±3% rule: the diameter differs by +1.98%.

What's the difference between 215/70R16 and 225/70R16?

225/70R16 is 0.55" taller and 10 mm wider; the sidewall is +0.28". At an indicated 60 mph you'd actually be doing 61.2 mph.

Will 225/70R16 fit on 215/70R16 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.