CarSpecsHQ

225/70R16 vs 225/65R17

225/65R17 is a safe swap for 225/70R16 by the usual ±3% rule: the diameter differs by +0.40%.

16" → 17"
225/70R16 28.40" · 225/65R17 28.52" · drawn to scale

Side by side

225/70R16225/65R17Difference
Overall diameter28.40"28.52"+0.11" (+0.40%)
Section width225 mm225 mm0 mm
Sidewall6.20"5.76"-0.44"
Rim16"17"+1"
Circumference89.2"89.6"+0.4"
Revs per mile710707-3
Ride height——+0.06"
Speedometer reads 60 mph60.060.2+0.2 mph

Speedometer and odometer

020406080100120 reads 60 · actual 60.2 mph

With 225/65R17 on a car calibrated for 225/70R16, the speedometer reads 59.8 mph when you're really doing 60, and the odometer under-counts by 0.4%.

Speedo showsActual speed
30 mph30.1 mph
45 mph45.2 mph
60 mph60.2 mph
70 mph70.3 mph
80 mph80.3 mph

Other sizes close to 225/70R16

Questions

Can I replace 225/70R16 with 225/65R17?

225/65R17 is a safe swap for 225/70R16 by the usual ±3% rule: the diameter differs by +0.40%.

What's the difference between 225/70R16 and 225/65R17?

225/65R17 is 0.11" taller and 0 mm wider; the sidewall is -0.44". At an indicated 60 mph you'd actually be doing 60.2 mph.

Will 225/65R17 fit on 225/70R16 wheels?

No — 225/70R16 needs a 16" wheel and 225/65R17 a 17" wheel. This is a plus/minus-size swap that changes wheels too.