CarSpecsHQ

225/65R17 vs 275/55R17

275/55R17 is a safe swap for 225/65R17 by the usual ±3% rule: the diameter differs by +1.38%.

17" rim
225/65R17 28.52" · 275/55R17 28.91" · drawn to scale

Side by side

225/65R17275/55R17Difference
Overall diameter28.52"28.91"+0.39" (+1.38%)
Section width225 mm275 mm+50 mm
Sidewall5.76"5.95"+0.20"
Rim17"17"same
Circumference89.6"90.8"+1.2"
Revs per mile707698-10
Ride height——+0.20"
Speedometer reads 60 mph60.060.8+0.8 mph

Speedometer and odometer

020406080100120 reads 60 · actual 60.8 mph

With 275/55R17 on a car calibrated for 225/65R17, the speedometer reads 59.2 mph when you're really doing 60, and the odometer under-counts by 1.4%.

Speedo showsActual speed
30 mph30.4 mph
45 mph45.6 mph
60 mph60.8 mph
70 mph71.0 mph
80 mph81.1 mph

Other sizes close to 225/65R17

Questions

Can I replace 225/65R17 with 275/55R17?

275/55R17 is a safe swap for 225/65R17 by the usual ±3% rule: the diameter differs by +1.38%.

What's the difference between 225/65R17 and 275/55R17?

275/55R17 is 0.39" taller and 50 mm wider; the sidewall is +0.20". At an indicated 60 mph you'd actually be doing 60.8 mph.

Will 275/55R17 fit on 225/65R17 wheels?

Both use a 17" rim, so the wheel diameter matches; check the wheel's width range for a 275 mm tire and the fender clearance.