CarSpecsHQ

295/35R19 vs 265/35R20

265/35R20 is a safe swap for 295/35R19 by the usual ±3% rule: the diameter differs by +0.64%.

19" → 20"
295/35R19 27.13" · 265/35R20 27.30" · drawn to scale

Side by side

295/35R19265/35R20Difference
Overall diameter27.13"27.30"+0.17" (+0.64%)
Section width295 mm265 mm-30 mm
Sidewall4.06"3.65"-0.41"
Rim19"20"+1"
Circumference85.2"85.8"+0.5"
Revs per mile743739-5
Ride height——+0.09"
Speedometer reads 60 mph60.060.4+0.4 mph

Speedometer and odometer

020406080100120 reads 60 · actual 60.4 mph

With 265/35R20 on a car calibrated for 295/35R19, the speedometer reads 59.6 mph when you're really doing 60, and the odometer under-counts by 0.6%.

Speedo showsActual speed
30 mph30.2 mph
45 mph45.3 mph
60 mph60.4 mph
70 mph70.4 mph
80 mph80.5 mph

Other sizes close to 295/35R19

Questions

Can I replace 295/35R19 with 265/35R20?

265/35R20 is a safe swap for 295/35R19 by the usual ±3% rule: the diameter differs by +0.64%.

What's the difference between 295/35R19 and 265/35R20?

265/35R20 is 0.17" taller and 30 mm narrower; the sidewall is -0.41". At an indicated 60 mph you'd actually be doing 60.4 mph.

Will 265/35R20 fit on 295/35R19 wheels?

No — 295/35R19 needs a 19" wheel and 265/35R20 a 20" wheel. This is a plus/minus-size swap that changes wheels too.