CarSpecsHQ

275/35R20 vs 295/35R20

295/35R20 is a safe swap for 275/35R20 by the usual ±3% rule: the diameter differs by +2.00%.

20" rim
275/35R20 27.58" · 295/35R20 28.13" · drawn to scale

Side by side

275/35R20295/35R20Difference
Overall diameter27.58"28.13"+0.55" (+2.00%)
Section width275 mm295 mm+20 mm
Sidewall3.79"4.06"+0.28"
Rim20"20"same
Circumference86.6"88.4"+1.7"
Revs per mile731717-14
Ride height——+0.28"
Speedometer reads 60 mph60.061.2+1.2 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.2 mph

With 295/35R20 on a car calibrated for 275/35R20, 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 275/35R20

Questions

Can I replace 275/35R20 with 295/35R20?

295/35R20 is a safe swap for 275/35R20 by the usual ±3% rule: the diameter differs by +2.00%.

What's the difference between 275/35R20 and 295/35R20?

295/35R20 is 0.55" taller and 20 mm wider; the sidewall is +0.28". At an indicated 60 mph you'd actually be doing 61.2 mph.

Will 295/35R20 fit on 275/35R20 wheels?

Both use a 20" rim, so the wheel diameter matches; check the wheel's width range for a 295 mm tire and the fender clearance.