CarSpecsHQ

295/30R20 vs 295/35R19

295/35R19 is a safe swap for 295/30R20 by the usual ±3% rule: the diameter differs by +0.60%.

20" → 19"
295/30R20 26.97" · 295/35R19 27.13" · drawn to scale

Side by side

295/30R20295/35R19Difference
Overall diameter26.97"27.13"+0.16" (+0.60%)
Section width295 mm295 mm0 mm
Sidewall3.48"4.06"+0.58"
Rim20"19"-1"
Circumference84.7"85.2"+0.5"
Revs per mile748743-4
Ride height——+0.08"
Speedometer reads 60 mph60.060.4+0.4 mph

Speedometer and odometer

020406080100120 reads 60 · actual 60.4 mph

With 295/35R19 on a car calibrated for 295/30R20, 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 295/30R20

Questions

Can I replace 295/30R20 with 295/35R19?

295/35R19 is a safe swap for 295/30R20 by the usual ±3% rule: the diameter differs by +0.60%.

What's the difference between 295/30R20 and 295/35R19?

295/35R19 is 0.16" taller and 0 mm wider; the sidewall is +0.58". At an indicated 60 mph you'd actually be doing 60.4 mph.

Will 295/35R19 fit on 295/30R20 wheels?

No — 295/30R20 needs a 20" wheel and 295/35R19 a 19" wheel. This is a plus/minus-size swap that changes wheels too.