CarSpecsHQ

295/30R22 vs 315/30R22

315/30R22 is a safe swap for 295/30R22 by the usual ±3% rule: the diameter differs by +1.63%.

22" rim
295/30R22 28.97" · 315/30R22 29.44" · drawn to scale

Side by side

295/30R22315/30R22Difference
Overall diameter28.97"29.44"+0.47" (+1.63%)
Section width295 mm315 mm+20 mm
Sidewall3.48"3.72"+0.24"
Rim22"22"same
Circumference91.0"92.5"+1.5"
Revs per mile696685-11
Ride height——+0.24"
Speedometer reads 60 mph60.061.0+1.0 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.0 mph

With 315/30R22 on a car calibrated for 295/30R22, the speedometer reads 59.0 mph when you're really doing 60, and the odometer under-counts by 1.6%.

Speedo showsActual speed
30 mph30.5 mph
45 mph45.7 mph
60 mph61.0 mph
70 mph71.1 mph
80 mph81.3 mph

Other sizes close to 295/30R22

Questions

Can I replace 295/30R22 with 315/30R22?

315/30R22 is a safe swap for 295/30R22 by the usual ±3% rule: the diameter differs by +1.63%.

What's the difference between 295/30R22 and 315/30R22?

315/30R22 is 0.47" taller and 20 mm wider; the sidewall is +0.24". At an indicated 60 mph you'd actually be doing 61.0 mph.

Will 315/30R22 fit on 295/30R22 wheels?

Both use a 22" rim, so the wheel diameter matches; check the wheel's width range for a 315 mm tire and the fender clearance.