CarSpecsHQ

195/70R14 vs 195/65R15

195/65R15 is a safe swap for 195/70R14 by the usual ±3% rule: the diameter differs by +0.94%.

14" → 15"
195/70R14 24.75" · 195/65R15 24.98" · drawn to scale

Side by side

195/70R14195/65R15Difference
Overall diameter24.75"24.98"+0.23" (+0.94%)
Section width195 mm195 mm0 mm
Sidewall5.37"4.99"-0.38"
Rim14"15"+1"
Circumference77.7"78.5"+0.7"
Revs per mile815807-8
Ride height——+0.12"
Speedometer reads 60 mph60.060.6+0.6 mph

Speedometer and odometer

020406080100120 reads 60 · actual 60.6 mph

With 195/65R15 on a car calibrated for 195/70R14, the speedometer reads 59.4 mph when you're really doing 60, and the odometer under-counts by 0.9%.

Speedo showsActual speed
30 mph30.3 mph
45 mph45.4 mph
60 mph60.6 mph
70 mph70.7 mph
80 mph80.8 mph

Other sizes close to 195/70R14

Questions

Can I replace 195/70R14 with 195/65R15?

195/65R15 is a safe swap for 195/70R14 by the usual ±3% rule: the diameter differs by +0.94%.

What's the difference between 195/70R14 and 195/65R15?

195/65R15 is 0.23" taller and 0 mm wider; the sidewall is -0.38". At an indicated 60 mph you'd actually be doing 60.6 mph.

Will 195/65R15 fit on 195/70R14 wheels?

No — 195/70R14 needs a 14" wheel and 195/65R15 a 15" wheel. This is a plus/minus-size swap that changes wheels too.