175/70R16 vs 195/65R16
Going from one to the other changes the overall height by +1.3 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 175/70R16 | 195/65R16 | Change |
|---|---|---|---|
| Overall height | 25.6" | 26.0" | +1.3 % |
| Sidewall | 4.82" | 4.99" | +3.5 % |
| Section width | 175 mm | 195 mm | +11.4 % |
| Circumference | 80.6" | 81.6" | +1.3 % |
| Revs per mile | 786 | 776 | -1.3 % |
| Axle height | 12.82" | 12.99" | +4.3 mm |
| Approved rim width | 5–6" | 5.5–7" | overlap 5.5–6" |
Both are approved on a rim 5.5" to 6" wide. If yours is in that band, this is a tire change and nothing else.
What the speedometer will say
Calibrated for 175/70R16. Fit 195/65R16 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 30.4 mph | +0.4 |
| 50 mph | 50.7 mph | +0.7 |
| 70 mph | 70.9 mph | +0.9 |
| 90 mph | 91.2 mph | +1.2 |
The odometer drifts with it. Ten thousand miles on the dial are really 10,130 on the road, so it under-counts by 130. At a true 70 mph the first turns 917 times a minute, the second 906.
What drivers reported
Nobody has filed a complaint naming 175/70R16. 195/65R16 carries 2.