195/50R16 vs 195/45R17
195/45R17 is 0.23 in (5.9 mm) taller than 195/50R16, a +0.98% diameter difference. With the speedometer set for 195/50R16, an indicated 60 mph is 60.6 mph on 195/45R17.
Is this a safe swap?
Diameter difference +0.98%: under 1%
By overall diameter alone, 195/45R17 is a near match for 195/50R16; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.
| Measurement | 195/50R16 | 195/45R17 | Difference | % diff |
|---|---|---|---|---|
| Overall diameter | 23.68 in (601.4 mm) | 23.91 in (607.3 mm) | +0.23 in (+5.9 mm) | +0.98% |
| Sidewall height | 3.84 in (97.5 mm) | 3.45 in (87.8 mm) | −0.38 in (−9.7 mm) | −10.00% |
| Section width | 7.68 in (195.0 mm) | 7.68 in (195.0 mm) | 0.00 in (0.0 mm) | 0.00% |
| Circumference | 74.38 in (1,889.4 mm) | 75.11 in (1,907.9 mm) | +0.73 in (+18.5 mm) | +0.98% |
| Revolutions per mile | 852 | 844 | −8 | −0.97% |
| Indicated | Actual on 195/50R16 | Actual on 195/45R17 | Difference |
|---|---|---|---|
| 30 mph | 30.0 mph | 30.3 mph | +0.3 mph |
| 60 mph | 60.0 mph | 60.6 mph | +0.6 mph |
| 75 mph | 75.0 mph | 75.7 mph | +0.7 mph |
Ride-height change: 195/45R17 raises the vehicle by 0.12 in (2.9 mm) at the axle (half the +5.9 mm diameter difference).
195/45R17 is 0.23 in taller than 195/50R16 and the same width, a 0.98% difference in overall diameter.
With the speedometer calibrated for 195/50R16, an indicated 60 mph is actually 60.6 mph on 195/45R17, and revolutions per mile change from 852 to 844.
195/45R17 mounts on a 17-inch wheel, a plus-1 fitment from the 16-inch wheel of 195/50R16.
Size pages
Other comparisons with 195/50R16
- 185/65R14 vs 195/50R16
- 175/70R14 vs 195/50R16
- 205/60R14 vs 195/50R16
- 155/80R14 vs 195/50R16
- 195/65R14 vs 195/50R16
- 165/65R15 vs 195/50R16
- 195/55R15 vs 195/50R16
- 215/50R15 vs 195/50R16
Other comparisons with 195/45R17
- 185/60R15 vs 195/45R17
- 225/50R15 vs 195/45R17
- 205/55R15 vs 195/45R17
- 175/65R15 vs 195/45R17
- 195/60R15 vs 195/45R17
- 215/45R16 vs 195/45R17
- 185/55R16 vs 195/45R17
- 205/50R16 vs 195/45R17
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.