Tire size comparison
195/60R16 vs 195/55R16
195/55R16 is −3.0% shorter than 195/60R16: 24.4 in vs 25.2 in (−0.77 in), and the same width. With 195/55R16 on a vehicle set up for 195/60R16, the speedometer shows 60 mph at an actual 58.2 mph. That is more than the ±3% difference many shops use as a rule of thumb, so check carefully before switching.
Set up for: going smaller (195/55R16 instead of 195/60R16) · Different situation?
Your current size
e.g. 265/70R17, 2657017 or 33x12.50R20
Where do I find my size?
It's on the tire sidewall, e.g. P265/70R17 115T, and on the tire placard sticker on the driver's door jamb (also in the owner's manual). The placard shows the size the vehicle came with; the sidewall shows what is fitted now. If they differ, use the placard as your starting point. Digits are enough here: 2657017 or 33125020.
Size you're considering
195/60R16 vs 195/55R16: full comparison
| 195/60R16 | 195/55R16 | Difference | |
|---|---|---|---|
| Overall diameter | 25.21 in | 24.44 in | −0.77 in (−3.0%) |
| Width | 7.68 in | 7.68 in | ±0.00 in (±0.0%) |
| Sidewall height | 4.61 in | 4.22 in | −0.38 in |
| Circumference | 79.2 in | 76.8 in | −2.4 in |
| Revs per mile (nominal) | 800 | 825 | +25 |
| Wheel diameter | 16 in | 16 in | ±0 in |
| Diameter in mm | 640 | 621 | −20 mm |
Speedometer difference
Your speedometer is calibrated for 195/60R16. Fitted with 195/55R16, the actual speed is the reading × 24.44 ÷ 25.21.
| Speedometer shows | Actual speed | Difference |
|---|---|---|
| 20 mph | 19.4 mph | −0.6 mph |
| 30 mph | 29.1 mph | −0.9 mph |
| 45 mph | 43.6 mph | −1.4 mph |
| 55 mph | 53.3 mph | −1.7 mph |
| 60 mph | 58.2 mph | −1.8 mph |
| 70 mph | 67.9 mph | −2.1 mph |
| 80 mph | 77.6 mph | −2.4 mph |
Real tires: published diameters
195/60R16: 25.2 in published by 1 maker; 195/55R16: 24.3–24.6 in published by 4 makers. Calculated figures assume a nominal tire; the exact difference between two specific tires depends on their models.
More about each size: 195/60R16 · 195/55R16
Related comparisons
FAQ
Which is bigger, 195/60R16 or 195/55R16?
195/55R16 is −3.0% shorter than 195/60R16: 24.4 in vs 25.2 in (−0.77 in).
How much will my speedometer be off with 195/55R16 instead of 195/60R16?
The speedometer is calibrated for 195/60R16. With 195/55R16 it shows 60 mph when you are doing 58.2 mph, and 70 mph at 67.9 mph (−3.0%). Your speedometer also has its own factory tolerance.
Can I replace 195/60R16 with 195/55R16?
The diameter difference is −3.0%. Whether it fits depends on things this calculation can't see: wheel width and offset, clearance at full lock and over bumps, load index and speed rating, and your vehicle maker's approval. Check your door-jamb placard and owner's manual and ask a tire professional.