Tire size comparison
205/60R16 vs 215/55R16
215/55R16 is −1.5% shorter than 205/60R16: 25.3 in vs 25.7 in (−0.37 in), and 0.4 in wider. With 215/55R16 on a vehicle set up for 205/60R16, the speedometer shows 60 mph at an actual 59.1 mph. That is within the ±3% difference many shops use as a rule of thumb (not a manufacturer or legal limit).
Set up for: checking a replacement size (215/55R16 instead of 205/60R16) · 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
205/60R16 vs 215/55R16: full comparison
| 205/60R16 | 215/55R16 | Difference | |
|---|---|---|---|
| Overall diameter | 25.69 in | 25.31 in | −0.37 in (−1.5%) |
| Width | 8.07 in | 8.46 in | +0.39 in (+4.9%) |
| Sidewall height | 4.84 in | 4.66 in | −0.19 in |
| Circumference | 80.7 in | 79.5 in | −1.2 in |
| Revs per mile (nominal) | 785 | 797 | +12 |
| Wheel diameter | 16 in | 16 in | ±0 in |
| Diameter in mm | 652 | 643 | −10 mm |
Speedometer difference
Your speedometer is calibrated for 205/60R16. Fitted with 215/55R16, the actual speed is the reading × 25.31 ÷ 25.69.
| Speedometer shows | Actual speed | Difference |
|---|---|---|
| 20 mph | 19.7 mph | −0.3 mph |
| 30 mph | 29.6 mph | −0.4 mph |
| 45 mph | 44.3 mph | −0.7 mph |
| 55 mph | 54.2 mph | −0.8 mph |
| 60 mph | 59.1 mph | −0.9 mph |
| 70 mph | 69.0 mph | −1.0 mph |
| 80 mph | 78.8 mph | −1.2 mph |
Real tires: published diameters
205/60R16: 25.5–26 in published by 4 makers; 215/55R16: 25.1–25.6 in published by 5 makers. Calculated figures assume a nominal tire; the exact difference between two specific tires depends on their models.
More about each size: 205/60R16 · 215/55R16
Related comparisons
FAQ
Which is bigger, 205/60R16 or 215/55R16?
215/55R16 is −1.5% shorter than 205/60R16: 25.3 in vs 25.7 in (−0.37 in).
How much will my speedometer be off with 215/55R16 instead of 205/60R16?
The speedometer is calibrated for 205/60R16. With 215/55R16 it shows 60 mph when you are doing 59.1 mph, and 70 mph at 69.0 mph (−1.5%). Your speedometer also has its own factory tolerance.
Can I replace 205/60R16 with 215/55R16?
The diameter difference is −1.5%. 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.