Comparison
215/55 R17 vs 225/55 R16
225/55 R16 drops the rim from 17 to 16 inches versus 215/55 R17, trading wheel size for taller sidewall. This alternative fitment shifts overall diameter slightly from OEM. More tread on the ground tends to improve dry grip and stance, with a small fuel-economy and clearance tradeoff.
Expect a slight but noticeable shift in indicated speed compared to the original tires. Diameter change stays inside the conservative ±3% safety window — an OEM-safe fitment on most vehicles.
TakeTypical choice for a dedicated winter or off-road setup where extra sidewall pays off.
Quick math: 225/55 R16 is 14.4 mm shorter than 215/55 R17, shifting the speedometer by -2.15%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-14.4 mm
-2.15%
Speedometer at 100
97.8 km/h
-2.15% error
Ground clearance
-7.2 mm
ride height delta
Sidewall change
+5.5 mm
revs/km: 486.8
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/compare/215-55-r17-vs-225-55-r16Detailed comparison
| Metric | 215/55 R17 | 225/55 R16 | Difference |
|---|---|---|---|
| Overall diameter | 668.3 mm | 653.9 mm | -14.4 mm (-2.15%) |
| Sidewall height | 118.3 mm | 123.8 mm | +5.5 mm |
| Circumference | 2.100 m | 2.054 m | -45.2 mm |
| Revs / km | 476.3 | 486.8 | +10.5 |
| Ground clearance | reference | -7.2 mm | -7.2 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 97.8 km/h | -2.15 km/h |
Verdict: excellent
Within ±3% — speedometer, ABS and traction control should behave normally.
Speedometer impact
At a true 100 km/h, your dashboard will read 97.8 km/h after switching to 225/55 R16 — a -2.15% offset. Use the speedometer error calculator to recheck for other indicated speeds, and the speedometer error guide for the full background.
Ground clearance change
The new tire's half-diameter changes ride height by -7.2 mm. Small differences are absorbed by suspension travel, but anything beyond ±10 mm can affect headlight aim, fender clearance and bump-stop margin. See the plus-sizing guide before committing.
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215/55 R17
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225/55 R16
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