195/55R16 vs 215/45R17Tire Size Comparison

Safe

The 0.7% diameter difference is within the accepted 3% tolerance.

195/55R16621mm dia215/45R17625mm dia+2.2mm

Comparison Details

Overall Diameter620.9 vs 625.3 mm (+4.4 mm)
Diameter Difference+0.71%
Section Width195 vs 215 mm (+20 mm)
Sidewall Height107.3 vs 96.8 mm (-10.5 mm)
Circumference1950.6 vs 1964.4 mm
Clearance Change+2.2 mm
Speedometer Error+0.71%
Revs/Mile825 vs 819

Speedometer Correction

When switching from 195/55R16 to 215/45R17, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h30.2 km/h+0.2 km/h
40 km/h40.3 km/h+0.3 km/h
50 km/h50.4 km/h+0.4 km/h
60 km/h60.4 km/h+0.4 km/h
70 km/h70.5 km/h+0.5 km/h
80 km/h80.6 km/h+0.6 km/h
90 km/h90.6 km/h+0.6 km/h
100 km/h100.7 km/h+0.7 km/h
110 km/h110.8 km/h+0.8 km/h
120 km/h120.9 km/h+0.9 km/h
130 km/h130.9 km/h+0.9 km/h

Vehicles Using These Sizes

Vehicles with 215/45R17

Individual Tire Size Details

Practical Guidance

Switching from 195/55R16 to 215/45R17 is within the industry-accepted 3% diameter tolerance. Your speedometer, ABS, and traction control should function normally. Note: these sizes require different rim diameters (16" vs 17"), so you will need different wheels.

The 3% diameter tolerance is a widely accepted industry guideline referenced by the ETRTO and most vehicle manufacturers. When in doubt, consult your vehicle's owner's manual or a qualified tire professional. For U.S. tire safety standards and recalls, see the NHTSA Tire Safety page.

Frequently Asked Questions

Safe. The overall diameter differs by 0.71%, width changes by 20mm.

Speedometer error will be 0.71%. At an indicated 100 km/h, actual speed is about 100.7 km/h.

Ground clearance changes by +2.2mm per side.