205/60R16 vs 215/55R17Tire Size Comparison

Safe

The 2.4% diameter difference is within the accepted 3% tolerance.

205/60R16652mm dia215/55R17668mm dia+7.9mm

Comparison Details

Overall Diameter652.4 vs 668.3 mm (+15.9 mm)
Diameter Difference+2.44%
Section Width205 vs 215 mm (+10 mm)
Sidewall Height123.0 vs 118.3 mm (-4.7 mm)
Circumference2049.6 vs 2099.5 mm
Clearance Change+7.9 mm
Speedometer Error+2.44%
Revs/Mile785 vs 767

Speedometer Correction

When switching from 205/60R16 to 215/55R17, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h30.7 km/h+0.7 km/h
40 km/h41.0 km/h+1.0 km/h
50 km/h51.2 km/h+1.2 km/h
60 km/h61.5 km/h+1.5 km/h
70 km/h71.7 km/h+1.7 km/h
80 km/h81.9 km/h+1.9 km/h
90 km/h92.2 km/h+2.2 km/h
100 km/h102.4 km/h+2.4 km/h
110 km/h112.7 km/h+2.7 km/h
120 km/h122.9 km/h+2.9 km/h
130 km/h133.2 km/h+3.2 km/h

Vehicles Using These Sizes

Vehicles with 205/60R16

Vehicles with 215/55R17

Individual Tire Size Details

Practical Guidance

Switching from 205/60R16 to 215/55R17 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 2.44%, width changes by 10mm.

Speedometer error will be 2.44%. At an indicated 100 km/h, actual speed is about 102.4 km/h.

Ground clearance changes by +7.9mm per side.