SidewallerTire & wheel calculators

215/45R17 vs 215/50R17

215/50R17 is 3.4% taller (+0.85 in) and the same width than 215/45R17.

Caution
Check before you buy

215/50R17 is 3.4% taller than 215/45R17. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

215/45R17215/50R17Change
Diameter24.62″25.46″+0.85″+3.4%
Width8.46″8.46″0.00″0.0%
Sidewall3.81″4.23″+0.42″+11.1%
Circumference77.3″80.0″+2.7″+3.4%
Wheel17″17″Same
Revs per mile819792−27
SideTread
215/45R17215/50R17
Speedometer shows 60 mph62.1mph

Real speed on 215/50R17.

Ground clearance+0.42in

Change in height under the axle.

Width per side0.00in

On the same wheel, split inboard and outboard.

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215/45R17 or 215/50R17?

Can I use 215/50R17 instead of 215/45R17?

215/50R17 is 3.4% taller than 215/45R17. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock. Also match or beat the original load index and speed rating, and check that the wheel width suits the new tire.

Will my speedometer be off?

At an indicated 60 mph on 215/50R17 you are really doing 62.1 mph if the speedometer was set up for 215/45R17. Going the other way, 215/45R17 would make it read 58.0 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.42 in (+11 mm) under the axle.

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