225/50R17 vs 235/45R17

225/50R17 vs 235/45R17: Comparision Size Chart


225/50R17 (Tire 1)235/45R17 (Tire 2)Difference
Tire Size In Inches25.9X8.9R1725.3X9.3R17
Diameter25.86"656.8 mm25.33"643.3 mm-2.06%
Tread Width8.9225 mm9.3"235 mm4.44%
Rim Diameter17"431.8 mm17"431.8 mm0%
Sidewall Height4.43"112.5 mm4.16"105.75 mm-6%
Circumference81.24"2063.4 mm79.58"2063.4 mm-2.06%
Revs/Mile779.91 Revs/Mile796.18 Revs/Mile+16.27
Revs/Kilometer484.61 Revs/Mile494.72 Revs/Mile+10.11
Tire 1 Front View
8.9"
25.86"
Tire 2 Front View
8.9"
25.33"
Tire 1 Side View
Tire 1 Wheel
Circumference 1
81.24"
17"
4.43"
779.91 Revs/Mile
Tire 2 Side View
Tire 2 Wheel
Circumference 2
79.58"
17"
4.16"
796.18 Revs/Mile

Speedometer Error

225/50R17 (Mph)235/45R17 (Mph)
2019.59
3534.28
5048.97
6563.66
8078.35
9088.15
10097.94

235/45R17 vs 225/50R17: Gas Mileage & Performance Comparison

* Below is a comparison table. Assuming 2 tires of the same manufacturer, material and tested on the same road conditions.

225/50R17235/45R17
Wet/Snowy RoadsReduced TractionBetter Traction
Rough TerrainSmoother RideReduced Stability
Handling/SteeringLess ResponsiveBetter
Gas MileageBetterGood
Road NoiseQuieterQuiet
CostMore ExpensiveLess Expensive

Can You Replace The 225/50R17 With The 235/45R17?

Yes, both tires have the same rim diameter, and the 235/45R17 has a smaller overall diameter than the 225/50R17 which is only 2.1% (0.53-inch), it is the allowable margin (±3%).

When you want to replace a different tire size, as a rule, for the rim diameter, you will need to be sure that your tires and rims are an exact match, e.g. a 225/50R17 tire will only fit on a 17″ diameter rim.

You Can check our tools and charts below to find your size:

*Disclaimer: The information provided on the tire size is for general informational purposes only. We recommend that you consult a certified tire specialist or National Highway Traffic Safety Administration (NHTSA) sets specific guidelines for tires used on vehicles.


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Jamie Hicks

Sullivan Kane

Tire Technician at TireSizesCalculator

Sullivan is a Tire Technician specializing in tire repair at TireSizesCalculator. With over 6 years of experience in the industry, Sullivan has become an expert in tire repair, maintenance & installation.


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