215/65R17 vs 225/60R18Tire Size Comparison

Safe

The 2.2% diameter difference is within the accepted 3% tolerance.

215/65R17711mm dia225/60R18727mm dia+8.0mm

Comparison Details

Overall Diameter711.3 vs 727.2 mm (+15.9 mm)
Diameter Difference+2.24%
Section Width215 vs 225 mm (+10 mm)
Sidewall Height139.8 vs 135.0 mm (-4.8 mm)
Circumference2234.6 vs 2284.6 mm
Clearance Change+8.0 mm
Speedometer Error+2.24%
Revs/Mile720 vs 704

Speedometer Correction

When switching from 215/65R17 to 225/60R18, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h30.7 km/h+0.7 km/h
40 km/h40.9 km/h+0.9 km/h
50 km/h51.1 km/h+1.1 km/h
60 km/h61.3 km/h+1.3 km/h
70 km/h71.6 km/h+1.6 km/h
80 km/h81.8 km/h+1.8 km/h
90 km/h92.0 km/h+2.0 km/h
100 km/h102.2 km/h+2.2 km/h
110 km/h112.5 km/h+2.5 km/h
120 km/h122.7 km/h+2.7 km/h
130 km/h132.9 km/h+2.9 km/h

Vehicles Using These Sizes

Vehicles with 215/65R17

2025 Buick Encore GXPreferred2024 Buick Encore GXPreferred2023 Buick Encore GXPreferred2022 Buick Encore GXPreferred2021 Buick Encore GXPreferred2020 Buick Encore GXPreferred2024 Dodge ChargerSXT2023 Dodge ChargerSXT2022 Dodge ChargerSXT2021 Dodge ChargerSXT2020 Dodge ChargerSXT2023 Ford MustangEcoBoost2022 Ford MustangEcoBoost2021 Ford MustangEcoBoost2020 Ford MustangEcoBoost

Vehicles with 225/60R18

2025 Audi Q3Premium Plus 40 TFSI quattro2024 Audi Q3Premium Plus 40 TFSI quattro2023 Audi Q3Premium Plus 40 TFSI quattro2022 Audi Q3Premium Plus 40 TFSI quattro2025 Ford MaverickLariat/Tremor2024 Ford MaverickLariat/Tremor2023 Ford MaverickLariat/Tremor2022 Ford MaverickLariat2026 Ford EscapeST-Line / ST-Line Select (18")2025 Lincoln CorsairStandard2024 Lincoln CorsairStandard2023 Lincoln CorsairStandard2022 Lincoln CorsairStandard2021 Lincoln CorsairStandard2025 Subaru OutbackLimited/Touring2024 Subaru OutbackLimited/Touring2023 Subaru OutbackLimited/Touring2022 Subaru OutbackLimited/Touring2021 Subaru OutbackLimited/Touring2020 Subaru OutbackLimited/Touring2025 Toyota RAV4XLE2025 Toyota RAV4XLE Premium2025 Toyota RAV4Adventure/TRD Off-Road2024 Toyota RAV4XLE2024 Toyota RAV4Adventure/TRD Off-Road2023 Toyota RAV4XLE/XLE Premium2023 Toyota RAV4Adventure/TRD Off-Road2022 Toyota RAV4XLE/XLE Premium2022 Toyota RAV4TRD Off-Road2021 Toyota RAV4XLE/XLE Premium2021 Toyota RAV4Adventure/TRD Off-Road2020 Toyota RAV4XLE/Limited2020 Toyota RAV4TRD Off-Road2025 Volvo XC40Core B4 FWD2024 Volvo XC40Core B4 FWD2023 Volvo XC40B4 FWD2022 Volvo XC40T4 Momentum2021 Volvo XC40T4 Momentum2020 Volvo XC40T4 Momentum

Individual Tire Size Details

215/65R17
Full specifications, compatible vehicles, and alternatives
225/60R18
Full specifications, compatible vehicles, and alternatives

Practical Guidance

Switching from 215/65R17 to 225/60R18 is within the industry-accepted 3% diameter tolerance. Your speedometer, ABS, and traction control should function normally. Note: these sizes require different rim diameters (17" vs 18"), 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 2.24%, width changes by 10mm.

Speedometer error will be 2.24%. At an indicated 100 km/h, actual speed is about 102.2 km/h.

Ground clearance changes by +8.0mm per side.