235/55R19 vs 245/50R20Tire Size Comparison

Safe

The 1.6% diameter difference is within the accepted 3% tolerance.

235/55R19741mm dia245/50R20753mm dia+5.9mm

Comparison Details

Overall Diameter741.1 vs 753.0 mm (+11.9 mm)
Diameter Difference+1.61%
Section Width235 vs 245 mm (+10 mm)
Sidewall Height129.3 vs 122.5 mm (-6.8 mm)
Circumference2328.2 vs 2365.6 mm
Clearance Change+5.9 mm
Speedometer Error+1.61%
Revs/Mile691 vs 680

Speedometer Correction

When switching from 235/55R19 to 245/50R20, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h30.5 km/h+0.5 km/h
40 km/h40.6 km/h+0.6 km/h
50 km/h50.8 km/h+0.8 km/h
60 km/h61.0 km/h+1.0 km/h
70 km/h71.1 km/h+1.1 km/h
80 km/h81.3 km/h+1.3 km/h
90 km/h91.4 km/h+1.4 km/h
100 km/h101.6 km/h+1.6 km/h
110 km/h111.8 km/h+1.8 km/h
120 km/h121.9 km/h+1.9 km/h
130 km/h132.1 km/h+2.1 km/h

Vehicles Using These Sizes

Vehicles with 235/55R19

2025 Audi Q5Premium Plus 45 TFSI quattro2024 Audi Q5Premium Plus 45 TFSI quattro2023 Audi Q5Premium Plus 45 TFSI quattro2022 Audi Q5Premium Plus 45 TFSI quattro2025 Audi Q3Prestige 40 TFSI quattro2024 Audi Q3Prestige 40 TFSI quattro2021 Audi Q3S line Premium Plus2020 Audi Q3S line Premium Plus2026 Chevrolet EquinoxRS2026 Chevrolet EquinoxACTIV2024 Dodge ChargerGT2023 Dodge ChargerGT2022 Dodge ChargerGT2021 Dodge ChargerGT2020 Dodge ChargerGT2025 Genesis GV702.5T Standard2024 Genesis GV702.5T Standard2023 Genesis GV702.5T Standard2022 Genesis GV702.5T Standard2021 Genesis GV702.5T Standard2026 Honda CR-VSport Touring Hybrid2025 Honda CR-VEX-L/Sport Touring2024 Honda CR-VEX-L/Sport Touring2023 Honda CR-VEX-L/Sport Touring2025 Hyundai Santa FeSE2024 Hyundai Santa FeXRT/Limited2023 Hyundai Santa FeXRT/Limited2022 Hyundai Santa FeLimited/Calligraphy2021 Hyundai Santa FeLimited/Calligraphy2020 Hyundai Santa FeLimited2025 Kia SportageEX/SX2025 Kia SportageX-Line/X-Pro2024 Kia SportageEX/SX2024 Kia SportageX-Line/X-Pro2023 Kia SportageEX/SX2023 Kia SportageX-Line/X-Pro2025 Kia SorentoEX/SX2025 Kia SorentoX-Line/SX Prestige2024 Kia SorentoEX/SX/X-Line/SX Prestige2023 Kia SorentoSX/X-Line/SX Prestige2022 Kia SorentoSX/X-Line/SX Prestige2021 Kia SorentoSX/SX Prestige2020 Kia SorentoSX/SX Prestige2025 Nissan RogueSL/Platinum2024 Nissan RogueSL/Platinum2023 Nissan RogueSL/Platinum2022 Nissan RogueSL/Platinum2021 Nissan RogueSL/Platinum2025 Volvo XC40Plus B5 AWD2024 Volvo XC40Plus B5 AWD

Vehicles with 245/50R20

2021 Honda PilotEX-L/Touring/Elite2020 Honda PilotEX-L/Touring/Elite2025 Hyundai PalisadeXRT/Limited/Calligraphy2024 Hyundai PalisadeXRT/Limited/Calligraphy2023 Hyundai PalisadeXRT/Limited/Calligraphy2022 Hyundai PalisadeLimited/Calligraphy2021 Hyundai PalisadeLimited/Calligraphy2020 Hyundai PalisadeLimited

Individual Tire Size Details

235/55R19
Full specifications, compatible vehicles, and alternatives
245/50R20
Full specifications, compatible vehicles, and alternatives

Practical Guidance

Switching from 235/55R19 to 245/50R20 is within the industry-accepted 3% diameter tolerance. Your speedometer, ABS, and traction control should function normally. Note: these sizes require different rim diameters (19" vs 20"), 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 1.61%, width changes by 10mm.

Speedometer error will be 1.61%. At an indicated 100 km/h, actual speed is about 101.6 km/h.

Ground clearance changes by +5.9mm per side.