235/55R19 vs 255/45R19Tire Size Comparison

Use Caution

The 3.9% diameter difference exceeds 3% and may affect speedometer accuracy.

235/55R19741mm dia255/45R19712mm dia-14.5mm

Comparison Details

Overall Diameter741.1 vs 712.1 mm (-29.0 mm)
Diameter Difference-3.91%
Section Width235 vs 255 mm (+20 mm)
Sidewall Height129.3 vs 114.8 mm (-14.5 mm)
Circumference2328.2 vs 2237.1 mm
Clearance Change-14.5 mm
Speedometer Error-3.91%
Revs/Mile691 vs 719

Speedometer Correction

When switching from 235/55R19 to 255/45R19, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h28.8 km/h-1.2 km/h
40 km/h38.4 km/h-1.6 km/h
50 km/h48.0 km/h-2.0 km/h
60 km/h57.7 km/h-2.3 km/h
70 km/h67.3 km/h-2.7 km/h
80 km/h76.9 km/h-3.1 km/h
90 km/h86.5 km/h-3.5 km/h
100 km/h96.1 km/h-3.9 km/h
110 km/h105.7 km/h-4.3 km/h
120 km/h115.3 km/h-4.7 km/h
130 km/h124.9 km/h-5.1 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 255/45R19

2026 Tesla Model YLong Range RWD2026 Tesla Model YLong Range AWD2025 Tesla Model YStandard Range/Long Range2024 Tesla Model YStandard Range/Long Range2023 Tesla Model YStandard Range/Long Range2022 Tesla Model YLong Range2021 Tesla Model YStandard Range/Long Range2020 Tesla Model YStandard Range/Long Range2025 Volvo XC60Plus B5 AWD2024 Volvo XC60Plus B5 AWD

Individual Tire Size Details

235/55R19
Full specifications, compatible vehicles, and alternatives
255/45R19
Full specifications, compatible vehicles, and alternatives

Practical Guidance

The 3.9% diameter difference between 235/55R19 and 255/45R19 exceeds the standard 3% tolerance. While physically possible, this change will cause noticeable speedometer error and may affect ABS and traction control calibration. Consult a tire professional before making this switch.

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

Use Caution. The overall diameter differs by -3.91%, width changes by 20mm.

Speedometer error will be -3.91%. At an indicated 100 km/h, actual speed is about 96.1 km/h.

Ground clearance changes by -14.5mm per side.