235/50R20 vs 235/60R18
235/60R18 is 4.0 mm shorter than 235/50R20 in overall diameter (−0.5%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 235/60R18 fitted, the speedometer reads 100 km/h when you are doing 99.5 km/h.
Dimensions side by side
| 235/50R20 | 235/60R18 | |
|---|---|---|
| Overall diameter | 743 mm (29.3″) | 739 mm (29.1″) |
| Section width | 235 mm | 235 mm |
| Sidewall height | 118 mm | 141 mm |
| Rim | 20″ | 18″ |
| Revolutions per km | 428 | 431 |
| In stock | 22 tires from $179.00 | 102 tires from $145.00 |
What changes
- Overall diameter: 235/60R18 is 4.0 mm shorter (−0.5%).
- Speedometer: reads 100 km/h at an actual 99.5 km/h with 235/60R18.
- Wheel size changes from 20″ to 18″: you need wheels in the new size.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 235/50R20
Vehicles that use 235/60R18
See every alternate size for 235/50R20
Frequently asked questions
Can I use 235/60R18 instead of 235/50R20?
Usually, yes: 235/60R18 is within 3% of the overall diameter of 235/50R20 (−0.5%). Use wheels of the right size and width, match or exceed the original load index, and check clearance at full steering lock.
How much does the speedometer change between 235/50R20 and 235/60R18?
With 235/60R18 instead of 235/50R20, the speedometer shows 100 km/h when you are actually doing 99.5 km/h.
Which vehicles came with both 235/50R20 and 235/60R18?
Both sizes were original equipment, on different trims or packages, on the 2020–2024 Land Rover Discovery Sport, 2020–2024 Land Rover Range Rover Evoque, 2022–2024 Lexus NX, 2023–2024 Lexus RZ, 2020 Jaguar E-Pace.