245/50R20 vs 245/60R18
245/60R18 is 2.0 mm shorter than 245/50R20 in overall diameter (−0.3%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 245/60R18 fitted, the speedometer reads 100 km/h when you are doing 99.7 km/h.
Dimensions side by side
| 245/50R20 | 245/60R18 | |
|---|---|---|
| Overall diameter | 753 mm (29.6″) | 751 mm (29.6″) |
| Section width | 245 mm | 245 mm |
| Sidewall height | 123 mm | 147 mm |
| Rim | 20″ | 18″ |
| Revolutions per km | 423 | 424 |
| In stock | 53 tires from $178.00 | 66 tires from $150.00 |
What changes
- Overall diameter: 245/60R18 is 2.0 mm shorter (−0.3%).
- Speedometer: reads 100 km/h at an actual 99.7 km/h with 245/60R18.
- 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 245/50R20
Vehicles that use 245/60R18
See every alternate size for 245/50R20
Frequently asked questions
Can I use 245/60R18 instead of 245/50R20?
Usually, yes: 245/60R18 is within 3% of the overall diameter of 245/50R20 (−0.3%). 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 245/50R20 and 245/60R18?
With 245/60R18 instead of 245/50R20, the speedometer shows 100 km/h when you are actually doing 99.7 km/h.
Which vehicles came with both 245/50R20 and 245/60R18?
Both sizes were original equipment, on different trims or packages, on the 2020–2024 Hyundai Palisade, 2019–2023 Lincoln Nautilus, 2019–2022 Subaru Ascent, 2020–2022 Kia Telluride, 2020–2021 Honda Pilot, 2008–2017, 2019 Ford Edge.