275/35R22 vs 275/45R20
275/45R20 is 5.0 mm taller than 275/35R22 in overall diameter (+0.7%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 275/45R20 fitted, the speedometer reads 100 km/h when you are doing 100.7 km/h.
Dimensions side by side
| 275/35R22 | 275/45R20 | |
|---|---|---|
| Overall diameter | 751 mm (29.6″) | 756 mm (29.8″) |
| Section width | 275 mm | 275 mm |
| Sidewall height | 96 mm | 124 mm |
| Rim | 22″ | 20″ |
| Revolutions per km | 424 | 421 |
| In stock | 7 tires from $489.00 | 50 tires from $166.00 |
What changes
- Overall diameter: 275/45R20 is 5.0 mm taller (+0.7%).
- Speedometer: reads 100 km/h at an actual 100.7 km/h with 275/45R20.
- Wheel size changes from 22″ to 20″: 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 275/35R22
Vehicles that use 275/45R20
See every alternate size for 275/35R22
Frequently asked questions
Can I use 275/45R20 instead of 275/35R22?
Usually, yes: 275/45R20 is within 3% of the overall diameter of 275/35R22 (+0.7%). 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 275/35R22 and 275/45R20?
With 275/45R20 instead of 275/35R22, the speedometer shows 100 km/h when you are actually doing 100.7 km/h.
Which vehicles came with both 275/35R22 and 275/45R20?
Both sizes were original equipment, on different trims or packages, on the 2016–2024 Volvo XC90, 2019–2024 BMW X5, 2020–2024 BMW X6.