245/35R20 vs 295/30R20
295/30R20 is 5.0 mm taller than 245/35R20 in overall diameter (+0.7%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 295/30R20 fitted, the speedometer reads 100 km/h when you are doing 100.7 km/h.
Dimensions side by side
| 245/35R20 | 295/30R20 | |
|---|---|---|
| Overall diameter | 680 mm (26.8″) | 685 mm (27.0″) |
| Section width | 245 mm | 295 mm |
| Sidewall height | 86 mm | 89 mm |
| Rim | 20″ | 20″ |
| Revolutions per km | 468 | 465 |
| In stock | 23 tires from $129.00 | 9 tires from $340.00 |
What changes
- Overall diameter: 295/30R20 is 5.0 mm taller (+0.7%).
- Speedometer: reads 100 km/h at an actual 100.7 km/h with 295/30R20.
- 295/30R20 is 50 mm wider, so check clearance and the recommended rim width.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 245/35R20
Vehicles that use 295/30R20
See every alternate size for 245/35R20
Frequently asked questions
Can I use 295/30R20 instead of 245/35R20?
Usually, yes: 295/30R20 is within 3% of the overall diameter of 245/35R20 (+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 245/35R20 and 295/30R20?
With 295/30R20 instead of 245/35R20, the speedometer shows 100 km/h when you are actually doing 100.7 km/h.
Which vehicles came with both 245/35R20 and 295/30R20?
Both sizes were original equipment, on different trims or packages, on the 2020–2024 Porsche 718, 2022–2024 Lotus Emira, 2012–2016 Porsche 911, 2013–2016 Aston Martin DB9, 2016 Porsche Cayman, 2008–2013 Maserati Quattroporte.