245/40R18 vs 265/35R19
265/35R19 is 15.0 mm taller than 245/40R18 in overall diameter (+2.3%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 265/35R19 fitted, the speedometer reads 100 km/h when you are doing 102.3 km/h.
Dimensions side by side
| 245/40R18 | 265/35R19 | |
|---|---|---|
| Overall diameter | 653 mm (25.7″) | 668 mm (26.3″) |
| Section width | 245 mm | 265 mm |
| Sidewall height | 98 mm | 93 mm |
| Rim | 18″ | 19″ |
| Revolutions per km | 487 | 477 |
| In stock | 62 tires from $119.00 | 16 tires from $254.00 |
What changes
- Overall diameter: 265/35R19 is 15.0 mm taller (+2.3%).
- Speedometer: reads 100 km/h at an actual 102.3 km/h with 265/35R19.
- 265/35R19 is 20 mm wider, so check clearance and the recommended rim width.
- Wheel size changes from 18″ to 19″: 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 245/40R18
Vehicles that use 265/35R19
See every alternate size for 245/40R18
Frequently asked questions
Can I use 265/35R19 instead of 245/40R18?
Usually, yes: 265/35R19 is within 3% of the overall diameter of 245/40R18 (+2.3%). 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 245/40R18 and 265/35R19?
With 265/35R19 instead of 245/40R18, the speedometer shows 100 km/h when you are actually doing 102.3 km/h.
Which vehicles came with both 245/40R18 and 265/35R19?
Both sizes were original equipment, on different trims or packages, on the 2016–2021 Mercedes-Benz C63, 2008–2013 BMW M3, 2006–2008 Nissan 350Z.