265/60R18 vs 265/65R18
265/65R18 is 1.04 inches taller than 265/60R18 and the same width.
+3.4% height. Outside the usual 3% rule: the speedometer and ride height change noticeably.
| Measurement | 265/60R18 | 265/65R18 | Difference |
|---|---|---|---|
| Overall height | 30.5 in | 31.6 in | +1.04 in (+3.4%) |
| Section width | 10.4 in | 10.4 in | ±0.00 in (±0 mm) |
| Sidewall height | 6.3 in | 6.8 in | +0.52 in |
| Circumference | 95.9 in | 99.2 in | +3.3 in |
| Revolutions per mile | 661 | 639 | −22 |
| Ride height | +0.52 in |
Speedometer
With 265/65R18 fitted, a speedometer set up for 265/60R18 shows the first number when you are really doing the second.
- 3031.0 mph
- 4546.5 mph
- 6062.1 mph
- 7577.6 mph
The two sizes
265/60R18 is 30.5 inches tall with a 6.3-inch sidewall. 265/65R18 is 31.6 inches tall with a 6.8-inch sidewall. A taller sidewall rides softer and gives more ground clearance; a shorter one turns in more sharply. Try other pairs in the tire size calculator.
More comparisons
Questions
Which is bigger, 265/60R18 or 265/65R18?
265/65R18 is taller: 31.6 inches against 30.5. They are the same width.
Can I replace 265/60R18 with 265/65R18?
It is 3.4% taller, outside the usual 3% rule, so expect a noticeable speedometer change and check for rubbing at full lock and full suspension travel.
How much does the speedometer change?
With 265/65R18 on a vehicle set up for 265/60R18, the speedometer shows 60 mph at a true 62.1 mph, and 70 at 72.4.