ElpiAuto295/65R18 vs 325/60R18
325/60R18 is 0.26″ (7 mm) taller than 295/65R18, a 0.8% difference in overall diameter — comfortably inside the ±3% band most fitment guides use, so it swaps straight across for gearing and the speedometer.
| Measurement | 295/65R18 | 325/60R18 | Difference | % |
|---|---|---|---|---|
| Overall diameter | 33.10″ | 33.35″ | +0.26″ | +0.8% |
| Section width | 11.61″ | 12.80″ | +1.18″ | +10.2% |
| Sidewall height | 7.55″ | 7.68″ | +0.13″ | +1.7% |
| Circumference | 103.98″ | 104.79″ | +0.80″ | +0.8% |
| Revs per mile | 609.3 | 604.7 | −4.7 | −0.8% |
| Revs per km | 378.6 | 375.7 | −2.9 | −0.8% |
Speedometer: with 295/65R18 as the original, 325/60R18 makes an indicated 60 mph really about 60.5 mph, and the axle sits ~0.13″ higher.
Reading this comparison
The overall diameter is what matters here: 325/60R18 is the taller tire. It sets ride height, gearing and how far the tire travels per revolution — which is what the speedometer and odometer count. Width and sidewall change fit and feel (a wider tire needs a wider wheel and more clearance; a shorter sidewall sharpens steering) but not the gearing.
Figures are geometric estimates from the size codes; real moulded tires vary by brand by 1–3%. Confirm load rating, wheel width and physical clearance on your vehicle before fitting. To compare any other two sizes, use the tire size comparison tool; to decode one size and see what else fits its wheel, the tire size calculator.