285/75R17 vs 295/70R17
295/70R17 is 0.57 inches shorter than 285/75R17 and 10 mm (0.4 in) wider.
−1.7% height. Inside the usual 3% rule for a swap.
| Measurement | 285/75R17 | 295/70R17 | Difference |
|---|---|---|---|
| Overall height | 33.8 in | 33.3 in | −0.57 in (−1.7%) |
| Section width | 11.2 in | 11.6 in | +0.39 in (+10 mm) |
| Sidewall height | 8.4 in | 8.1 in | −0.29 in |
| Circumference | 106.3 in | 104.5 in | −1.8 in |
| Revolutions per mile | 596 | 606 | +10 |
| Ride height | −0.29 in |
Speedometer
With 295/70R17 fitted, a speedometer set up for 285/75R17 shows the first number when you are really doing the second.
- 3029.5 mph
- 4544.2 mph
- 6059.0 mph
- 7573.7 mph
The two sizes
285/75R17 is 33.8 inches tall with a 8.4-inch sidewall. 295/70R17 is 33.3 inches tall with a 8.1-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, 285/75R17 or 295/70R17?
285/75R17 is taller: 33.8 inches against 33.3. 295/70R17 is wider, at 295 mm.
Can I replace 285/75R17 with 295/70R17?
On height, yes: the difference is 1.7%, inside the usual 3% rule. Check that the extra width clears the suspension and suits your rim width.
How much does the speedometer change?
With 295/70R17 on a vehicle set up for 285/75R17, the speedometer shows 60 mph at a true 59.0 mph, and 70 at 68.8.