295/70R18 tire size
295/70R18 is a metric size: 34.3" tall, 11.6" wide, on a 18" rim — about a 34.5x11.50R18. The sidewall is 8.1" and the tire turns 589 times per mile.
295/70R18 specs
| Overall diameter (height) | 34.26" · 870 mm |
|---|---|
| Section width | 11.61" · 295 mm |
| Sidewall height | 8.13" · 207 mm (70% of width) |
| Rim diameter | 18" |
| Circumference | 107.63" · 2.734 m |
| Revolutions per mile | 589 (366 per km) |
| Inch (flotation) equivalent | 34.5x11.50R18 |
Equivalent sizes on a 18" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 275/70R18 common | 33.16" | -3.22% | -20 mm | 58.1 mph | compare → |
| 265/70R18 common | 32.61" | -4.83% | -30 mm | 57.1 mph | compare → |
| 35x12.50R18 common | 35.00" | +2.16% | +23 mm | 61.3 mph | compare → |
| 285/65R18 common | 32.59" | -4.88% | -10 mm | 57.1 mph | compare → |
| 33x12.50R18 | 33.00" | -3.68% | +23 mm | 57.8 mph | compare → |
| 285/75R18 | 34.83" | +1.67% | -10 mm | 61.0 mph | compare → |
| 325/65R18 | 34.63" | +1.09% | +30 mm | 60.7 mph | compare → |
| 305/70R18 | 34.81" | +1.61% | +10 mm | 61.0 mph | compare → |
| 305/65R18 | 33.61" | -1.90% | +10 mm | 58.9 mph | compare → |
| 285/70R18 | 33.71" | -1.61% | -10 mm | 59.0 mph | compare → |
| 325/60R18 | 33.35" | -2.64% | +30 mm | 58.4 mph | compare → |
| 35x11.50R18 | 35.00" | +2.16% | -3 mm | 61.3 mph | calculate → |
| 295/65R18 | 33.10" | -3.39% | 0 mm | 58.0 mph | calculate → |
| 315/70R18 | 35.36" | +3.22% | +20 mm | 61.9 mph | calculate → |
| 34x12.50R18 | 34.00" | -0.76% | +23 mm | 59.5 mph | calculate → |
| 35x13.00R18 | 35.00" | +2.16% | +35 mm | 61.3 mph | calculate → |
| 35x14.50R18 | 35.00" | +2.16% | +73 mm | 61.3 mph | calculate → |
| 33x11.50R18 | 33.00" | -3.68% | -3 mm | 57.8 mph | calculate → |
| 33x13.50R18 | 33.00" | -3.68% | +48 mm | 57.8 mph | calculate → |
| 33x13.00R18 | 33.00" | -3.68% | +35 mm | 57.8 mph | calculate → |
| 235/80R18 | 32.80" | -4.25% | -60 mm | 57.4 mph | calculate → |
| 35x13.50R18 | 35.00" | +2.16% | +48 mm | 61.3 mph | calculate → |
| 33x10.50R18 | 33.00" | -3.68% | -28 mm | 57.8 mph | calculate → |
Plus / minus sizing: 17" and 19" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 315/70R17 common | 34.36" | +0.30% | +20 mm | 60.2 mph | compare → |
| 34x10.50R17 | 34.00" | -0.76% | -28 mm | 59.5 mph | calculate → |
| 275/80R17 | 34.32" | +0.18% | -20 mm | 60.1 mph | calculate → |
| 255/85R17 | 34.07" | -0.56% | -40 mm | 59.7 mph | calculate → |
Try another size against 295/70R18
Questions
What size is 295/70R18 in inches?
295/70R18 is about 34.3" tall and 11.6" wide on a 18-inch rim — roughly a 34.5x11.50R18 in inch sizing.
What does 295/70R18 mean?
295 mm section width, sidewall 70% of the width (8.13"), radial construction, 18-inch rim.
What tire sizes are equivalent to 295/70R18?
On the same 18" rim, within 3% of the diameter: 34x12.50R18 (-0.76%), 325/65R18 (+1.09%), 285/70R18 (-1.61%), 305/70R18 (+1.61%), 285/75R18 (+1.67%), 305/65R18 (-1.90%).
How many revolutions per mile does a 295/70R18 tire make?
About 589 revolutions per mile (circumference 107.6").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.