325/70R17 tire size
325/70R17 is a metric size: 34.9" tall, 12.8" wide, on a 17" rim — about a 35x13.00R17. The sidewall is 9.0" and the tire turns 578 times per mile.
325/70R17 specs
| Overall diameter (height) | 34.91" · 887 mm |
|---|---|
| Section width | 12.80" · 325 mm |
| Sidewall height | 8.96" · 228 mm (70% of width) |
| Rim diameter | 17" |
| Circumference | 109.68" · 2.786 m |
| Revolutions per mile | 578 (359 per km) |
| Inch (flotation) equivalent | 35x13.00R17 |
Equivalent sizes on a 17" 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 | |
|---|---|---|---|---|---|
| 35x12.50R17 common | 35.00" | +0.25% | -7 mm | 60.1 mph | calculate → |
| 315/70R17 common | 34.36" | -1.58% | -10 mm | 59.1 mph | calculate → |
| 295/70R17 | 33.26" | -4.74% | -30 mm | 57.2 mph | calculate → |
| 285/75R17 | 33.83" | -3.10% | -40 mm | 58.1 mph | calculate → |
| 305/70R17 | 33.81" | -3.16% | -20 mm | 58.1 mph | calculate → |
| 35x11.50R17 | 35.00" | +0.25% | -33 mm | 60.1 mph | calculate → |
| 35x14.50R17 | 35.00" | +0.25% | +43 mm | 60.1 mph | calculate → |
| 34x10.50R17 | 34.00" | -2.62% | -58 mm | 58.4 mph | calculate → |
| 35x13.50R17 | 35.00" | +0.25% | +18 mm | 60.1 mph | calculate → |
| 36x13.50R17 | 36.00" | +3.11% | +18 mm | 61.9 mph | calculate → |
| 35x10.50R17 | 35.00" | +0.25% | -58 mm | 60.1 mph | calculate → |
| 275/80R17 | 34.32" | -1.69% | -50 mm | 59.0 mph | calculate → |
| 255/85R17 | 34.07" | -2.42% | -70 mm | 58.5 mph | calculate → |
| 36x12.50R17 | 36.00" | +3.11% | -7 mm | 61.9 mph | calculate → |
| 355/70R17 | 36.57" | +4.74% | +30 mm | 62.8 mph | calculate → |
Plus / minus sizing: 16" and 18" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 35x12.50R18 common | 35.00" | +0.25% | -7 mm | 60.1 mph | calculate → |
| 315/75R16 | 34.60" | -0.89% | -10 mm | 59.5 mph | calculate → |
| 285/75R18 | 34.83" | -0.24% | -40 mm | 59.9 mph | calculate → |
| 325/65R18 | 34.63" | -0.80% | 0 mm | 59.5 mph | calculate → |
| 305/70R18 | 34.81" | -0.29% | -20 mm | 59.8 mph | calculate → |
| 35x12.50R16 | 35.00" | +0.25% | -7 mm | 60.1 mph | calculate → |
| 35x11.50R18 | 35.00" | +0.25% | -33 mm | 60.1 mph | calculate → |
| 35x10.50R16 | 35.00" | +0.25% | -58 mm | 60.1 mph | calculate → |
| 35x14.50R16 | 35.00" | +0.25% | +43 mm | 60.1 mph | calculate → |
| 35x11.50R16 | 35.00" | +0.25% | -33 mm | 60.1 mph | calculate → |
| 35x13.00R18 | 35.00" | +0.25% | +5 mm | 60.1 mph | calculate → |
| 35x14.50R18 | 35.00" | +0.25% | +43 mm | 60.1 mph | calculate → |
| 35x15.00R16 | 35.00" | +0.25% | +56 mm | 60.1 mph | calculate → |
| 35x16.00R16 | 35.00" | +0.25% | +81 mm | 60.1 mph | calculate → |
| 35x13.50R18 | 35.00" | +0.25% | +18 mm | 60.1 mph | calculate → |
| 375/65R16 | 35.19" | +0.80% | +50 mm | 60.5 mph | calculate → |
Try another size against 325/70R17
Questions
What size is 325/70R17 in inches?
325/70R17 is about 34.9" tall and 12.8" wide on a 17-inch rim — roughly a 35x13.00R17 in inch sizing.
What does 325/70R17 mean?
325 mm section width, sidewall 70% of the width (8.96"), radial construction, 17-inch rim.
What tire sizes are equivalent to 325/70R17?
On the same 17" rim, within 3% of the diameter: 35x10.50R17 (+0.25%), 35x11.50R17 (+0.25%), 35x12.50R17 (+0.25%), 35x13.50R17 (+0.25%), 35x14.50R17 (+0.25%), 315/70R17 (-1.58%).
How many revolutions per mile does a 325/70R17 tire make?
About 578 revolutions per mile (circumference 109.7").
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.