265/70R17 tire size: 31.61 in tall
Diameter, sidewall, width and revs per mile for 265/70R17, the common sizes within 3% of its diameter, and what each one does to the speedometer.
265/70R17, in short: 31.61 in (803 mm) tall and 265 mm (10.43 in) wide, with a 7.30 in (185.5 mm) sidewall, for a 17-inch wheel. Circumference is 99.29 in, so it turns about 638 times per mile (calculated from the nominal size).
Calculated from the size: sidewall = 265 × 70% = 185.50 mm; diameter = 2 × 7.303 in + 17 in; revs per mile = 63,360 ÷ (π × diameter).
Sizes within 3% of 265/70R17
10 common sizes come within ±3% of 31.61 in: 5 on the same 17-inch wheel, 3 plus-size and 2 minus-size. The last column is what the speedometer shows when the vehicle, set up for 265/70R17, is doing a true 60 mph.
| Size | Fit | Diameter | Difference | Width | Sidewall | Revs/mile (calc.) | Speedometer at a true 60 |
|---|---|---|---|---|---|---|---|
| 265/70R17 | This size | 31.61 in | - | 265 mm | 7.30 in | 638 | 60.0 mph |
| 265/75R16 | Minus 1 | 31.65 in | +0.14% | 265 mm | 7.82 in | 637 | 59.9 mph |
| 235/85R16 | Minus 1 | 31.73 in | +0.39% | 235 mm | 7.86 in | 636 | 59.8 mph |
| 255/70R17 | Same wheel | 31.06 in | -1.74% | 255 mm | 7.03 in | 649 | 61.1 mph |
| 245/75R17 | Same wheel | 31.47 in | -0.44% | 245 mm | 7.23 in | 641 | 60.3 mph |
| 235/80R17 | Same wheel | 31.80 in | +0.62% | 235 mm | 7.40 in | 634 | 59.6 mph |
| 255/75R17 | Same wheel | 32.06 in | +1.43% | 255 mm | 7.53 in | 629 | 59.2 mph |
| 275/70R17 | Same wheel | 32.16 in | +1.74% | 275 mm | 7.58 in | 627 | 59.0 mph |
| 255/65R18 | Plus 1 | 31.05 in | -1.76% | 255 mm | 6.53 in | 650 | 61.1 mph |
| 265/65R18 | Plus 1 | 31.56 in | -0.14% | 265 mm | 6.78 in | 639 | 60.1 mph |
| 275/65R18 | Plus 1 | 32.07 in | +1.48% | 275 mm | 7.04 in | 629 | 59.1 mph |
A taller tire makes the speedometer read low, a shorter one high. Plus-sizing keeps the diameter close by trading sidewall for wheel. Any replacement needs a load index at least as high as the vehicle's tire placard calls for, and a wheel width the tire is approved for.
265/70R17 compared
265/70R17 side by side with 285/70R17 and 275/70R17: dimension by dimension, and what the swap does to the speedometer.
265/70R17 vs 285/70R17
+3.49% diameter| 265/70R17 | 285/70R17 | Difference | |
|---|---|---|---|
| Overall diameter | 31.61 in | 32.71 in | +1.10 in (+3.5%) |
| Section width | 265 mm | 285 mm | +20 mm |
| Sidewall height | 7.30 in | 7.85 in | +0.55 in |
| Wheel diameter | 17 in | 17 in | +0 in |
| Circumference | 99.3 in | 102.8 in | +3.5 in |
| Revs per mile (calc.) | 638 | 617 | -22 |
285/70R17 is 3.5% taller than 265/70R17. At a true 60 mph the speedometer shows 58.0 mph (it reads low), and when it shows 60 you're doing 62.1 mph.
265/70R17 vs 275/70R17
+1.74% diameter| 265/70R17 | 275/70R17 | Difference | |
|---|---|---|---|
| Overall diameter | 31.61 in | 32.16 in | +0.55 in (+1.7%) |
| Section width | 265 mm | 275 mm | +10 mm |
| Sidewall height | 7.30 in | 7.58 in | +0.28 in |
| Wheel diameter | 17 in | 17 in | +0 in |
| Circumference | 99.3 in | 101.0 in | +1.7 in |
| Revs per mile (calc.) | 638 | 627 | -11 |
275/70R17 is 1.7% taller than 265/70R17. At a true 60 mph the speedometer shows 59.0 mph (it reads low), and when it shows 60 you're doing 61.0 mph.
Which vehicles come with 265/70R17
Vehicles sold in the US that have 265/70R17 as the standard size on these trims, with the page that lists it. The tire placard on the driver's door edge or post has the size, and the load and inflation, for the exact vehicle.
- Ford F-150 2025 model year · XL 4x4Mavis Tire OE fitment page, 2025 Ford F-150 XL 4x4 (size flagged standard 'S')
- Toyota 4Runner 2024 model year · SR5, SR5 Premium, TRD Off-Road, TRD ProMavis Tire OE fitment page, 2024 Toyota 4Runner SR5 (size flagged standard 'S')
- Toyota Tacoma 2026 model year · TRD PreRunner (all-terrain), SR5 configurationsToyota.com 2026 Tacoma specifications (wheels/tires marked standard)
Vehicles mostly picked from Carscoops: 2025 U.S. car sales, full-year top 25 (Car and Driver data, January 2026).
Questions about 265/70R17 tires
How tall is a 265/70R17 tire?
What is 265/70R17 in inches?
How many revolutions per mile does a 265/70R17 tire make?
What size can replace 265/70R17?
265/70R17 vs 285/70R17: what's the difference?
Which vehicles come with 265/70R17 tires?
How these numbers are worked out
- NHTSA: Tire safety, everything rides on it (reading the sidewall and the placard)
- Tire Rack: How do I calculate tire dimensions?
- Jalopnik: What the 3% rule means for your tires (April 2026)
Checked October 2026. Dimensions are nominal, calculated from the size designation. A real tire's diameter, width and revs per mile vary by brand, tread depth, rim width and load, so check the maker's spec sheet.
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