Jeep's 2023 and 2025 Wrangler JL owner's manuals list 245/75R17 for the Sport, 255/70R18 for the Sahara and LT285/70R17C for the Rubicon (the 2025 manual also lists LT255/75R17C and LT315/70R17C). The calculated overall diameters are 31.47, 32.06 and 32.71 inches. Jeep's manuals do not publish a maximum tire size by lift height or a recommended axle ratio.
Quick Answer
- Jeep's 2023 and 2025 Wrangler JL manuals list 245/75R17 for the Sport (31.47 in), 255/70R18 for the Sahara (32.06 in) and LT285/70R17C for the Rubicon (32.71 in); the 2025 manual also lists LT255/75R17C, LT285/75R17C and LT315/70R17C (calculated diameters).
- Going from 245/75R17 to LT285/75R17C is +2.36 in (+7.5%), so an indicated 60 mph is about 64.5 mph (calculated).
- Jeep's manuals do not list a maximum tire size by lift, wheel offset or axle ratio. Use the calculator for the arithmetic and confirm other sizes with a Jeep dealer.
Size used by calculator
285/70R17
Lug nut torque (manual)
130 ft-lb (176 N·m), M14 x 1.5
Wheel width / offset (manual)
Not listed
Generation
JL
Source
2023 and 2025 Jeep Wrangler owner's manuals, snow traction device table (tire size by trim)
Sizes listed in the manual
2023: LT285/70R17C. 2025: LT255/75R17C, LT285/70R17C, LT315/70R17C (Rubicon 392: LT315/70R17C)
Calculated Dimensions: 285/70R17
Total Height
32.71″
Sidewall
7.85″
Circumference
102.76″
Revs / Mile
617
Notes
The 2025 manual lists three sizes for the Rubicon; LT285/70R17C is the one in both manuals.
Load this model's stock size into the comparison tab:
| Model | Gen | Size (calc. default) | Height (in, calc.) | Lug Nut Torque |
|---|---|---|---|---|
| JL | 245/75R17 | 31.47″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JL | 255/75R17 | 32.06″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JL | 255/70R18 | 32.06″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JL | 285/70R17 | 32.71″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JL | 275/55R20 | 31.91″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JT | 245/75R17 | 31.47″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JT | 245/75R17 | 31.47″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| JK | 225/75R16 | 29.29″ | 95 ft-lb (130 N·m) | |
| TJ | 215/75R15 | 27.70″ | 95 ft-lb (130 N·m) | |
| WK | 235/65R17 | 29.03″ | 95 ft-lb (130 N·m) | |
| WK2 / WL | 265/60R18 | 30.52″ | 130 ft-lb (176 N·m), M14 x 1.5 | |
| KL | 225/60R17 | 27.63″ | 100 ft-lb, M12 x 1.25 |
Click any model name to load it above. Sizes and torque are from Jeep owner's manuals; height is calculated. Where a manual gives no trim breakdown, the first size listed is used as the default.
How to Use This Calculator
- 1Tab 1: Jeep Sizes: Select your Jeep model to see the tire sizes listed in the owner's manuals, the lug nut torque, and the calculated height, sidewall and revolutions per mile of the default size.
- 2Tab 2: Stock vs Upgrade: Enter a stock size and another size (metric like 285/70R17 or inch format like 35x12.5R17) plus your own axle gear ratio. The result shows the height change, speedometer error, effective gear ratio and a true-speed table.
- 3Tab 3: Gear Ratio: Enter your stock tire, the new tire and your axle gear ratio. The result is the effective ratio with the new tire and the ratio that would restore the stock effective ratio. Both are calculated.
- 4Tab 4: Find by Size: Enter a target diameter and rim size to list standard metric sizes within about 2.5% of it.
- 5Global: Toggle Metric/Imperial at the top right and use "Copy Results" to copy a summary.
Jeep OEM Tire Sizes: All Models Reference
Sizes, wheel details and lug nut torque are from Jeep owner's manuals. Height and revolutions per mile are calculated from the size. Where a manual gives no trim breakdown the row says so.
| Model | Years | Trim | Size (manual) | Height (in, calc.) | Revs/Mile (calc.) | Lug Nut Torque (manual) |
|---|---|---|---|---|---|---|
| Wrangler JL | 2023–2025 | Sport | 245/75R17 | 31.47″ | 641 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2025 | Sport (also listed) | LT285/75R17C | 33.83″ | 596 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2025 | Sport (also listed) | LT315/70R17C | 34.36″ | 587 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2023 | Willy's | LT255/75R17C | 32.06″ | 629 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2023–2025 | Sahara | 255/70R18 | 32.06″ | 629 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2023–2025 | Rubicon | LT285/70R17C | 32.71″ | 617 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2025 | Rubicon (also listed) | LT255/75R17C | 32.06″ | 629 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2025 | Rubicon and Rubicon 392 | LT315/70R17C | 34.36″ | 587 | 130 ft-lb (176 N·m) |
| Wrangler JL | 2023–2025 | High Altitude / Summit | 275/55R20 | 31.91″ | 632 | 130 ft-lb (176 N·m) |
| Gladiator JT | 2022 | Sport, Overland, Rubicon, High Altitude | 245/75R17 (17 x 7.5, 44.45 mm offset) | 31.47″ | 641 | 130 ft-lb (176 N·m) |
| Gladiator JT | 2022 | Mojave | 245/75R17 (17 x 7.5, 37.17 mm offset) | 31.47″ | 641 | 130 ft-lb (176 N·m) |
| Wrangler JK | 2008–2012 | Not broken down | P225/75R16 | 29.29″ | 689 | 95 ft-lb (130 N·m) |
| Wrangler JK | 2008–2012 | Not broken down | P245/75R16 | 30.47″ | 662 | 95 ft-lb (130 N·m) |
| Wrangler JK | 2008–2012 | Not broken down | P255/75R17 / LT255/75R17 | 32.06″ | 629 | 95 ft-lb (130 N·m) |
| Wrangler JK | 2008–2012 | Not broken down | P255/70R18 | 32.06″ | 629 | 95 ft-lb (130 N·m) |
| Wrangler JK | 2016 | Not broken down | P235/65R17 | 29.03″ | 695 | 100 ft-lb (135 N·m) |
| Wrangler TJ | 2005 | Not broken down | P215/75R15 | 27.70″ | 728 | 95 ft-lb (130 N·m) |
| Wrangler TJ | 2005 | Not broken down | P225/75R15 | 28.29″ | 713 | 95 ft-lb (130 N·m) |
| Wrangler TJ | 2005 | Not broken down | LT245/75R16 | 30.47″ | 662 | 95 ft-lb (130 N·m) |
| Grand Cherokee WK | 2005 | Not broken down | P235/65R17 | 29.03″ | 695 | 95 ft-lb (130 N·m) |
| Grand Cherokee | 2018–2025 | Laredo (WL74 only) | P245/70R17 | 30.50″ | 661 | 130 ft-lb (176 N·m) |
| Grand Cherokee | 2025 | Laredo, Limited | 265/60R18 | 30.52″ | 661 | 130 ft-lb (176 N·m) |
| Grand Cherokee | 2025 | Laredo, Limited, Overland, Summit | 265/50R20 | 30.43″ | 663 | 130 ft-lb (176 N·m) |
| Grand Cherokee | 2025 | Summit | 275/45R21XL | 30.74″ | 656 | 130 ft-lb (176 N·m) |
| Cherokee KL | 2018 | Not broken down | 215/60R17 | 27.16″ | 743 | 100 ft-lb |
| Cherokee KL | 2018 | Not broken down | 225/60R17 | 27.63″ | 730 | 100 ft-lb |
| Cherokee KL | 2018–2023 | Not broken down | 225/65R17 | 28.52″ | 707 | 100 ft-lb |
| Cherokee KL | 2018–2023 | Not broken down | 225/60R18 | 28.63″ | 704 | 100 ft-lb |
| Cherokee KL | 2018 | Not broken down | 225/55R18 | 27.74″ | 727 | 100 ft-lb |
Sizes are the ones Jeep lists in its snow traction device tables and tire sections. Bolt pattern, centre bore and axle ratios are not published in the owner's manuals, so they are not shown. Wrangler YJ, Grand Cherokee WJ and Cherokee KJ are not covered.
Jeep-Listed Size Comparisons
Each row compares two sizes that Jeep lists for the same model. The differences are calculated.
| Model | Size A | Size B | Height Change (calc.) | Change % |
|---|---|---|---|---|
| Wrangler JL Rubicon (2025) | LT255/75R17C | LT285/70R17C | +0.65″ | +2.0% |
| Wrangler JL Rubicon (2025) | LT285/70R17C | LT315/70R17C | +1.65″ | +5.1% |
| Wrangler JL Sport (2025) | 245/75R17 | LT285/75R17C | +2.36″ | +7.5% |
| Wrangler JL Sport (2025) | 245/75R17 | LT315/70R17C | +2.89″ | +9.2% |
| Grand Cherokee (2025) | 265/60R18 | 265/50R20 | -0.09″ | -0.3% |
| Grand Cherokee (2025) | 265/60R18 | 275/45R21XL | +0.22″ | +0.7% |
| Wrangler JK (2008–2012) | P225/75R16 | P245/75R16 | +1.18″ | +4.0% |
| Cherokee KL (2018) | 225/60R17 | 225/55R18 | +0.11″ | +0.4% |
Formulas & Calculations
Overall diameter from a metric size (e.g. 285/70R17): Sidewall (in) = Width × Aspect ÷ 100 ÷ 25.4 = 285 × 0.70 ÷ 25.4 = 7.85 in Overall diameter = Rim + 2 × Sidewall = 17 + 15.71 = 32.71 in Inch-format sizes (e.g. 35x12.5R17): The first number is the nominal overall diameter in inches. Circumference and revolutions per mile: Circumference = π × diameter Revs / mile = 63,360 ÷ circumference Speedometer: True speed = Indicated speed × (new diameter ÷ stock diameter) Gear ratio (your own axle ratio is needed; it is not in Jeep's owner's manuals): Effective ratio with new tire = axle ratio × (stock diameter ÷ new diameter) Ratio that restores stock effective ratio = axle ratio × (new diameter ÷ stock diameter) Ground clearance change at the axle: Change = diameter change ÷ 2 All of these are calculated values. Tire sizes, wheel width and offset (where listed) and lug nut torque come from Jeep owner's manuals.
What Jeep's Owner's Manuals Do and Do Not Say
The manuals list tire sizes by trim in the snow traction device section, with a warning that other sizes are not recommended with those devices and that mixing tire sizes or types between axles can cause unpredictable handling. They give lug nut thread size and torque. They do not give lift limits, fender clearance, axle ratios, bolt pattern or advice for fitting larger tires, so this page treats those as unknown instead of estimating them. For the calculable parts, the effective gear ratio for a new tire size, the flotation size converter and the Jeep tire guide are on their own pages.