Lexus Tire Guide
Factory tire sizes for the ES, IS, NX, RX, GX and LX from Lexus owner's manuals, plus Lexus's rules on tire sizes, mixing tires, snow tires and run-flats.
Quick answer
Lexus's owner's manuals list the factory tire sizes for each model and say not to use tire sizes other than those it recommends, not to mix tires of different makes, models or tread patterns, and to replace all four tires when installing snow tires. Check the tire label on your car, and keep at least the load index and speed rating of the original size.
Use the live calculator
Compare Lexus tire sizes before replacing or upsizing
Factory sizes for IS/ES/NX/RX/GX/LX, size comparison and speedo error — all in one tool.
Lexus model families
Sizes for each model family, from Lexus owner's manuals.
Sedans: ES and IS
Character
Front-drive or all-wheel-drive ES, rear-drive or all-wheel-drive IS
Typical OEM range
ES 215/55R17, 235/45R18, 235/40R19; IS 235/45R18 and a staggered 235/40R19 front with 265/35R19 rear (2021+)
What matters most
Match the load index and speed rating of the size on your tire label. Lexus says not to use tire sizes other than those it recommends.
Sizes are from the 2016 to 2024 Lexus owner's manuals. The IS changed sizes with the 2021 refresh.
Crossovers: NX and RX
Character
Compact and mid-size luxury crossovers
Typical OEM range
NX (2022+) 235/60R18, 235/50R20; RX (2023+) 235/60R19, 235/50R21
What matters most
The 2024 NX manual notes tire chains cannot be mounted on 235/50R20 tires. The RX 500h manual also lists a 101W speed rating on 235/50R21.
Both models changed sizes with their latest redesigns, so older and newer cars are listed separately below.
Body-on-frame SUVs: GX and LX
Character
Large luxury SUVs
Typical OEM range
GX 460 P265/60R18, 265/55R19; GX 550 265/70R18, 265/55R20, 265/50R22; LX 600 265/65R18, 265/55R20, 265/50R22
What matters most
These cars list 265 wide tires with load indexes from 109 to 116, so keep at least the original load rating.
Wheel nut torque is 97 ft-lbf (131 N-m) on the GX 550 and LX 600.
OEM sizes by model
Factory tire sizes listed in Lexus owner's manuals. Which one your car has depends on trim, so check your tire label.
| Model | Sizes in the manual | Wheel range | Rim widths | Torque and source |
|---|---|---|---|---|
| Lexus ES (2019–2024) | 215/55R17 94V, 235/45R18 94V, 235/40R19 92V | 17–19 inch | Rim widths 7 1/2J (17), 8J (18, 19) | Wheel nut torque 76 ft-lbf (103 N-m). Source: 2019 to 2024 ES manuals. |
| Lexus IS (2021–2024) | 235/45R18 94V/Y, 235/40R19 92V/Y or 96Y front, 265/35R19 94V/Y rear | 18–19 inch | Rim widths 8 1/2J, and 9 1/2J for the 19 inch rear | Wheel bolt torque 103 ft-lbf (140 N-m). Source: 2021 to 2024 IS manuals. |
| Lexus IS (2016–2020) | 225/45R17 91V/W, 225/40R18 88W/Y front, 255/35R18 90W/Y rear | 17–18 inch | Rim widths 7 1/2J (17), 8J front and 8 1/2J rear (18) | Wheel nut torque 76 ft-lbf (103 N-m). Source: 2016 and 2018 IS manuals. |
| Lexus UX (2020, 2024) | 215/60R17 96H (2020), 225/50RF18 95V | 17–18 inch | Rim widths 6 1/2J (17), 7J (18) | Wheel nut torque 76 ft-lbf (103 N-m). Source: 2020 UX 200 and 2024 UX 250h manuals. |
| Lexus RC (2020, 2024) | 235/45R18 94V/Y, 235/40R19 92V/Y or 96Y front, 265/35R19 94V/Y rear | 18–19 inch | Rim widths 8J (18, 2020), 8 1/2J (18 and 19 front), 9 1/2J (19 rear) | Wheel bolt torque 103 ft-lbf (140 N-m) in 2024, 76 ft-lbf (103 N-m) in 2020. Source: 2020 and 2024 RC manuals. |
| Lexus RC F (2020, 2024) | 255/35ZR19 92Y front, 275/35ZR19 96Y rear | 19 inch | Rim widths 9J front, 10J rear | Wheel bolt torque 103 ft-lbf (140 N-m) in 2024, 76 ft-lbf (103 N-m) in 2020. Source: 2020 and 2024 RC F manuals. |
| Lexus LC (2020, 2024) | 245/45RF20 99Y front, 275/40RF20 102Y rear (2020); 245/40R21 96Y front, 275/35R21 99Y rear | 20–21 inch | Rim widths 8 1/2J front, 9 1/2J rear | Wheel nut torque 103.3 ft-lbf (140 N-m). Source: 2020 LC 500 and 2024 LC 500/500h manuals. |
| Lexus NX (2022–2024) | 235/60R18 103H, 235/50R20 100V | 18–20 inch | Rim width 7 1/2J | Wheel bolt torque 103 ft-lbf (140 N-m). Tire chains cannot be mounted on 235/50R20. |
| Lexus NX (2020) | 225/65R17 102H, 225/60R18 100H, 235/55R18 100V | 17–18 inch | Rim widths 7J (17), 7 1/2J (18) | Wheel nut torque 76 ft-lbf (103 N-m). Source: 2020 NX 300 manual. |
| Lexus RX (2023–2024) | 235/60R19 103V, 235/50R21 101V (101W on RX 500h) | 19–21 inch | Rim width 8J | Wheel bolt torque 103 ft-lbf (140 N-m). |
| Lexus RX (2018) | 235/65R18 106V, 235/55R20 102V | 18–20 inch | Rim width 8J | Wheel nut torque 76 ft-lbf (103 N-m). |
| Lexus GX 460 (2023) | P265/60R18 109H, 265/55R19 109V | 18–19 inch | Rim width 7 1/2J | Source: 2023 GX 460 manual. |
| Lexus GX 550 (2024) | 265/70R18 116H, 265/55R20 113V, 265/50R22 112V | 18–22 inch | Rim width 7 1/2J | Wheel nut torque 97 ft-lbf (131 N-m). |
| Lexus LX 600 (2023–2024) | 265/65R18 114V, 265/55R20 113V, 265/50R22 112V | 18–22 inch | Rim widths 7 1/2J (18), 8J (20, 22) | Wheel nut torque 97 ft-lbf (131 N-m). |
Best replacement logic: what Lexus says
Rules from Lexus's owner's manuals for choosing and replacing tires.
Tire sizes
Applies to
All Lexus models
Rule
The sizes Lexus recommends
What Lexus says
Lexus's owner's manual says not to use tire sizes other than those recommended by Lexus.
Note
Check the tire label on your car and ask a Lexus dealer before changing size.
Mixing tires
Applies to
All Lexus models
Rule
A matched set
What Lexus says
Lexus says not to mix tires of different makes, models or tread patterns, or of remarkably different treadwear, and not to mix summer, all season and snow tires or differently constructed tires.
Note
The manual lists this as a precaution to avoid damage and dangerous handling.
Tire age
Applies to
All Lexus models
Rule
Any tire over 6 years old
What Lexus says
Lexus says any tire over 6 years old must be checked by a qualified technician even if it has seldom or never been used.
Note
Check the DOT date on every tire.
Wheels
Applies to
Anyone changing wheels
Rule
Equivalent wheels
What Lexus says
Lexus says replacement wheels should be equivalent in load capacity, diameter, rim width and inset (offset), and does not recommend wheels of different sizes or types, used wheels, or bent wheels that have been straightened.
Note
We could not source bolt pattern or offset from Lexus, so confirm them with a Lexus dealer.
Plus sizing and wheel upgrades
Diameter differences between sizes Lexus lists in its manuals. These are calculated, and Lexus gives no plus-size advice. The plus sizing options calculator and the wheel offset converter handle the arithmetic for other sizes and wheels.
ES: 17 to 18 inch
Calculated
Lexus lists both sizes (215/55R17 26.31 in, 235/45R18 26.33 in, +0.1% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
Check the load index and rim width for the size you choose.
ES: 18 to 19 inch
Calculated
Lexus lists both sizes (235/45R18 26.33 in, 235/40R19 26.40 in, +0.3% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
Both are on 8J wheels in the manuals.
IS (2021+): 18 to 19 inch
Calculated
Lexus lists both sizes (235/45R18 26.33 in, 235/40R19 26.40 in, +0.3% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
The 19 inch IS is staggered with a 265/35R19 rear.
NX (2022+): 18 to 20 inch
Calculated
Lexus lists both sizes (235/60R18 29.10 in, 235/50R20 29.25 in, +0.5% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
Tire chains cannot be mounted on 235/50R20.
RX (2023+): 19 to 21 inch
Calculated
Lexus lists both sizes (235/60R19 30.10 in, 235/50R21 30.25 in, +0.5% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
The RX 500h also lists a 101W speed rating.
LX 600: 18 to 22 inch
Calculated
Lexus lists both sizes (265/65R18 31.56 in, 265/50R22 32.43 in, +2.8% diameter, calculated).
Source
Both sizes are listed in Lexus owner's manuals.
Note
Rim width is 7 1/2J on the 18 inch and 8J on the 22 inch.
Check with a Lexus dealer
Lexus says to use only recommended tire sizes and equivalent wheels. Use the calculator to see the diameter change, then ask a Lexus dealer.
Run-flat, AWD, and staggered fitment
What Lexus's manuals say about run-flat tires, mixing tires, staggered sizes and load ratings. To compare a staggered front and rear pair, use the staggered fitment calculator; for what manufacturers say about AWD mixing see the AWD tire size mismatch guide.
Run-flat tires
Lexus's manual says run-flat tires are for the vehicle they were fitted to, that run-flat and normal tires must not be mixed, and that if non-genuine Lexus wheels are used it may be impossible to sufficiently demonstrate the performance of run-flat tires. It also says to replace a flat run-flat tire before the vehicle has been driven about 50 miles (80 km), and not to use a repaired tire.
Mixing tires and AWD
Lexus does not publish a diameter percentage in the manuals we checked. It says not to mix tires of different makes, models or tread patterns, and that winter tires should be the same size and brand on all four wheels. Michelin says that with no instructions in the owner's manual all four tires on an AWD or 4WD vehicle must be the same size with circumferences within 1 inch (2.5 cm).
Staggered setups
The 2021+ IS lists a staggered 19 inch set (235/40R19 front, 265/35R19 rear) and the 2016 to 2020 IS a staggered 18 inch set (225/40R18 front, 255/35R18 rear). The IS manuals give separate tire chain instructions for cars with front and rear tires of the same size.
Load and speed rating
The manuals list a load index and speed rating for every size, for example 103V on the 2023 RX 19 inch and 116H on the GX 550 18 inch. Keep at least the load index and speed rating of the size on your tire label.
Winter and seasonal strategy
What Lexus's manuals say about snow, all season and summer tires.
| Topic | Rule | What Lexus says |
|---|---|---|
| Snow and ice | Snow tires on all four wheels | Lexus says to replace all four tires when installing snow tires and to select tires of the same size, construction and load capacity as the original ones. |
| Winter tire matching | Same size and brand | The NX manual says to have the vehicle fitted with four winter tires and ensure all of the tires are the same size and brand. |
| All-season tires | Check the manual | Lexus says all season tires are designed to provide better traction in snow and be adequate for most winter conditions, but do not have adequate traction compared with snow tires in heavy or loose snow. |
| Summer tires | Not for snow or ice | Lexus says summer tires are inadequate for driving on snow-covered or icy roads and recommends snow tires there. |
Common Lexus tire mistakes
Five mistakes to avoid, based on Lexus's owner's manuals.
Fitting a size Lexus does not recommend
Why it matters: Lexus says not to use tire sizes other than those it recommends.
What to do instead: Compare the new size with the factory size in the calculator and ask a Lexus dealer first.
Mixing tire makes, models or tread patterns
Why it matters: Lexus lists this as a precaution to avoid damage to drive train parts and dangerous handling.
What to do instead: Replace tires as a matched set and do not mix summer, all season and snow tires.
Mixing run-flat and normal tires
Why it matters: Lexus says not to mix run-flat tires and normal tires.
What to do instead: Keep the same tire type on all four wheels, and ask a Lexus dealer before switching type.
Fitting snow tires on some wheels only
Why it matters: Lexus says to use snow tires on all, not just some, wheels.
What to do instead: Fit four matching snow tires.
Ignoring tire age
Why it matters: Lexus says any tire over 6 years old must be checked by a qualified technician even if it has seldom or never been used.
What to do instead: Check the DOT date on every tire.
Check with a Lexus dealer
Sizes and figures on this page come from Lexus owner's manuals; diameters and percentage differences are calculated. Always confirm tire and wheel changes with a Lexus dealer and the tire label on your car.
Before you replace or upsize
Run the exact Lexus tire sizes through the calculator
Factory sizes, size comparison and speedo error — all in one tool.
Questions Lexus owners ask about tire sizes, answered from Lexus's manuals.