Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
3rd gen Tacoma · 2018
2018 Tacoma SR tire size.
The factory tire and wheel package for the 2018 Toyota Tacoma SR midsize pickup, the biggest tire it fits at each lift height, and upgrade sizes worked through.
This page covers the 2018 SR and SR5 4-cylinder together: they share the same factory tire and wheel package. The 2018 SR5 4-cylinder page is the canonical one for that shared package.
Factory tire size
Our fitment data puts the 2018 Toyota Tacoma SR on P245/75R16 tires with 16-in styled steel or alloy wheels — the common factory pattern for this model year rather than a trim mapping we can source. Confirm the exact size on the driver's door placard or the tire sidewall before you buy.
- On the 2018 SR, P245/75R16 measures 30.5 in tall and 9.6 in wide, with a 7.2 in sidewall and 662 revolutions per mile.
- The 2018 SR is listed as standard or package-dependent on entry 4-cylinder configurations, with the tire recorded as all-season.
- Modeled estimate: a stock-height 3rd gen Tacoma like the 2018 SR tops out near 265/70R17 (~31.6 in) on factory offset. On its factory 16-inch wheel, the tallest size our reconciled rules publish at that height is 265/75R16 (31.6 in).
- Common factory pattern — not verified against a year-specific Toyota document.
Stock size and dimensions
all-season on 16-in styled steel or alloy, varies by package
What 245/75R16 measures — diameter, width, sidewall, and the other Tacoma trims that ship it.
- Diameter
- 30.47 in
- Width
- 9.65 in
- Sidewall
- 7.23 in
- Revs / mile
- 662
Sizes for the 2018 Tacoma SR follow the common factory pattern for the 3rd gen Tacoma — confirm yours on the door placard or the tire sidewall.
What size tires does a 2018 Tacoma SR have, and what is the biggest that fits?
Our fitment data puts a 2018 Toyota Tacoma SR on P245/75R16 tires, 30.5 in tall, mounted on 16-in styled steel or alloy wheels — the common factory pattern for 2018, not a trim mapping we can source. Without a lift, the tallest size our reconciled fitment rules publish for this truck's 16-inch wheel is 265/75R16 at 31.6 in; a leveling kit does not change that answer. The table below runs the 2018 Tacoma SR through every lift height our 3rd gen Tacoma model covers, as a midsize pickup on factory-style offset — lower-offset wheels or spacers move each row up the work ladder. Confirm the exact size on the driver's door placard or the tire sidewall before you buy.
| Spec | 2018 SR |
|---|---|
| Stock tire size | P245/75R16 |
| Overall diameter | 30.5 in |
| Section width | 9.6 in |
| Sidewall height | 7.2 in |
| Revolutions per mile | 662 |
| Wheel | 16-in styled steel or alloy, varies by package |
| Factory wheel offset | +25 mm on a 16x7 wheel (approximate factory value) |
| Tire type | all-season |
| Availability | standard or package-dependent on entry 4-cylinder configurations |
| Setup | Tallest size on the factory 16-inch wheel | Change from 245/75R16 | Clearance work our per-size rules add | Modeled 3rd gen ceiling (any wheel) and the work it lists |
|---|---|---|---|---|
| Stock height | 265/75R16 (31.6 in) | +1.18 in (+3.88%) | None | 265/70R17 (31.6 in) |
| Leveling kit (1-2 in) | 265/75R16 (31.6 in), same as the row above | +1.18 in (+3.88%) | None beyond the setup | 275/70R17 (32.2 in); remove mud flaps |
| 3 in suspension lift | 265/75R16 (31.6 in), same as the row above | +1.18 in (+3.88%) | None beyond the setup | 285/70R17 (32.7 in); fender liner trim / pushback, aftermarket UCAs recommended, and cab mount chop for rub-free off-road |
| 4-6 in lift | 285/75R16 (32.8 in) | +2.36 in (+7.75%) | Minor changes | 35x12.50R17 (35.0 in); cab mount chop / relocation, pinch weld, high fender-liner trim, and firewall and front-bumper trimming |
Upgrade sizes for a 2018 Tacoma SR, and what each needs
Two steps up from the 2018 Tacoma SR's P245/75R16, all on its factory 16-inch wheel: 265/75R16, a mild upgrade that clears at stock height; and 285/75R16, a balanced 33 that needs a 4-6 in lift with minor changes. The speedometer column assumes the truck is still calibrated for the factory tire, and every fit tier is the stricter of our two fitment sources — a modeled estimate for this truck, not an install we measured.
| Size | Diameter | Change from 245/75R16 | True speed when the speedometer reads 60 mph | Fit tier (stricter source) |
|---|---|---|---|---|
| 265/75R16 | 31.6 in | +1.18 in (+3.88%) | 62.3 mph | Stock height |
| 285/75R16 | 32.8 in | +2.36 in (+7.75%) | 64.7 mph | 4-6 in lift, minor changes |
Worked example: will 285/75R16 fit a 2018 Tacoma SR?
Going from the 2018 Tacoma SR's 245/75R16 to 285/75R16: the new tire is 32.8 in tall against 30.5 in, a +7.75% change in diameter, and 1.6 in wider. With the speedometer still calibrated for the factory tire, an indicated 60 mph is really about 64.7 mph and an indicated 70 about 75.4 mph. On fit, 285/75R16 needs a 4-6 in lift with minor changes on this truck, the stricter of our two sources (the generation matrix's modeled ceilings). It is a modeled estimate, not a measured install — confirm the exact tire model's moulded diameter and your wheel offset before ordering.
| Measurement | 245/75R16 | 285/75R16 | Change |
|---|---|---|---|
| Overall diameter | 30.5 in | 32.8 in | +2.36 in (+7.75%) |
| Section width | 9.6 in | 11.2 in | +1.57 in |
| Sidewall height | 7.2 in | 8.4 in | +1.18 in |
| Revolutions per mile | 662 | 614 | -48 |
| True speed at an indicated 60 mph | 60.0 mph | 64.7 mph | +4.65 mph |
What P245/75R16 measures on a 2018 Tacoma SR
P245/75R16 is 245 mm wide at a 75 percent sidewall ratio on a 16-inch wheel. Through standard tire math that is 30.5 in of overall diameter, 9.6 in of section width, a 7.2 in sidewall, and about 662 revolutions per mile — the figures behind the 2018 SR's speedometer calibration. That package is standard or package-dependent on entry 4-cylinder configurations, riding 16-in styled steel or alloy wheels.
Note the P prefix on the 2018 SR's factory size (P245/75R16): that is a P-metric passenger-rated tire, not an LT light-truck size. The same 245/75R16 in LT form runs a stiffer casing, a higher load rating, and more weight.
Bigger tires on a 2018 Tacoma SR
Staying on the factory 16-inch wheel of a 2018 SR, 2 sizes in our candidate set clear at stock height with no lift and no clearance work, and inside the modeled stock ceiling of 31.6 in: 265/70R16 at 30.6 in and 265/75R16 at 31.6 in. Set against the 2018 SR's P245/75R16, the closest of them comes out 0.1 in taller and 0.8 in wider. Common TRD Off-Road and TRD Pro third-gen factory-class size.
Past that, the 16-inch sizes our set offers a 2018 SR need suspension or clearance work: 285/75R16 (32.8 in) sits behind a 4-6 in lift with minor changes. Where the two sources disagree, the stricter tier is the one shown: the 3rd gen Tacoma matrix's modeled ceilings are stricter than our per-size table for 285/75R16. Those tiers come from our fitment rule-set, not a truck we measured; lower-offset wheels push each one harder into the fender.
Add a leveling kit and our generation fitment matrix estimates a 3rd gen Tacoma at 275/70R17 (~32.2 in) — 1.7 in taller than the 2018 SR's P245/75R16. Clearance work it lists: Remove mud flaps. 285/70R17 (33s) fits street-only with fender-liner trim + heat gun, but rubs off-road at full lock. These are modeled estimates, not measured installs: offset, alignment, and the tire's real moulded size all move the answer.
Where the SR sits in the 2018 Tacoma lineup
Sorted by factory tire diameter, the 2018 Tacoma trims we cover run from P245/75R16 at 30.5 in (SR and SR5 4-cylinder) up to P265/70R16 at 30.6 in (TRD Off-Road and TRD Pro). The SR's P245/75R16 is 1st of the 4 distinct sizes in that spread: 4 trims above it run a taller factory tire and nothing runs shorter.
A caution for 2018: this model year is not proven against a year-specific Toyota document, so read the size above as the common factory pattern for a 2018 SR, not a verified trim-level spec. 2017 through 2020 share the same factory tire lineup, and 2018 sits inside that span. The factory package is shared as well — SR and SR5 4-cylinder leave the factory on the same tire and wheel. The door-jamb placard and the sidewall on the truck settle it.
Top-ranked 245/75R16 tires for a 2018 Tacoma SR
Our tire dataset scores 17 models available in 245/75R16, the size the 2018 Tacoma SR runs from the factory on all-season. Below are the 3 best-ranked highway / all-season models in that size, plus mild all-terrain pick Destination A/T2 as a deliberate contrast — it scores differently because it is built for a different job.
Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
Toyo Open Country H/T II
6.7/10Highway / All-Season
Best for quiet daily, wet roads, long treadlife.
Mild All-Terrain
Best for quiet daily, light trail, snow.
Scores are a 0-10 editorial synthesis of published reviews, manufacturer specifications, and retailer fitment data — not tires we tested ourselves. Availability in 245/75R16 for the 2018 SR comes from that dataset's own size catalog, and the shortlist follows the dataset's editorial rank — the 0-10 figure beside each pick is the blended score, one input to that rank rather than the thing it sorts on, so a model further down the rank can carry a higher number. How we source and score.
2018 Tacoma SR tire questions
Not at stock height. On the 2018 SR's factory wheel, the 33-class size in our candidate set that needs the least work is 285/75R16 at 32.8 in. Our two sources disagree here, so this page publishes the stricter one: our per-size table alone would rate it for 2-3 in lift, but its 32.8 in is past the modeled 3rd gen Tacoma ceilings below a 4-6 in lift. Plan for a 4-6 in lift, and treat both sources as modeled estimates rather than installs we measured.
Our data lists the 2018 SR on 16-in styled steel or alloy — a 16-inch wheel. Across the whole 2018 range we cover 16-inch, 17-inch, and 18-inch wheels, so wheel diameter is one of the things that changes between trims. Keeping the factory diameter keeps the sidewall the truck was tuned for, and it keeps the tire choices in our size data open to you.
On a 2018 SR, P245/75R16 works out to 30.5 in of overall diameter and 9.6 in of section width, on a 16-inch wheel with a 7.2 in sidewall. The math is the standard one: 245 mm of width at a 75 percent ratio gives the sidewall, and diameter is the 16-inch rim plus twice that sidewall. At that size the tire turns about 662 revolutions per mile.
Open the driver's door of the SR and read the tire and loading information placard on the door jamb: it carries the original tire size and the cold inflation pressures set for it. Then read the sidewall of the tire actually fitted, since a previous owner may have changed sizes. For 2018 we treat the SR mapping as the common factory pattern rather than a sourced trim-level spec, so the placard outranks any table, including this one.
On the 2018 SR's factory 16-inch wheel, the tallest size our reconciled fitment rules publish at stock height is 265/75R16 at 31.6 in, with no clearance work. The 3rd gen Tacoma matrix's own stock ceiling, on any wheel, is 265/70R17 (~31.6 in). A leveling kit does not change the answer on this wheel diameter: no taller 16-inch size in our set clears until a bigger lift. These are modeled estimates for a midsize pickup on factory-style offset, not measured installs; lower-offset wheels and spacers move every answer toward more work.